Agilent Technologies 6031A manual

SERVICE MANUAL A UTORA NGING SYSTEM DC POWER SUPPLY A GILENT MODELS 6030A, 6031A , 6032A and 6035A FOR INSTRUM ENTS WIT H SERIA L NUMBERS A gilent M odel 6030A; Serials US38320301 and above A gilent M odel 6031A; Serials US38310376 and above A gilent M odel 6032A; Serials US38321026 and above A gilent M odel 6035A; Serials US38320281 and above For [...]

2 CERTIFICA TION Agilent Technologies certifies that this pr oduct met its published specifications at time of shipment from the factor y. Agilent Technologies further cer tifies that its calibration measurements ar e traceable to the United States National Bureau of Standards, to the extent allowed by the Bur eau's calibration facility, and t[...]

3 SA FETY SUMM A RY The following general safety precautions must be observed during all phases of operation, service and repair of this instrument. Failure to comply with these precautions or w ith specific warnings elsewhere in this manual violates safety standards of design, m anufacture, and intended use of the instrument. Agilent Technologies [...]

4 Safety Sy mbol Defini tions Sym bol Description Sym bol Description Direct current Terminal f or Line conduc tor on perman ently installed equipment Alternatin g current Caution, ris k of electric shock Both direct and alternating current Cautio n, hot surfa ce Three-phase altern ating current Caution (refer to accompany ing docum ents) Earth (gr[...]

5 TA BLE OF CONTENTS Introduction ............................................................................................................................................................................ 9 Scope .......................................................................................................................................[...]

6 Secondary Interface Troubleshootin g ............................................................................................ ..................................... 41 Voltage and C urrent DAC ........................................................................................................ ....................................... 41 Read[...]

7 l00 Vac Input Power Optio n 100 ................................................................................................. ...................................... 119 General Inf ormation ............................................................................................................ .............................................[...]

9 1 Introduction Scope This m anua l contain s inf ormation for troubl eshootin g the A gilen t 6030A, 6031A , 6032A, or 6035A 1000 W A utorangin g Power Supply to the component level. Wherever applicable, the service in structions given in this m anual refer to pertinent inf ormation provided in t he Operation Man ual (P/N 5959- 3301). Both m anua[...]

10 Manual Revisions Agilent T echnologies in struments are identif ied by a 10-digit serial num ber. T he f ormat is described as follows: first tw o letters indicate the cou ntry of manu facture. The next f our digits are a code that iden tify eith er the date of m anufacture or of a signi ficant desig n change. The last four digits are a sequ ent[...]

11 2 Calibration and V erification Introduction This section provides test and calib ration procedures. The ope ration-v erification tests comprise a short procedure to verify that the un it is performing properly, w ithout testing all specifi ed parameters. After troubleshooting an d repair of a defective power supply you can u sually v erify prop[...]

12 Table 2- 1. Test Equ ipment Required TYPE REQUIRED CHARACTERISTICS USE RECOMM ENDED MODEL Oscilloscope Sensitivity : 1 mV Bandw idth: 20MHz & 100MHz Input: diff erential, 50 Ω & 10M Ω P,T Agil ent 54504A RMS Voltm eter True rms , 10MHz bandw idth Sensitivity : 1 mV Accu racy: 5% P Ag ilent 3400B Logi c Pulser 4.5 to 5.5Vdc @ 35m A T [...]

13 Table 2- 2. Guide to Recalibrat ion A fter Repair Printed Circ uit Board Block Name Ref. Desig. Perform T hese Procedures A1 Main Board R3 Current Monitor Full Scale Calibration Constant Current Fu ll Scale Calibration A1 Main Board T1, T 2 Power Lim it Calib ration A5 Diode Board CR4 Power Lim it Calibration A2 Control Board Constant Voltage Ci[...]

14 Table 2-2. Guide to Recalibr ation A fter Repair (continue d) Printed Circ uit Board Block Name Ref. Desig. Perform T hese Procedures A8 GPIB Board Voltage DAC All Rem ote Read back Zero Calibration Constant Voltage Full Scale Calibration Voltage Monitor and Remote Readback Full Scale Calibration Constant Voltage Zero Calibration A8 GPIB Board C[...]

15 Mainten ance described h erein is perf ormed w ith pow er supplied to t he inst rumen t, and protectiv e covers remov ed. Such m aintenance s hould be perform ed only by service trained pers onnel w ho are aware of the hazards inv olved (for exam ple, fire and electrical shock). Where m aintenance can be perf ormed w ithout pow er applied, the p[...]

16 g. Adjust A8R51 (READBACK ZERO) un til the value displayed on the cont roller toggles between: 0 and 50m V (6030A) 0 and 5m V (6031A) 0 and 15m V (6032A) 0 and 125m V (6035A) h. After a djusti ng A8R51 you must co ntinue the c alibr ation p roce dure thr ough to the complet ion of Co nstant Vol tage Zero Calibration . Remem ber to disconnect the[...]

17 Constant Voltage Full Scale Calibrat ion Note: Perform this procedure only af ter completing Rem ote Readback Zero Calibration. a. Remove all ex ternal test circuits. b. Send str ing: "VSET 200; ISET 5; OUT ON" (6030A) '' VSET 20; ISET 5; OUT ON" (6031A) "VSET 60; ISET 5; OUT ON" (6032A) "VSET 500; ISET 5;[...]

18 Constant Voltage Zero Calibration Note : Perform this procedure only after com pleting Voltage Monitor and Rem ote Readb ack Full Scale Calibration. a. Send string "VSET 0; ISET 5; OUT ON". b. Connect an external su pply to the pow er supply as s hown in Figure 2- 2. c. Attach th e DVM from - S to + S on the rear panel. d. A d j u st A[...]

