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PCB 158R4 - LOW VOLTAGE POWER SUPPLY

Summary of Contents for AV-1023-C

Page 1: ...V T E C H E L E C T R O S Y S T E M S L T D N A N O S E C O N D W A V E F O R M E L E C T R O N I C S S I N C E 1 9 7 5 info avtechpulse com http www avtechpulse com Tel 888 670 8729 USA Canada or 1 6...

Page 2: ...ace said defective item This warranty does not apply to units which have been dissembled modified or subjected to conditions exceeding the applicable specifications or ratings This warranty is the ext...

Page 3: ...ONNECTION TO THE POWER SUPPLY 10 PROTECTION FROM ELECTRIC SHOCKs 11 ENVIRONMENTAL CONDITIONS 12 FUSES 13 AC FUSE REPLACEMENT 13 DC FUSE REPLACEMENT 14 FUSE RATINGS 14 FRONT PANEL CONTROLS 15 REAR PANE...

Page 4: ...MAIN BOARD OSCILLATOR 29 PCB 134B MAIN BOARD TIMING A 30 PCB 134B MAIN BOARD TIMING B 31 PCB 134B MAIN BOARD AMPLITUDE A 32 PCB 134B MAIN BOARD AMPLITUDE B 33 PCB 134B MAIN BOARD FRONT PANEL 34 PERFO...

Page 5: ...riable from 1 Hz to 10 MHz The delays and pulse widths are variable up to 500 ms The amplitudes are variable up to 10V Rise and fall times less than 10 ns 20 80 The two main outputs A and B have all o...

Page 6: ...pe aberration 3 at amplitudes of 300 mV with outputs terminated in 50 Propagation delay 80 ns to 0 5 sec Ext trig in to pulse out Trigger required Ext trig mode 5 Volts 40 ns TTL Trig input impedance...

Page 7: ...g Also check that your load is adequately shielded It may be necessary to enclose the load in a metal enclosure If any of the connectors on the instrument are unused they should be covered with shield...

Page 8: ...tion of conformity is issued under the sole responsibility of Avtech Electrosystems Ltd Specifically products manufactured do not contain the substances listed in the table below in concentrations gre...

Page 9: ...the representative to determine who has responsibility for WEEE compliance Normally such responsibilities with lie with the representative unless other arrangements under Article 9 have been made Requ...

Page 10: ...NNECTION TO THE POWER SUPPLY An IEC 320 three pronged recessed male socket is provided on the back panel for AC power connection to the instrument One end of the detachable power cord that is supplied...

Page 11: ...erators are prevented access and or are insulated from every connection point In some cases connections must be exposed to potential human contact Operators must be trained to protect themselves from...

Page 12: ...ndoor use 2 altitude up to 2 000 m 3 temperature 5 C to 40 C 4 maximum relative humidity 80 for temperatures up to 31 C decreasing linearly to 50 relative humidity at 40 C 5 Mains supply voltage fluct...

Page 13: ...the fuses on the rear panel are shown in the figure below AC FUSE REPLACEMENT To physically access the AC fuses the power cord must be detached from the rear panel of the instrument The fuse drawer ma...

Page 14: ...s Nominal Mains Voltage Rating Case Size Recommended Replacement Part Littelfuse Part Number Digi Key Stock Number 1 2 AC 100 240V 0 5A 250V Time Delay 5 20 mm 0218 500HXP F2416 ND 3 DC N A 1 0A 250V...

Page 15: ...onds after which the instrument will attempt to re enable the output i e light green for about 1 second If the overload condition persists the output will be disabled again i e light yellow for anothe...

Page 16: ...nel B 9 PULSE DELAY B inner knob This varies the channel B delay within the selected range 10 PULSE WIDTH A outer knob This selects one of the seven pulse width ranges for channel A 0 05 ms 0 5 ms 0 5...

Page 17: ...connector provides the sum of channels A and B instead 21 B B A switch In the B position the rightmost OUT connector item 24 outputs channel B In the B A position this connector provides the sum of ch...

Page 18: ...detachable power cord that is supplied with the instrument plugs into this socket 2 AC FUSE DRAWER The two fuses that protect the AC input are located in this drawer Please see the FUSES section of t...

Page 19: ...the main signal for right OUT connector The pulse width amplitude and offset are all adjustable The maximum output voltage is 10V This voltage is reduced by a factor of two if the output impedance is...

Page 20: ...can be added together and the two output connectors can be used to supply two of A B or A B B A This allows complex waveforms to be constructed Some examples are shown below 20 SYNC OUT generated by t...

