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Keysight E3620A



Dual Output Power Supply

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Operating and

Service Manual

Содержание e3620a

Страница 1: ...Keysight E3620A Dual Output Power Supply Operating and Service Manual ...

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Страница 4: ...Keysight s product price only if Customer pays Key sight international prices defined as destination local currency price or U S or Geneva Export price If Keysight is unable within a reasonable time to repair or replace any product to condition as warranted the Customer shall be entitled to a refund of the purchase price upon return of the product to Keysight The warranty period begins on the date...

Страница 5: ...erous voltages may exist even with the power cable removed To avoid injuries always disconnect power dis charge circuits and remove external voltage sources before touching components DO NOT SERVICE OR ADJUST ALONE Do not attempt internal service or adjustment unless another person capable of rendering first aid and resuscitation is present SAFETY SYMBOLS Caution risk of danger refer to this manua...

Страница 6: ...ISM est confomre a la norme NMB 001 du Canada This instrument complies with the WEEE Directive 2002 96 EC marking requirement This affixed product label indicates that you must not discard this electrical or electronic product in domestic household waste The CSA mark is a registered trademark of the Canadian Standards Association This symbol indicates the time period during which no hazardous or t...

Страница 7: ... instrument is available on the Keysight Web site You can search for the DoC by its product model or description at the web address below http www keysight com go conformity If you are unable to search for the respective DoC please contact your local Keysight representative ...

Страница 8: ...utline Diagram 1 10 Rack Mounting 1 10 INPUT POWER REQUIREMENTS 1 10 Power Cable 1 10 OPERATING INSTRUCTIONS 1 10 INTRODUCTION 1 10 CONTROLS 1 10 Line Switch 1 10 Voltage and Current Metering 1 10 Voltage Controls 1 10 TURN ON CHECKOUT PROCEDURE 1 11 OPERATION 1 11 Overload Protection Circuits 1 11 Operation Beyond Rated Output 1 11 Connecting Load 1 11 Series Operation 1 11 Parallel Operation 1 1...

Страница 9: ...HOOTING A 5 ADJUSTMENT AND CALIBRATION A 5 COMPONENT LOCATOR DIAGRAMS A 7 MAIN BOARD TOP A 7 MAIN BOARD BOTTOM A 8 DISPLAY CONTROLLER TOP A 9 DISPLAY CONTROLLER BOTTOM A 10 7 SEGMENT TOP A 11 7 SEGMENT BOTTOM A 12 ...

Страница 10: ...ply with the following safety and EMC Electromagnetic Compatibility requirements Safety IEC 61010 1 2010 EN 61010 1 2010 CAN CSA C22 2 No 61010 1 12 EMC IEC 61326 1 2005 EN61326 1 2006 CISPR11 2003 EN55011 2007 Canada ICES NMB 001 Issue 4 June 2006 Australia New Zealand AS NZS CISPR 11 2004 INSTRUMENT AND MANUAL IDENTIFICATION A serial number identifies your power supply The serial num ber encodes...

Страница 11: ...OT During turn on or turn off of AC power output plus overshoot will not exceed 1 V if the output control is set for less than 1 V If the control is set for 1 V or higher there is no overshoot GENERAL SPECIFICATIONS AC INPUT 0EM 115 VAC 10 47 63 Hz 200 VA 130 W 0E9 100 VAC 10 47 63 Hz 200 VA 130 W 0E3 230 VAC 10 47 63 Hz 200 VA 130 W DIMENSIONS 212 3 mmW x 88 1 mmH x 345 4 mmD 8 4 inW x 3 5 inH x ...

Страница 12: ...igure 1 Outline Diagram OPERATING INSTRUCTIONS INTRODUCTION This section describes the operating controls and indicators turn on checkout procedures and other operating consider ations for the Model E3620A Dual Output Power Supply Before applying power to the supply check the label on the heat sink to make certain that the supply s line voltage option agrees with the line voltage to be used If the...