19 Current Monitor Full Scale Calibration Note: This pro cedure requires that I- MON ZERO (A2R8) be adjusted within specif ications. If it is not, perform the Curren t Monitor Zero C alibration before proceeding. a. Connec t Rm current-monit oring shunt: (1millioh m, 6031A ) (10 millioh m, 6030A , 6032A) (100 millioh m, 6035A ) 0.05% or better acro[...]

20 Pow er Limit Calibration Note: This pro cedure requires that CC PROG F. S. (A8R55) be adjusted within specif ications. If it is not, perform Constant C urrent Full Scale Calibration before proceeding. a. Connec t the po w er sup ply to the ac power l ine through a variab le auto transfor mer. Connec t a DVM a cross the input pow er rails, with t[...]

21 i. Adjust A2R26 (UPP ER KNEE) clockw ise until front panel CV LED turns on. Pow er supply output should be: 200 ± 0.4V @5.25A in CV m ode (6030A) 20.5 ± 0.5V @55A in CV m ode (6031A) 60 ± 0.4V @18.2A in CV m ode (6032A) 500 ± 0.4V @2.2A in CV m ode (6035A) Resistance Programming Full Scale Calibration a. Send str ing ''OUT OFF"[...]

22 You may substitute: 3.5 Ω 1000W load resis tor (6030A) 0.069 Ω 1000W load resis tor (6031A) 0.4 Ω 1000W load resis tor (6032A) 40 Ω 1000W load resis tor (6035A) in these tests: CV Load Ef fect (Load Reg ulation) CV PARD (R ipple and Noise) CC Source Ef fect (Line Reg ulation) CC PAR D (Ripple and Noise) The substitution of the load resis[...]

23 '' VSET 0.1; ISET 120'' (6031A) '' VSET 0.09; ISET 50" (6032A) '' VSET 1.0; ISET 5'' (6035A) d. The DVM reading should be in the rang e: 0.354 to 0.645Vdc (6030A ) 0.085 to 0.115Vdc (6031A ) 0.050 to 0.130Vdc (6032A ) 0.598 to 1.400Vdc (6035A ) Note the reading. e. Enter and run the followin[...]

24 Figure 2-5. Basic T est Setup d. Reduce th e resistance of the load to draw an output cu rrent of: 17.0Adc (6030A ) 120Adc (6031A ) 50 Adc (6032A ) 5.0 Adc (6035A ) Check that the u nit's CV LED rem ains lighted. e. Open-circuit the load. f. Record the output voltage at the digital voltm eter. g. Reconnect the load. h. When the reading sett[...]

25 e. Reduce the res istance of the load to draw an output curren t of: 5.0Adc (6030A ) 50 Adc (6031A ) 16.5 Adc (6032A ) 2.0 Adc (6035A ) Check that the u nit's CV LED rem ains lighted. f. Adjust autotransformer to the m inimum for your line v oltage. g. Record the output voltage at the digital voltm eter. h. Adjust autotransformer to the m a[...]

26 Figure 2-6. RM S M easurement T est Setup, CV PARD Test Peak Measurem ent Procedure. Figure 2- 7 show s the intercon nections of equ ipmen t to measure PA RD in Vpp. The equip ment ground ing and po wer connec tion instr uctions o f Paragr aph 2 -36 ap ply to this set up also. Connect t he oscillosc ope to the + S and - S terminals thro ugh 0.01[...]

27 Figure 2-7. Peak- To-Peak M easurement T est Setup, CV PARD Test Load Tran sient Recovery Ti me . Specif ied for CV operatio n only ; load transient recovery tim e is the time for the output voltage to return to w ithin a specified band around its set voltage follow ing a step chang e in load. Use the equipmen t setup of Figure 2-5 to display ou[...]

28 . Figure 2-8. L oad Transien t Recovery Wavef orm g. Check that the am plitude of the transient pulse at 1 m s is no more than : 150mV /2ms (6030A) 100mV /2ms (6031A) 100mV /2ms (6032A) 200mV /5ms (6035A) Constant Current (CC) Tests CC Setup. Constant-current tests are an alogous to constant-voltage tests, w ith the unit' s output short cir[...]

29 g. Send string: "VSET 200; ISET 17" (6030A) '' VSET 20; ISET 120" (6031A) '' VSET 60; ISET 50" (6032A) '' VSET 500; ISET 5" (6035A) h. Check that the voltage across Rm is in the range: 169.72 to 170.28m V (6030A) 119.4 to 120.55m V (6031A) 498.1 to 501.8 m V (6032A) 490 to 510 m V (6035A) No[...]

30 d. Tur n up outp ut curr ent to: 17.0Adc (6030A ) 120Adc (6031A ) 50Adc (6032A ) 5.0 Adc (6035A ) e. Increase the load resistance until th e output voltage between + S and - S decreases to: 60Vdc (6030A) 7.0Vdc (6031A) 20.0Vdc (6032A) 200 Vdc (6035A) Check that the CC L ED is still on. f. Adjust autotransformer to the m inimum for your line v ol[...]

31 Figure 2-9. CC PARD Test Setup Initialization Procedure Follow the procedure if either th e GPIB assembly has been replaced, or the EEPROM (U70) h as been replaced: 1. Install the GPIB assembly in the unit. 2. Turn th e power on and depending on you r unit' s model nu mber, se nd string : "EEINIT 6030" "EEINIT 6031'&apos[...]

33 3 T roubleshooting Mainten ance described h erein is perf ormed w ith pow er supplied to t he inst rumen t, and protectiv e covers remov ed. Such m aintenance s hould be perform ed only by service-train ed personnel wh o are aware of the hazards inv olved (for exam ple, fire and electrical shock). Where m aintenance can be perf ormed w ithout po[...]

34 Electrostatic Prot ection The following caution outlines important precautions w hich should be ob served w hen w orking w ith static sensitive compon ents in the pow er supply . This instru ment uses com ponents w hich can be dam aged by s tatic charge. Most s emicondu ctors can suffer ser ious pe rformance degra datio n as a resul t of static [...]

