Instruction/ maintenance manual of the product E3617A Agilent Technologies
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Agilent E361xA 60W B ENCH SER IES DC POWER SUPPLIE S OPERA TING AN D SERVICE MANUAL FOR MODELS: Agilent E3614A Agilent E3615A Agilent E3616A Agilent E3617A Manual Pa rt No.
1-2 SA FETY SUMMA R Y The following gener al safety precautions m ust be observ ed during all phases of operat ion, service, and repair of this ins trumen t. Failure to c omply with these precaut ions or with s pecific warnings elsewher e in this manual violates sa fety standards of design , manufactur e, and int ended use of t he instrument .
1-3 T able of Contents SAFETY SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4 GENERAL INFORMA TION INTROD UCTION This manual describes all models in the Agilent E361xA 60W Bench Power Supply family and unless stated otherwise, t he information in this manual applies t o all models.
1-5 b e g rounded or the power suppl y can be operated float- in g at up to a maximum of 240 V olts o f f g round. T otal out- put voltage to g round must not exceed 240 Vdc. LINE FUSE Line V oltage Fuse Agilent Part No. 100/ 1 15 V ac 2.0 A T 2 1 10-0702 230 V ac 1.
1-6 T able 1. Specifications and Operati n g Characteristics (Cont’d) *REMOTE PROGRAMMING SPEED Maximum time required for output volta g e to chan g e from initial value to within a tolerance band (0.1%) of the new l y pro g rammed value followin g the onset of a step chan g e in the pro g rammin g input volta g e.
1-7 e. Replace th e cover and mark the sup ply clearly wi th a t ag or label ind icating the co rrect line voltage and fuse th at is in use. Figure 2. Line V ol tage Selecto r (set for 1 15 V ac) Power Cord T o protect oper ating personnel, the instrument should be grounded.
1-8 that the current limit value can be set from zero to maximum rated value. OPERA TING MODES The settin g of the rear panel switch determines the operatin g modes of the power suppl y .
1-9 REMOTE OPERA TING MODES Remote operatin g modes discussed below are remote volta g e sensin g and remote volta g e pro g rammin g . Y ou can set up the unit for remote operatin g modes b y chan g in g the settin g s of the rear panel switch and connectin g the leads from the rear panel termi- nals to the load or the external volta g e.
1-10 pl y above 100% rated output. Limit y our pro g rammin g volta g e to 10 Vdc. Remote Pro g rammin g Connections. Remote pro g rammin g requires chan g in g settin g s of the switch and connectin g external volta g es to + and - terminals of "CV" or "CC" on the rear panel.
1-11 Settin g V olta g e and Current. T urn the slave unit's CURRENT control full y clockwise. Adjust the master unit's controls to set the desired output volta g e and current. The master suppl y operates in a completel y normal fashion and ma y be set up for either con- stant volta g e or constant current operation as required.
1-12 AUTO-SERIES OPERA TION Auto-series operation permits equal or proportional volta g e sharin g , and allows control of output volta g e from one master unit. The volta g e of the slaves is determined b y the settin g of the front panel VOL T AGE control on the master and volta g e divider resistor .
1-13 Remote Sensin g . T o remote sense with auto-series operation, set SENSE switch of the master unit and set SENSE switch of the slave unit to remote.
1-14 LOAD CONSIDERA TIONS This section provides information on operatin g y our suppl y with various t y pes of loads connected to its output. PULSE LOADING The power suppl y will automaticall y cross over from constant- volta g e to constant current operation in response to an increase (over the preset limit) in the output current.
A-1 SERVICE INFORMA TION Figure A -1. Block D iagram PRINCIPLES OF OPE R A TION (Block Diagram Overview ) Throughout t his discuss ion, refer to bot h the block d iagram of Figure A-1 and t he schematic diagrams at the rear of the manual.
A-2 series pass transistors. Whenever the output volta g e is below the slopin g V1 line, the control circuit inhibits four SCRs and the input capacitors char g e to a volta g e determined b y N1. Fi g ure A-2 indicates the windin g s that are connected as a result of the other volta g e decisions.