Page 21: ...he output impedance can set to be 1 or 50 The 50 position is useful for driving 50 transmission lines since this output impedance will provide back matching which suppresses transmission line reflecti...

Page 22: ...to properly terminate the transmission line USE LOW INDUCTANCE LOADS Lenz s Law predicts that for an inductive voltage spike will be generated when the current through an inductance changes Specifical...

Page 23: ...contact Avtech info avtechpulse com to arrange for the instrument to be returned to the factory for repair Service is to be performed solely by qualified service personnel Caution High voltages are pr...

Page 24: ...es may require replacement All fuses can be accessed from the rear panel See the FUSES section for details CLEANING If desired the interior of the instrument may be cleaned using compressed air to dis...

Page 25: ...08 T OENCO DER T OLCD 104D BD2 PCB104DKEYPADBO ARD BUNITSONLY Ch a ssisg ro u ndpo st G 1 G 2 B1 RED G 4 G 3 L N G X2 CORCO M6EGG 1 2POWERENTRY M O DULE 1 1b 1a 2 2b 2a X1 POWERSWITCHSW325 ND CWINDUST...

Page 26: ...PCB 158R4 LOW VOLTAGE POWER SUPPLY...

Page 27: ...D B ZOUT amplB amplB sch 15V 15V VCC GND TTL B 5 2V POL B SUM B SUM A ADD B ZOUT 15V 15V VCC GND 5 2V power power sch 15V 15V VCC GND 5 2V VCC 15V 15V 5 2V VCC 15V 15V VCC VCC VCC 15V 15V 5 2V VCC 15V...

Page 28: ...engineering pcb 134 1023 2002 ddb 134B pow er sch A V 1 02 3 CPO W E RS UP P LY 0 15V 15V VCC GND 5 2V 15V 15V 5 2V VCC C84 47uF 50V P5570 ND C88 47uF 50V P5570 ND C85 47uF 50V P5570 ND C87 47uF 50V...

Page 29: ...ED O N A V 1000 C OSCILLA TOR R2 9 1K 15V C29 0 1uF A 1 B 2 CLR 3 Cext 14 Rext Cext 15 Q 13 Q 4 U11A 74221 A 9 B 10 CLR 11 Cext 6 Rext Cext 7 Q 5 Q 12 U11B 74221 VCC C54 22pF VCC C48 22pF 6 7 5 Q4B M...

Page 30: ...2 5 K21 G5V 1 12VDC PWA7 6 10 1 9 2 5 K2 G5V 1 12VDC PWA8 R29 100 A 1 B 2 CLR 3 Cext 14 Rext Cext 15 Q 13 Q 4 U1A 74221 TRIG VCC R10 1 5K CCW W CW 1 2 3 R3 25KPOT VCC 6 10 1 9 2 5 K4 G5V 1 12VDC DA2 6...

Page 31: ...9 2 5 K37 G5V 1 12VDC PWB7 6 10 1 9 2 5 K24 G5V 1 12VDC PWB8 R68 100 A 1 B 2 CLR 3 Cext 14 Rext Cext 15 Q 13 Q 4 U10A 74221 TRIG VCC R62 1 5K CCW W CW 1 2 3 R91 25KPOT VCC 6 10 1 9 2 5 K25 G5V 1 12VD...

Page 32: ...7 100 R21 1K CCW W CW R27 2KPOT 5 2V VCC 0V 3V 5 2V VCC 6 10 1 9 2 5 K13 G5V 1 12VDC POL A R56 51 CCW W CW 1 2 3 R52 250OHMPEC POT 15V C49 0 1uF C42 0 1uF 15V 6 8 HI LO 3 2 7 4 5 1 U8 BUF634P R58 100...

Page 33: ...R19 1K CCW W CW R28 2KPOT 5 2V VCC 0V 3V 5 2V VCC 6 10 1 9 2 5 K12 G5V 1 12VDC POL B R57 51 CCW W CW 1 2 3 R53 250OHMPEC POT 15V C50 0 1uF C43 0 1uF 15V 6 8 HI LO 3 2 7 4 5 1 U9 BUF634P R59 100 15V C6...

Page 34: ...Hz SW7 MTA 810 6D WW NORM A COMPL A SW8 MTA 810 6D WW NORM B COMPL B SW1 MTA 810 6D WW INT EXT A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 WA SW10 DLYA 0 5 us 5us 50 us 500us 5ms 50 ms 0 5 sec A10 A9 A8 A7 A6 A5 A...

Page 35: ...PERFORMANCE CHECK SHEET 35...

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