35 When replacing any heats ink-m o un ted componen ts except therm ostat, sm ear a thin coating of heatsink compou nd between the compon ent and heatsi nk. If a m ica insulator is used, sm ear a thin coating of heatsin k compou nd on both sides of the m ica insulator. Do not use any heatsink com pound containing silicone, which can mig rate and fo[...]

36 When installing the A4 power m esh board, lower it vertically , placing its tab into the A1 board slot, align the connector and press in place. A 5 Diode Board Removal After re moving the co ver, r emove the A5 D iode boar d by first r emoving the two scr ews (Po zidri v) that ho ld heat sinks to the A1 board, then lift vertically to rem ove the[...]

37 A C Input Wire Terminal Destination from color designato r location L6 (cha ssis) wh ite P left rear RFI filter wh ite/gray N behind A1K1 Circuit breaker wh ite/brown/gray L behind A1K1 L6 (chassis) w hite A1K1 front armatu re c. Remove the f ollowing m ounting screw s, all P ozidriv: 2 (1 each) from the output bus bars 7 from the A 1 board 4 fr[...]

38 Figure 3-1. Troubleshooting Isola tion[...]

39 Figure 3-1. Troubleshooting Is olation (continued)[...]

40 To remove the GPIB board, perform the GPIB board removal procedure discussed earlier in this section. Lay out the board as show n in Figure 3-2 w ith a piece of insu lating ma terial under the board. Reconn ect connectors W1, W2, W5, and W6 after the board is on the insulatin g material. Note: The GPIB board can be placed alongside the u nit for[...]

41 +5V and PCLR Circuits: Node Measurement U1-8 ≈ 3.5Vdc U1-2 = 4 Vdc U1-3 = 4.2Vdc U1-4 = 4.2Vdc U1-6 ≈ 50m Vdc Clock Signals (se e cloc k w avefo rms in Figure 3 -3) Node M easurement Source C7+,C8 + = 12 MHz (see wavefo rm) Y2 J5 -8 = 6M Hz (s ee wavefor m) U1 4 U35-12 ≈ 50mVdc (see w aveform) U35 Data Lines Check that all data and address[...]

42 Figure 3-3. Clo ck and Primary SA W aveforms[...]

43 Use the front panel controls to vary the output voltage an d current from zero to fu ll-scale output. Remem b er to turn off the unit an d connect a short acros s the output bef ore programm ing the current from zero to f ull scale. Use a DMM and ch eck the voltages at the follow ing nodes: CV DAC Circuits Node Setup Measu rement U69-6 Voltag e [...]

44 Figure 3-4. Readback and Secondary SA Waveforms[...]

45 Signature A nalysis Perform the sign ature analys is only after y ou have com pleted the Pr im ary Processor Tr oubleshooting. The easiest and m o st ef ficient m ethod of troubles hooting m icroprocessor-bas ed instrum ents is signature an alysis . Signature analy sis is similar to signal tracin g with an oscilloscope in linear circuits. Part o[...]

46 Return the J5 jumper to its norm al position when the front panel signature an alysis is com plete. Secondary SA For secondary SA troublesh ooting, conn ect the signatu re analyzer as show n in Table 3-3. Use a jum per wire an d short U4 pin 21 to com mon (U4 pin 20). Check f or the w aveform s in F igure 3- 4 and the si gnatu res in Table 3-8 f[...]

47 Table 3- 4. Primary Processor Signature T able (A 8U6 = P/N 5080-2160 REV A.00.00, A .00.01, A.00.02 and A .00.04) A.00.04 A.00.02 A.00.01 A.00.00 A( 0) A46A A 46A A46A A46A U16-12 U6-12 U8- 12 U12-11 U17-21 A( 1) 4148 UH8O UH8O UH 8O U16-13 U6-11 U8-11 U12- 13 U17-22 A( 2) 72F5 82H5 UO39 4FU1 U16-14 U6-10 U 8-10 U12-9 U17-23 A( 3) PAU8 9899 HOP[...]

48 Table 3-5. Front Panel LED Dis play and Indicator Drivers (A 8U6 = P/N 5080-2160 REV A .00.00, A.00.01, A .00.02 and A00.04 Inputs) Inputs: Node Measurement U1 to U10-1 6H15 U1 to U10-9 Cy cle pow er to unit --L o to Hi after approx . 160 ms U1 to U10-2,14 +5V U1 to U10-7 com mon U1-8 F 05U U2-8 50A 9 U3-8 6F 42 U4-8 AH52 U5-8 51U7 U6-8 PHFF U7-[...]

49 Table 3- 6. Front Panel Address Latches and Decod ers (A 8U6 = P/N 5080-2160 REV A .00.00, A.00.01, A .00.02 and A.00.04 Inputs) Inputs: Node Measurements U14 -26 To ggling (unsta ble) U14-35 37F 8 U14-38 1A BC U15-9, U17- 3,6 C ycle pow er to unit- -Lo t o Hi after approx . 160 ms U17-4,5 Cy cle pow er to unit --Hi t o Lo after approx . 160 ms [...]

50 Table 3-7. Front Pane l RPG Latches and Input Por t (A 8U6 = P/N 5080-2160 REV A.00.00, A .00.01 A.00.02, and A .00.04) Inputs: Node Measurement U11-1 1A BC U11-2 U12- 4,10 Toggling (uns table) U16-10 9H84 Procedure: Node S1 LC L released U11-13 Lo U11-7, U16- 9 Lo U16- 8 Hi S1 LC L depressed U11- 13 Hi U11-7, U16-8,9 Toggl ing S2 OUTPUT ADJUS T[...]

