Manuel d'utilisation / d'entretien du produit E3630A du fabricant Agilent Technologies
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DUA L OUTPUT POWER SUPP L Y A gi lent MO DEL E3630A OPERA TING A ND SER VICE MA NUAL FOR INSTRUMENTS WITH SERIA L NUMBERS KR85014528 A ND A BOVE For instruments with Serial Numbers above KR85014528, a change page may be included .
1-2 SA FETY SUMMARY The following general safety prec autions must be observed during all phases of oper ation, service, and repair of this instrumen t. Failure to com ply with thes e precautions or with spec ific warnings elsewhere in this manual v iolates safety standards of des ign , manufacture, and intended use of the inst rument.
1-3 T able of Contents SA FETY SUMM A RY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 GENERA L INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4 GENERAL INFORMATION IN TRO DU CTI ON This section contains general i nformation concerning the E3630A triple output pow er supply. Included are safety con- siderations, safety and EM C requirements, inst rument and manual ident ification, option and ac cessory inf ormation, instrument descript ion, and specifications.
1-5 mode. In this mode the voltage of the negative output can be set lower than that of the positive output. T he tracking ratio control allows the negative supply 's output to be set to any va lue between a max imum that is within ±5% of the positive supply 's output and a minimum that is less than 0.
1-6 INST A LLA TION INITIA L INSPE CTION Before s hipment, this instrument w as inspected and found t o be free of mecha nical and e lectrical defects. As soon as the instrument is unpacked, inspect for any dam age that may have occurred in t ransit. Sav e all packing m aterials until the inspection is com pleted.
1-7 Before applying power to the supply , check the label on the heat sink t o mak e certain that the supply's line voltage option agrees wit h the line voltage to be used . If the opti on does not correspond to your line voltage, refer to paragraph "LI NE VOL T AG E OPTION CONVERSIO N" in the service section before applying power.
1-8 Figure 3. Current Limit Characteristic of the 6V Supply this region. If the line voltage is maintained in the up per end of the input voltage range, howev er , the supply pr obably w ill operate w.
1-9 Figure 4. Rev ers e Cur rent L oading S olution.
A-1 SERVICE INFORMA TION Figure A- 1. Blo ck Di agram PRINCIPLES OF OP ERA TION (Blo ck Diagr am Over view) This sect ion presents t he principles of operation of t he E3630A Triple Out put Power S upply . T hroughout this discus- sion, refer to bot h the block d iagram of Figure A-1 and the schematic diagrams at the rear of the manual.
A-2 put is enclosed by a heavy line in Figure 3 of the operating section. If the operating point reaches the diagonal current limit line, a dec rease in load r esistance moves the op erating point down the line, reducing the out put voltage and current .
A-3 Operation V erification T ests The followin g tests assure that the power suppl y is per- formin g properl y . The y do not, however , check all the speci- fied parameters tested in the complete performance test described below . Proceed as follows: a.
A-4 Output Current Measurement. For accurate output current measurements, a current sampling resistor should be inserted between the load and the output of the supply . T o simplify grounding problems, one end of this sampli ng resistor shoul d be connected to the same output terminal of the supply which w ill be shorted to ground.
A-5 Current Limit k. Disconnect all loads from the suppl y . l. Connect the test setup shown in Fi g ure A-5 to the +20- volt output. Substitute a short for R L and leave the load circuit switch open. m. Set the volta g e of the ± 20V supplies to 20 volts.
A-6 Peak-to-Peak Measurement The peak-t o-peak measurem ent is particularly i mportant for applications where noise spikes could be detrimental to a sensitive load, such as logic circuitry. T o measure the ripple and noise of the peak-to-peak value on each output supply output: a.
A-7 St ability (Drift) Definiti on: The change in output voltage (dc to 20 Hz) for the first 8 hours following a 30-minute w arm-up period with con- stant input line voltage, constant load resistance and constant ambient tem perature. T o me asure the stability : a.
A-8 T a ble A -3 . Ini tial T robles hooting Procedu re STE P ACTION RESPONS E NEXT A CT ION 1 Check output voltage of +20V supply . a. Normal b. Zero volts c. Output voltage low er or higher than rat ing a. Proceed to step (2) . b. Check ac line fuse (F1).
A-9 Low outpu t voltage (lower t han rating) 1. Measure voltage at t he base of Q5. 2. Eliminate current limit circuit as a source of trouble by disc onnecting anode of CR1 1. 3. Measure voltage at pin 3 of U6. a. Measured voltage is less than 0 vol t.
A-10 T able A-7. +6 V Su pply T r oubl eshooti ng SYMPTOM STEP - A CTION RE SPONSE P ROBA BLE CA USE The +20V supply must operat e properly before tr oubleshooting the -20V supply . High output voltage (higher than rat ing) 1. Atte mpt to turn of f Q1 by shorting emitt er-to-base of Q1.
A-11 A DJ USTMENT A ND CA LIBR A TION Current Limit Adjustme nt +6V S upply. T o adjust the current limit circuit in t he +6V sup- ply , proceed as follows: a. Check the setting of the current limit by performing steps (p) and (q) on page A-5. (Be sure to set the output voltage to 6 volts.
A-12 REPL A C EA BLE P A RT S IN TRO DU CTI ON This section contains informat ion for ordering replacement parts. T able A-12 lists parts by reference designators and pro- vides the following information: a. Reference designators. Refer to T able A-10.
REFERE NCE DESIGNATION PART NUMBER Q'T Y DESCRIPTION MFR.
REFERE NCE DESIGNATION PART NUMBER Q'TY DESCRIPTION MFR.
REFERE NCE DESIGNATION PART NUMBER Q'TY DESCRIPTION MFR.
REFERE NCE DESIGNATION PART NUMBER Q'TY DESCRIPTION MFR.
CERTIFICATION Agilent T ec hnologies c ertifies that this pr oduct m et its published s pecificat ions at time of sh ipmen t fro m t he fa ctor y . Agilent T ech nologies furt her cert ifies that its .
DECLA RA TION O F CONFORMITY accordi ng to ISO/IEC Guid e 22 and EN 4 5014 Manufactu rer’s Name: Agilent Techno logies, In c. Manufactu rer’s Address: 3 45-15, Kasa n-dong, Kum chon-ku, Seoul 15 3.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Agilent Technologies E3630A c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Agilent Technologies E3630A - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Agilent Technologies E3630A, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Agilent Technologies E3630A va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Agilent Technologies E3630A, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Agilent Technologies E3630A.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Agilent Technologies E3630A. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Agilent Technologies E3630A ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