A-3 a . Perform turn-on checkout procedure g iven in pa g e 1-7. b . Perform the CV and CC Load Re g ulation perfor- mance tests g iven in the followin g para g raphs respectivel y . PERFORMANCE TESTS The followin g para g raphs provide test procedures for verif y- ing the power suppl y 's compliance with the specifications of T able 1.
A-4 CONST ANT VOL T AGE (CV) TESTS CV Setup. For all CV tests set the output current at full rated output to assure CV operation. The onset of constant current can cause a drop in output volta g e, increased ripple, and other performance chan g es not properl y ascribed to the con- stant volta g e operation of the suppl y .
A-5 Fi g ure A-5. Load T ransient Response Time W aveform P ARD(Ripple and Noise) Definition: P ARD is the Periodic and Random Deviation of the dc output volta g e from its avera g e value, over a specified bandwidth and with all other parameters maintained constant.
A-6 a. Connect the test equipment as shown in Fi g ure A-7. b. T urn the suppl y 's power on and turn CURRENT con- trol full y clockwise. c. T urn up output volta g e to the full rated value. Check that the suppl y 's CV indicator remains li g hted.
A-7 e. Record output volta g e across Rs and convert it to current b y dividin g this volta g e b y Rs. f. Adjust autotransformer to the hi g h line volta g e (127 V ac for nominal 1 15 V ac, 1 10 V ac for nominal 100 V ac, and 253 V ac for nominal 230 V ac).
A-8 Ammeter and CC Set Calibration T o calibrate ammeter and CC set, proceed as follows: a. Connect test setup on Fi g ure A-9. b. T urn VOL T AGE and CURRENT control full y clock- wise. c. T urn on the suppl y and to calibrate ammeter adjust R5 on the displa y board until front panel AMPS dis- pla y reads exactl y DVM value divided b y Rs.
A-9 After the trouble has been isolated to one of the feedback loops, troubleshootin g can proceed as described in T a bles A- 4, A-5, or A-6. Series Re g ulatin g Feedback Loop. When troubleshootin g the series re g ulatin g loop, it is useful to open the loop since measurements made an y where within a closed loop ma y appear abnormal.
A-10 SYMPTOM CHECKS AND PROBABLE CAUSES Poor Load Re g ulation (Constant V olta g e) a. Refer to "Measurements T echniques" para g raph. b. Check +10 V reference volta g e. c. Ensure that the suppl y is not g oin g into current limit. Poor Load Re g ulation (Constant Current) a.
A-11 STEP ACTION RESPONSE PROBABLE CAUSE 4 Check volta g e from pin 13 to pin 12 of U9. a. Measured volta g e is positive. b. Measured volta g e is ne g ative. a. Check U9A is defective. b. Check U10 and U9D is defective. Check R85 is open. 5 Check volta g e from pin 6 to pin 5 of U9.
A-12 REPL A CEA B LE P A R TS IN TRO DU CTI ON This section contains informat ion for ordering replacement parts. T able A-10 lists parts by reference designators and pro- vides the following information: a. Reference designat ors. Refer to T able A-8.
Table A-10. Replaceab le P arts List Reference Designator Agilen Part Number Q'ty Description Model Mfr. P/N Mfr. Code E3614A 1 60W BENCH POWER SUPPLY - E3614A MODEL E3615A 1 60W BENCH POWER SUPP.
Table A-10. Replaceab le P arts List (Con t'd) Reference Designator Agilent Part Number Q'ty Description Model Mfr. P/N Mfr. Code C18,21,24,27 0160-7077 4 CAP-FXD .
Table A-10. Replaceab le P arts List (Con t'd) Reference Designator Agilent Part Number Q'ty Description Model Mfr. P/N Mfr. Code R24,26,27,37,38, 64,88,117,120 0757-0442 9 RESISTOR 10K +-1% .125W TF TC=0+-100 ALL 28480 R25,30,33 0698-8824 3 RESISTOR 562K +-1% .
Table A-10. Replaceab le P arts List (Con t'd) Reference Designator Agilent Part Number Q'ty Description Model Mfr. P/N Mfr. Code R62 0698-8826 1 RESISTOR 825K +-1% .125W TF TC=0+-100 17 28480 R63 0698-8827 1 RESISTOR 1M +-1% .125W TF TC=0+-100 ALL 28480 R65 0757-0274 1 RESISTOR 1.