51 Table 3-8. Secondary Processor Signature Table DS(0) P 36U U4-1 U7- 15 U9-15 U11- 15 DS(1) 2280 U4-2 U7-14 U9-14 U 11-14 DS(2) 4277 U4-3 U7-13 U9-13 U 11-13 DS(3) 720F U4-4 U7-12 U9-12 U 11-12 DS(4) 6A31 U4-5 U7-11 U 9-11 U11-11 DS(5) 662U U4-6 U7-10 U 9-10 U11-10 DS(6) 6020 U4-7 U7- 9 U9-9 U11- 9 DS(7) 6327 U4-8 U7- 8 U9-8 U11- 8 DS(8) 1377 U4-[...]

52 The A4 FET Bo ard should only be raised on an extender wh en using the main troublesh ooting setup. NEVER use a FET Board extender when the unit is operated with its normal ( ≈ 320Vdc) bus v oltage. To do so is a person al shock hazard an d can dam age the pow er supply . To troubleshoot the pow er supply the A 4 power FE T board and A2 contro[...]

53 An isolation transf ormer provides ac voltage that is not referen ced to earth ground, thereby reducing the possibility of accidentally tou ching tw o points having high ac potential between them . Failure to use an isolation transformer as sh own in Fig ure 3-5 will cau se the ac mains v oltage to be co nnected directly to man y components an d[...]

54 AlR1, AlR3, and A lU1 connect to the ac mains voltage. Use a v oltmeter w ith both input terminals f loating to measure the rail v oltage. a. Select th e funct ional circui t for troubles hooting based on y our meas urem ents and Table 3-11, w hich provi des direction based on t he statu s of the PWM O FF and PWM ON s ignals . Figure 3-6. Modifi[...]

55 Table 3- 9. Control Board T est Connect or, A 2J7 PIN NO. SIGNAL NA M E Vdc W A VEFORM /CONDITIONS SOURCE Digital-Circuits Bias & Reference Voltages 24 +5V 5.0 A2Q9 (em itter) 22 + 20V(5V UNREG) 20.0 w ith 120Hz & 45KHz ripple AlC R6, AlC R7 14 2.5V ref 2.50 A2U7 (OU T) 6 0.5V ref 0.50 A2R24,A 2R84, A2R 85 Analog-Ci rcuits Bias V oltages[...]

56 Table 3- 10. Performance Failure Symptoms DEFECTIVE SYM PTOM S BOARD CHECK FUNCT IONA L CIRCUITS unexpla ined OV P shutdo wns A 2 O VP cir cuit, CV circuit no cur rent limit A2 CC cir cuit max current < specifi ed A2 CC Clamp, C C circuit max power < s pecified A2, A1 Power L imit, 20KHz clock, tran sform er AlT1 max voltage < sp ecifie[...]

57 Troubleshooting A C-Turn-On Circuits Relay AlK1 closes at 2.5 s econds and AC FAULT goes hig h at 2.9 seconds af ter 21V UNREG reaches abou t 13Vdc. AC FAULT high en ables the PWM if OVERVOLTAGE , INHIBIT , and OVER TEMP are also hig h. Circuits Included . Hig h AC and AC Dropou t Detectors, Bi as Voltage De tector, Q11A, 3- Second Delay and Rel[...]

58 Inputs: NODE (+) NODE (-) M EASUREMENT SOURCE A2J7- 26(PWM-ON) M 1.7 µ s, 20KH z pulse(see Wav eform #1) A2Ul 5-l ,A2J 5 1 1, A4P 1-A3 A2J7- 25(PWM-OFF ) M 10 µ s, 20KHz pu lse(see Wave form #2) A2U16-5,A 2J5-13,A4P1- A2 NODE (+) NODE (-) M EASUREMENT SOURCE A4P1- C1 A 4P1-A1 10.6Vdc AlU3- 2 A4Q2- D A4Q4- S 39Vdc A1C 51 ( + ),A4P1-22 to 25 A1C[...]

59 Figure 3-7. W aveforms[...]

60 +15V On A2 C ontrol Board. Voltage regulator A 2U11 regulates the voltag e across resis tor A2R99 to be 1.25Vdc. That sets the c urrent t hrough zene r dio de A2VR3 at 7. 5mAdc. T he output voltage i s 1.25 Vdc p lus 11. 7Vdc across A2 VR3 plus the vol tage across A 2R100. Circuit Included. +15 Vdc b ias supp ly circuit ry from conne ctor p in A[...]

61 Troubleshooting Dow n Programmer The down programm er d ischarg es the output wh en either PWM OFF is generated or CV ERROR is more negative th an about - 3Vdc. Comparator A 5U1 trigg ers dow n program min g w hen the v oltage at A 5U1-5 is le ss than about 4Vdc. Circuit Included . Dow n programm er and 10.6V bias su pply on A1 m ain board. Setu[...]

62 Outputs: NODE ( + ) NODE (-) SETUP MEASUREM ENT VM A2J7- 4 3.75Vdc A2U5- 1 " VP = 0 -14Vdc A2U3- 6 " VP = 0 -14Vdc A2U5-1 " VP = 5 4.7Vdc A2U3-6 " VP = 5 5.1Vdc A2U5- 7 " short A 2J7-24 to A2U5- 5 + 7.5Vdc If the failu re sym ptoms include output voltag e oscillation, check if the CV Error Am p circuit is at fau lt by sh[...]

63 Setup . The Main Troubleshooting Setu p, Page 53, except connect th e external supply to the unit's + OUT ( + ) and - OUT (-) term inals. Apply the ac m ains voltage to the isolation transformer. Adjust the u nit's OVP limit to 10Vdc. Set the external supply (EXTERNAL) as in structed below . Outputs: NODE ( - ) = A2J7-4 SET VOLTAGE NOD[...]

64 Outputs: SET VOLTAGE (Vdc) NODE ( + ) EXTERNAL INTERNAL M EASUREMENT A2U20- 1 0 0 TT L s q wav e, 320KHz A2U20- 5 0 0 TT L s q wav e, 40KHz A2U20- 6 0 0 TT L s q wav e, 20KHz A2U19- 5 0 2 20KHz A2U19- 6 0 2 20KHz A2U16- 5 40 2 10 µ s pu lse, 20KHz A2U16- 5 40 0 Lo A2U16- 4 40 20 48 µ s pulse, 20KHz A2U16- 4 40 0 hi A2U15- 1 40 20 1.7 µ s puls[...]