Страница 13: ...g that is when the overload is removed or corrected the output voltage is automatically restored to the previously set value Operation Beyond Rated Output The supply may be able to provide voltages and currents greater than its rated maximum outputs if the line voltage is at or above its nominal value Operation can be extended up to 5 over the rated output without damage to the supply but performa...

Страница 14: ...load resistor so that the supply delivers current through the entire operating cycle of the load devices Figure 3 Reverse Current Loading Solution OUTPUT CAPACITANCE An internal capacitor across the output terminals of the supply helps to supply high current pulses of short duration during constant voltage operation Any capacitance added externally will improve the pulse current capability but wil...

Страница 15: ...ion Conversion To convert the supply from one line voltage option to another the following three steps are necessary a After making certain that the line cord is disconnected from a source of power remove the top cover from the supply and set the two sections of the line voltage selec tor switch for the desired line voltage see Figure A 1 b Check the rating of the installed fuse and replace it wit...

Страница 16: ...t eliminates the need for connecting resistors or rheostats in parallel to handle the power and it is much more stable than a carbon pile load It is easier to switch between load conditions as required for the load regu lation and load transient response tests Output Current Measurement For accurate output current measurements a current sampling resistor should be inserted between the load and the...

Страница 17: ...mV of the reading in step c e Repeat steps a through d for the V2 supply Figure A 5 Basic Test Setup Line Regulation Source Effect Definition The immediate change EOUT in the static value of DC output voltage resulting from a change in AC input voltage from a minimum to a maximum value 10 of nominal voltage To check the line regulation a Connect a variable autotransformer between the input power s...

Страница 18: ...tage following a change from full load to half load or half load to full load To measure the load transient response time a Connect the test equipment across the output of the V1 supply as shown in Figure A 5 but replace the DVM with the oscilloscope Operate the electronic load in constant current mode b Turn on the supply and push the V1 METER switch in c Turn up V1 output voltage to 25 0 volts d...

Страница 19: ...r wire clippings in contact with circuit board conductors before replacing the fuse The rating of the correct replace ment fuse depends on the line voltage option of the instru ment for Option OE3 use a slow blow 1 amp fuse and standard and Option OE9 use a slow blow 2 amp fuse ADJUSTMENT AND CALIBRATION Current Limit Adjustment To adjust the current limit circuit in the V1 or V2 supply pro ceed a...

Страница 20: ...put voltage to 15 00 V and then adjust R81 on the main board until front panel VOLTS display reads exactly DVM value Ammeters To calibrate ammeter for V1 and V2 supplies proceed as follows a Connect the test setup shown in Figure A 4 to the output of the V1 supply Substitute a short for RL and leave load circuit switch open b Push V1 METER switch in and turn V1 VOLTAGE control fully clockwise c Cl...

Страница 21: ...A 7 COMPONENT LOCATOR DIAGRAMS MAIN BOARD TOP ...

Страница 22: ...A 8 MAIN BOARD BOTTOM ...

Страница 23: ...A 9 DISPLAY CONTROLLER TOP ...

Страница 24: ...A 10 DISPLAY CONTROLLER BOTTOM ...

Страница 25: ...A 11 7 SEGMENT TOP ...

Страница 26: ...A 12 7 SEGMENT BOTTOM ...

Страница 27: ...547 2111 Japan tel 81 426 56 7832 fax 81 426 56 7840 Korea tel 080 769 0800 fax 080 769 0900 Latin America tel 305 269 7500 Taiwan tel 0800 047 866 fax 0800 286 331 Other Asia Pacific Countries tel 65 6375 8100 fax 65 6755 0042 Or visit the Keysight World Wide Web at www keysight com find assist Product specifications and descriptions in this document are subject to change without notice Always re...

Страница 28: ...This information is subject to change without notice Keysight Technologies 2002 2014 Edition 11 November 2014 E3620 90001 E3620 90001 www keysight com ...

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