Table A-10. Replaceab le P arts List (Con t'd) Reference Designator Agilent Part Number Q'ty Description Model Mfr. P/N Mfr. Code R115 0757-0463 1 RESISTOR 82.5K +-1% .125W TF TC=0+-100 15 28480 R115 0757-0462 1 RESISTOR 75K +-1% .125W TF TC=0+-100 16 28480 R115 0757-0461 1 RESISTOR 68.
Table A-10. Replaceab le P arts List (Con t'd) Reference Designator Agilent Part Number Q'ty Description Model Mfr. P/N Mfr. Code CR21,22,23,24,25, 26,27,28,29,30 1901-0033 10 DIODE-GEN PRP 180V 200MA DO-35 ALL 1N645 27014 VR1,2,3 1902-0579 3 DIODE-ZNR 5.
Table A-11. Component Value Component Model E3614A E3615A E3616A E3617A C2 1000UF 25V +-20% AL-ELECTLT 470UF 50V +-20% AL-ELECTLT 330UF 50V +-20% AL-ELECTLT 220UF 100V +-20% AL-ELECTLT C7,8 39000UF 25V +-20% AL-ELECTLT 12000UF 63V +-20% AL-ELECTLT 5600UF 100V +-20% AL-ELECTLT 2700UF 160V +-20% AL-ELECTLT C11,16,17,25,26 0.
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Manual Supple ment Suppleme nt Agile nt Part Number : 5 959-53 36, Edition 4 Supple ment Print Date : 14 April, 200 0 This supplement update s the following document: Agilen t E361XA 60W Series Lab Bench DC Power Supplie s Manual Agile nt Part Number : 5959-53 10 What is a manual suppleme nt? A manual suppleme nt keeps your manu al up-to-date.
1-10-1 Voltage and Current Programming of the E3614A/15A/16A/ 17A with a Voltage and Current Source Remote analog voltage programming permits control of the regulated output voltage or current by means of a remotely varied voltage or current. The stability of the programming voltages directly affects the stability of the output.
1-10-2 Programming V oltage Common to the Minus Output Figure 2 Set the CV switch down on the rear panel, and all others up. V in = 1/A x V out V out = A x V in Where V out is the power supply output voltage. V in is the programming voltage. A is the gain factor and the values of each model are as below .
1-10-3 Programming V oltage Common to the Minus Output Figure 4 The output will always be the same or less than the programming voltage. The M/S2 switch must be in the down position.
1-10-4 Constant Current Mode The E3614A/15A/16A/17A may be programmed for constant current with an analog voltage or current. Constant current with analog voltage programming can only be achieved with a voltage source that is common with the positive output terminal.
1-10-5 Figure 6 Set the CC switch down, and all others up. I in = 1/A x I out I out = A x V in Where I out is the power supply output current in amps. I in is the programming current in µ amps. A is the gain. Programming currents can be increased by adding a resistor across the CC+ and CC-.
1-10-6 Voltage and Current Programming of the E3614A/15A/16A/17A with Resistors Remote programming with resistors permits control of the regulated output or current by means of a remotely varied resistor . The sum of the resistance of external programming resistors (R1 + R2) should be more than 40 kohm.
1-10-7 Remote Resistor Programming, Constant Current Figure 8 Set the CC switch down on the rear panel, and all others up. I out = A x [V REF x {R/(R + R2 + 100)}] Where I out is the power supply output current. A is the gain factor and the values of each model are as below .
CERTIFICATION Agilent T ec hnologies c ertifies that th is produ ct m et its published spe cifications at tim e of shipm ent f rom t he f actor y . Agilent T echno logies furt her c ert ifies th at it.
DECLARATION OF CONFORMITY According to ISO/IEC Guide 22 and CEN/CENELEC EN 45014 Manufacturer’s Name: Manufacturer’s Address: Agilent Technologies, Inc.
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If you already are a holder of Agilent Technologies E3617A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Agilent Technologies E3617A.
However, one of the most important roles played by the user manual is to help in solving problems with Agilent Technologies E3617A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Agilent Technologies E3617A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