65 4 Principles of Operatio n Introduction This chapt er contains block diagram s, simpli fied sch ematic s, and related des criptions of the pow er supply . T he in strum ent can be thought of as co m prising two major sections: the GP IB, microcomputer, and inter face circuitry; and the power m esh and control circu its. Block diagram s represent[...]

66 Figure 4-1. GPIB Blo ck Diagram[...]

67 EEPROM The primary mi croprocessor determin es the pow er supply ID, start-up param eters, calibration con stants and s cale factors by reading the factory -initialized EEPROM. Isolation Two optical isolators tran smit s erial data between th e primary and secondary microproces sors wh ile maintain ing electrical isolation betw een the controlle[...]

68 Front Panel Board The front-pan el board, see Figure 4-2, con tains the VOL TS and AMPS display circuits, the rotary pulse gen erator (RPG) and RPG decoders, f ive pu shbutt on sw itches , mode in dicators, and th e OVP ADJUS T potentiomet er. Data from the microprocessor is shifted to the display circuits via DATA DOWN , and data from the f ron[...]

69 Figure 4-2. Front P anel Block Diagram[...]

70 Mode Indicators The front- panel m ode indicators are controlled by the m icroprocessor v ia DATA DO WN and the m ode indicator ou tput ports and l atches. DA TA DOWN sig nals are s hifted in by clock pulses f rom th e address decoders. OVP A djust Control The OVP ADJUST p otentiom eter sets the voltage level at w hich the overvoltag e pro tecti[...]

71 Figure 4-3. Output Char acteristics; Typical, Dua l Range, and A utoranging Supplies Figure 4-4. FET Control Signals Timing Diagram Powe r Mesh Figu re 4-5 is a block diagram of the pow er mesh. These ci rcuits con vert the ac in put pow er to approxim ately 320Vdc, and convert this dc voltage to the proper dc output voltage.[...]

72 Input Circuits . Pr imary po w er is co nnected thro ugh the AC Input Filter to the LINE sw itch and to the normally open contact s of the Inrush-Limit relay. When LINE switch is closed , current flows through the inr ush current limiting resistor and the norm ally closed relay con tacts to the Bridge Rectif ier/Voltage Doubler. This circuit is [...]

73 Control Board Figu re 4-6 is a block diagram of the con trol board. These circuit s mon itor the pow er supply operation and provide th e signals that control the pow er mesh. + 5V Bia s Supply. This circuit operates from th e + 5V Unregulated voltage f rom the m ain board, and generates + 5V and + 2.5V used by circuits on th e control board. Re[...]

74 Constant Current (CC) Circuit. The Constant Current Circu it compares the CURRENT SENSE voltage level to CC PROGRAMMING VOLTAGE to produce CC CONT ROL SIGNA L. CURRENT SENSE is develo ped across the current -mon itor resist or on the m ain board, an d is proportional to the pow er supply output curren t. CC PROG RAMMING VOLTAGE com es from one o[...]

75 Control Voltage Com parator. This circuit compares th e voltage at the CONTROL PORT (represents power requ ired at output) w ith PRIMARY CURRENT RAMP voltage (represents energy b eing stored for transf er to output). When RAMP voltage exceeds CONTROL PORT voltage, the Control Voltag e Comparator generates the CONTROL LIMIT signal to turn the PWM[...]

76 Figure 4-5. Po wer M esh Block Diagram[...]

77 Figure 4-6. Con trol Board Block Diagram[...]

79 5 Replaceable Parts Introduction This chapter contain s inform ation for ordering replacemen t parts. Table 5-1 lists parts in alph a-num eric order by ref erence designators and provides the following information: a. Referen ce Designators . Refer to Table 5-1. b. Agilen t Technologies model in w hich the particular part is us ed. c. Agilent T [...]

80 Ordering Information To order a replacement part, address order or inquiry to your local A gilent Technologies sales off ice. Specify th e follow ing inform ation for each part: Model, com plete serial number, an d any Option or special modif ication (J) num bers of the instrum ent; Agilen t Technologies part number; circuit ref erence designato[...]

81 Table 5- 3. Replaceable Parts List Ref. Desig Agilent M odel Agilent Part Number Description Al 6030A 06030-61032 Main Boa rd Assem bly 6031A 06031-61032 " 6032A 06032-61032 " 6035A 06030-61033 " Cl,2,4,5,6,8 all 0180-4528 cap 1800 µ F 200V C9 all 0160-5932 cap 0.47 µ F 250V C10 6030A,35A 0180-3699 cap 470 µ F 20% 35V 6031A,32A[...]

82 Table 5- 3. Replaceable Parts List ( continued) Ref. Desig Agilent M odel A g ilent Part Number Descrip tion CR1 all 1901- 0731 power rectif ier 400V CR2 all 1901- 0731 power rectif ier 400V lA CR3,4 all 1901-0050 diode, sw itchin g 80V 200m A CR5- 13 all 1901-0731 power rectif ier 400V DS1 al l 1990-0517 LED, v isibl e F1 all 2110-0001 fus e lA[...]

83 Table 5- 3. Replaceable Parts List ( continued) Ref. Desig Agilent M odel A g ilent Part Number Descrip tion R29,30 6030A 0811-1887 res 0.05 5% 10W 6035A 0811-3557 res 0.5 5% 10W R31 6030A 0757-0367 res 100K 1% 1/2W 6035A 0698-8959 res 619K 1% 1/8W R32 6030A 0686-7535 res 75K 5% 1/2W 6035A 0698-8959 res 619K 1% 1/8W R33 6030A 0757-0451 res 24.3K[...]

84 Table 5- 3. Replaceable Parts List ( continued) Ref. Desig Agilent M odel Agilent Part Number Description A2 6030A 06030-60022 Control Board Assembly 6031A 06011-60022 " 6032A 06032-60022 " 6035A 06030-60028 " C1-4 all 0160-5422 cap 0.047 µ F 20% 50V C5 all 0160-4801 cap 100pF 5% 100V C6-7 all 0160-5422 cap 0.047 µ F 20% 50V C8 [...]

85 Table 5- 3. Replaceable Parts List ( continued) Ref. Desig Agilent M odel A g ilent Part Number Descrip tion C47 all 0160-5422 cap 0.047 µ F 20% 50V C48,49 all 0160-4835 cap 0.1 µ F 10% 50V C50 all 0180-0291 cap 1 µ F 10% 35V C51 all 0180-1731 cap 4.7 µ F 50V C52 all 0180-0230 cap 1 µ F 20% 50V C53 all 0180-1731 cap 4.7 µ F 50V C54 all 018[...]

86 Table 5- 3. Replaceable Parts List ( continued) Ref. Desig Agilent M odel A g ilent Part Number Descrip tion J5,6 all 1251-5240 connector 20- pin J15 6030A,35A 1251-0600 connector 1-pi n L1 all 06023-80090 ch oke Q1-3 all 1854-0823 transi stor NPN Si Q4-6 all 1855-0413 J-FET P-chan Si Q7 all 1854-0823 trans istor NPN Si Q8 all 1853-0012 transist[...]

87 Table 5- 3. Replaceable Parts List ( continued) Ref. Desig Agilent M odel A g ilent Part Number Descrip tion 6031A 0757-0442 res 10K 1% 1/8W R35 6030A,35A 0683-1055 res 1M 5% 1/4W 6031A 0683-3355 res 3.3M 5% 1/4W 6032A 0683-1555 res 1.5M 5% 1/4W R36 all 0698-3455 res 261K 1% 1/8W R37 all 0698-4536 res 340K 1% 1/8W R38 6030A,35A 0698-4536 res 340[...]

88 Table 5- 3. Replaceable Parts List ( continued) Ref. Desig Agilent M odel A g ilent Part Number Descrip tion R57 6035A 0757-0124 res 39.2K 1% 1/8W R58 6030A 0757-0344 res 1M 1% 1/4W 6031A 0757-0449 res 20K 1% 1/8W 6032A 0698-3572 res 60.4K 1% 1/8W 6035A 0699-1630 res 4M 0.25% 1/2W R59,60 6030A 0698-4486 res 24.9K 1% 1/ 8W 6031A 0757-0442 res 10K[...]

89 Table 5- 3. Replaceable Parts List ( continued) Ref. Desig Agilent M odel Agilent Part Number Description R89-91 all 0683-2225 res 2.2K 5% 1/4W R92 6030A,35A 0898-4480 res 15.8K 1% 1/ 8W 6031A 0757-0457 res 47.5K 1% 1/8W 6032A 0757-0464 res 90.9K 1% 1/8W R93 all 0683-3325 res 3.3K 5% 1/4W R94,95 all 0683-2225 res 2.2K 5% 1/4W R96 all 0757-0481 r[...]

90 Table 5- 3. Replaceable Parts List ( continued) Ref. Desig Agilent M odel Agilent Part Number Description R139 all 0683-4725 res 4.7K 5% 1/4W R140 all 0683-2025 res 2K 5% 1/4W R141 all 0683-5135 res 51K 5% 1/4W R142 all 0683-6835 res 68K 5% 1/4W R143 all 0683-4725 res 4.7K 5% 1/4W R144 all 0757-0415 res 475 1% 1/8W R145 all 0683-1005 res 10 5% 1[...]

91 Table 5- 3. Replaceable Parts List ( continued) Ref. Desig Agilent M odel Agilent Part Number Description U12 all 1826-0527 IC vol tage regu lator 1.2/37V U13 all 1820-1287 IC buffe r quad NAN D U15 all 1820-1272 IC buffe r quad NOR U16 all 1820-1437 IC mu ltivibrator mon ostable dual U17 all 1826-0138 IC com parator quad U18 all 1820-1205 IC ga[...]

92 Table 5- 3. Replaceable Parts List ( continued) Ref. Desig Agilent M odel Agilent Part Number Description U1-4, 6- 11 all 1820-1433 IC shif t regist er, 8-bit U5 all 1820-1216 IC decoder, 3-t o-8 line U12 all 1820-1216 IC decoder, 3-t o-8 line U13 all 1820-1112 IC flip fl op, D-ty pe U14 all 1820-1199 IC in verter, HEX U15 all 1820-1197 IC gate [...]

93 Table 5- 3. Replaceable Parts List ( continued) Ref. Desig Agilent M odel Agilent Part Number Description A4 Mechan ical all 1205-0398 heatsink (CR1,4) all 1252-0093 socket pin (Q 1-4) (8) all 06032-20001 heatsin k (Q1,Q2) all 06032-20002 heatsin k (Q3,Q4) all 0380-1524 standoff , hex (7) A5 6030A 06030-60024 Di ode Board 6031A 06011-60024 "[...]

94 Table 5- 3. Replaceable Parts List ( continued) Ref. Desig Agilent M odel Agilent Part Number Description Q1 6030A, 35A 1855- 0767 FET N-chann el 6031A 1854-0264 transis tor NPN, Si 6032A 1855-0549 FET N-chann el Q2 6031A 1855-0549 FET N-chann el 6032A 1854-0755 transis tor NPN Si R1 6030A,32A ,35A 0683-1855 res 1.8M 5% 1/4W 6031A 0811-3460 res [...]

95 Table 5- 3. Replaceable Parts List ( continued) Ref. Desig Agilent M odel Agilent Part Number Description R18 6031A 0683-1005 res 10 10% 1/4W 6035A 0811-3842 res 600 10% 10W R20 6030A, 35A 0811- 3731 res 1.2 K% 2W T1 6031A 9170-0061 m agnet ic-core (jum per 8150-4777) TS1 all 3103-0081 swi tch, th ermal +202F U1 all 1826-0346 IC op amp VR1 all 1[...]

96 Table 5- 3. Replaceable Parts List ( continued) Ref. Desig Agilent M odel Agilent Part Number Description A8 all 5063-3463 GPIB Board C1 all 0160-5422 cap 0.047 µ F 20% 50V C2,3 all 0160-4807 cap 33pF 5% 100V C4 all 0160-5422 cap 0.047 µ F 20% 50V C5 all 0160-4822 cap 1000pF 100V C6 all 0180-0197 cap 2.2 µ F 10% 20V C7,8 all 0160-4807 cap 33p[...]

97 Table 5- 3. Replaceable Parts List ( continued) Ref. Desig Agilent M odel Agilent Part Number Description J9 all 1251-4927 connector 16-con tact J10 all 1251-5384 connector 3- contact L1 all 9170-1680 ch oke L2-4 all 9170-1454 core-shiel d bead Q1,4 all 1853-0089 transist or 2N4917 R1 all 0757-0457 res 47.5 1% 1/8W R2 all 0698-3155 res 4.64K 1% [...]

98 Table 5- 3. Replaceable Parts List ( continued) Ref. Desig Agilent M odel Agilent Part Number Description R68 all 0757-0400 res 90.9 1% 1/8W R69 all 0698-6320 res 5K 0.1% 1/8W R70 all 0757-0400 res 90.9 1% 1/8W R71 all 0698-6320 res 5K 0.1% 1/8W R72 all 0757-0400 res 90.9 1% 1/8W R73 all 0757-0451 res 24.3K 1% 1/8W R74 all 0757-0199 res 21.5K 1%[...]

99 Table 5- 3. Replaceable Parts List ( continued) Ref. Desig Agilent M odel Agilent Part Number Description U115 all 1820-6045 IC SN75A LS61610 U116 all 1820-6170 IC SN75A LS6160 U117 all 1821-1740 IC 9914 talker/listener VR2 all 1902-3172 diode, zener 11V VR3,4 all 1902-0049 diode, zener 6.19V VR6,7,8 all 1902-0766 diode, zener 18.2V Y1,2 all 041[...]

100 Table 5- 3. Replaceable Parts List ( continued) Ref. Desig Agilent M odel Agilent Part Number Description Chassi s Mechanical (cont) all 06032-00010 output bu ss bar (2) all 0340-1095 insul ator for bus bar (4) all 0380-1362 standoff , 12mrn (buss bar) (2) all 1510-0044 binding post, rear panel g round all 0400-0086 insul ated bush ing (u nder [...]

101 6 Component Location a nd Circuit Diagrams This chapter contain s compon ent location diagram s, schematics , and other draw ings u seful f or mainten ance of the pow er supply . Included in this section are: a. Component loc ation illustratio ns (Figures 6-1 thr ough 6-9) , showing the physical location a nd refere nce designato rs of almost a[...]

102 Table 6- 1. Schematic Diagram Notes (con tinued) For sing le in-line resis tor packages, pin 1 is marked w ith a dot. For integrated circuit pack ages, pin 1 is either m arked with a dot, or pin 1 is to the lef t (as view ed from top) of in dentation on th e integrated circuit packag e (except for A8U6 an d A8U 8) .[...]

103 Figure 6-1. Top View, Top Covers Removed[...]

104 Figure 6-2A . 6030A /35A M ain Board (A 1) and Output Filter Component Location[...]

105 Figure 6-2B. 6031A Main Board (A1) and Output Filter Component Location[...]

106 Figure 6-2C. 6032A Main Board (A1) and Output Filter Component Location[...]

107 Figure 6-3. Contr ol Board (A 2) Component Location Figure 6-4. Front Pane l Board (A 3) Component Location[...]

108 Figure 6-5. FE T Board (A 4) Component Location[...]

109 Figure 6-6A . 6030A /35A Diode Board (A 5) Component Location Figure 6-6B. 6031A Diode Board (A 5) Component Location[...]

110 Figure 6-6C. 6032A Diode Board (A 5) Component Location Figure 6-7. A C Input Filter (A 6) Component Location[...]

111 Figure 6-8. GP IB Board (A 8) Component Location[...]

112 Figure 6-9. 6035A Output Board (A 9) Component Location[...]

[...]

[...]

[...]

[...]

Figure 6-13A. GPIB Board Schematic Diagram[...]

Figure 6-13B. GPIB Board Schematic Diagram[...]

119 A l00 V ac Input Pow er Option 100 General Information Description Option 100 i s a modif ication of Agi lent 6030A /31A/32A /35A pow er supplies th at inv olves chan ging resistors on the A 2 board, recalibrating the supply, and ch anging th e Front Panel. T hese chan ges allow th e units to operate at a lower line voltag e of 87 to 106 Vac, w[...]

120 On Page 17, in Voltage Monitor and Remote Readback Full Scale Calibration step d, change the A 8R58 adj ustm ent to: 170.025 ± 6m V (6032A) 50.0075 ± 1.52m V (6032A) 425.063 ± 6 µ V (6035A) On Page 17, in Voltage Mon itor and Rem ote Readback Full Scale Calibration step c, chang e 5.000625V to: 4.250625V ± 100 µ V (6030A/35A ) 4.167187V ?[...]

121 On Page 21, in Electron ic load, make the follow ing resis tor changes: from 40 to 36 ohm s (6030A) from 0.4 to 0.57 ohm s (6031A) from 3.5 to 3 ohm s (6032A) from 250 to 300 ohm s (6035A) from 3.5 to 2.4 ohm s (6030A) from 0.069 to 0.043 ohm s (6031A) from 0.4 to 0.27 ohm s (6032A) from 40 to 30 ohm s (6035A) On Page 23, in Voltag e Programm i[...]

122 On Pages 25- 27, in RMS Measurem ent Procedure, Peak Measurem ent and L oad T rans ient Recovery Time, chan ge the output voltage to 42Vdc (6030A) 5.2Vdc (6031A) 13.5Vdc (6032A) 150Vdc (6035A) On Page 28 and 29, in paragraph Cu rrent Programm ing and Readback Accuracy steps c and g , change th e VSET values to: VSET 170 (6030A) VSET 50 (6032A) [...]

123 Chapter 3 Manual Changes: On Page 45, in Readback Multiplexer (U20), change Node U20-9, Measurem ent from + 5V to: + 4.25V (6030A/ 31A/35A ) + 4.167V (6032A) On Pag e 53 in Main Troubl eshootin g and on Pag e 54 in Troublesh ooting No-Out F ailures s tep d, chang e 320Vdc to 250Vdc. Chapter 4 Manual Changes: On Pag e 74 In Pow er Mesh and In pu[...]

125 B Blank Front Pane l Option 001 Introduction This appendi x describes t he blank front pan el option (Opt ion 001) for th e Agi lent 6030A /31A/32A power s upplies . Option 001 is desig ned for appli cations in wh ich fron t panel operation and m onitoring are unnece ssary. It has no front-p anel controls an d indicators except for th e LINE sw[...]

126 Chapter 3 Manual Changes: Replace Figure 3-1 w ith the figure on the next page. SA Tables 3-5 thr ough 3-7 do no t apply to Option 001 unit s. Chapter 5 and 6 Manual Changes: On Pag e 94 under A3 F ront Panel Board, t he only part that applies to th e Option 001 un it is R72, t he OVP-adjus t potenti omete r. Chang e R72 from 2100-1775 to 2100-[...]

127 Figure 3-1. Troubleshooting Isolation (option 001)[...]

129 C A gilen t 6030A T est Record Performance T est Record - Agilent 6030A POWER SUPPL Y (Page 1 of 2) Test Facility : __________________________________________ Report No.__________________________________________ __________________________________________ Date_______________________________________________ _______________________________________[...]

130 Performance T est Record - Agilent 6030A POWER SUPPL Y (Page 2 of 2) MODEL Agil ent 6030A Report No.______________ Date_____________________ Page No. Test Descript ion M in i mum S p ec . R e su lt s * Max im um Spec. Measurement Uncertainty Constant Vo ltage Tests 23 Voltage Program m ing and Readback Low Voltage (0.500V) Front Panel Display G[...]

131 D A gilen t 6031A T est Record Performance T est Record - Agilent 6031A POWER SUPPL Y (Page 1 of 2) Test Facility : __________________________________________ Report No.__________________________________________ __________________________________________ Date_______________________________________________ _______________________________________[...]

132 Performance T est Record - Agilent 6031A POWER SUPPL Y (Page 2 of 2) MODEL Agil ent 6031A Report No.______________ Date_____________________ Page No. Test Descript ion M in i mum S p ec . R e su lt s * Max im um Spec. Measurement Uncertainty Constant Vo ltage Tests 23 Voltage Program m ing and Readback Low Voltage (0.10V) Front Panel Display GP[...]

133 E A gilen t 6032A T est Record Performance T est Record - Agilent 6032A POWER SUPPL Y (Page 1 of 2) Test Facility : __________________________________________ Report No.__________________________________________ __________________________________________ Date_______________________________________________ _______________________________________[...]

134 Performance T est Record - Agilent 6032A POWER SUPPL Y (Page 2 of 2) MODEL Agil ent 6032A Report No.______________ Date_____________________ Page No. Test Descript ion M in i mum S p ec . R e su lt s * Max im um Spec. Measurement Uncertainty Constant Vo ltage Tests 23 Voltage Program m ing and Readback Low Voltage (0.090V) Front Panel Display G[...]

135 F A gilen t 6035A T est Record Performance T est Record - Agilent 6035A POWER SUPPL Y (Page 1 of 2) Test Facility : __________________________________________ Report No.__________________________________________ __________________________________________ Date_______________________________________________ _______________________________________[...]

136 Performance T est Record - Agilent 6035A POWER SUPPL Y (Page 2 of 2) MODEL Agil ent 6035A Report No.______________ Date_____________________ Page No. Test Descript ion M in i mum S p ec . R e su lt s * Max im um Spec. Measurement Uncertainty Constant Vo ltage Tests 23 Voltage Program m ing and Readback Low Voltage (1.00V) Front Panel Display GP[...]

137 G Manual Backdating This section describes changes that mu st be made to the manual so that it applies to instrum ents with serial numbers low er than those listed on th e title page. Look in the follow ing table for the serial n umber of y our instrum ent, and m ake only those changes listed for y our instrum ent. Note that for some ch anges y[...]

138 CHANGE 1: Under A 1 Main Board, chan ge R45 to 82.5k p/n 0757- 0563. CHANGE 2: Under A8 GPIB Board. Add: R 100 p/n 0698-4037. U17 p/n 1820- 2549 Delete : C67-70 0.01u F 10%, p/n 0160- 4832, qty 4. C71,73 2200pF 10%, p/ n 0160-4830, qty 2. L1 chok e, p/n 9170-1680. L2-4 core- shield bead, p/ n 9170-1454, qty 3. : Q1 trans istor 2N4917, p/n 1853-[...]

139 CHANGE 12: Under A 1 Main Board, *********** Fo r M o de l 6031A only *********** Chan ge C23 an d C28 to .047uF A gilent p/n 0160- 5895. Add C 21 and C24, .047uF Agi lent p/n 0160-5895. Add R 21 and R22, 1 ohm p/n 0699-0208. *********** Fo r M o de l 6032A only *********** Chan ge C20 an d C22 to .047uF A gilent p/n 0160- 5895. Add C 21 and C2[...]