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Avtech AVR-EB4-B, Instructions Manual, Page: 59 / 83

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Avtech AVR-EB4-B Instructions Manual Download Page 59

The four pockets are wired in parallel. Only one DUT may be installed at a time, or the 
resulting waveforms will be incorrect.

59

Summary of Contents for AVR-EB4-B

Page 1: ...01 A 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 o...

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: ...ION 12 VISUAL CHECK 12 POWER RATINGS 12 CONNECTION TO THE POWER SUPPLY 12 PROTECTION FROM ELECTRIC SHOCK 13 ENVIRONMENTAL CONDITIONS 14 FUSES 15 AC FUSE REPLACEMENT 15 DC FUSE REPLACEMENT 16 FUSE RATI...

Page 4: ...JIG 43 AVX TRR HPOST JIG 44 AVX TRR MELF MELF JIG 44 AVX TRR MELF CHIP LEVEL TESTS 46 AVX TRR STUD DO 4 AND DO 5 STUD PACKAGES 46 AVX TRR BTA TEST JIG 49 AVX TRR SDA TEST JIG 51 AVX TRR AR1 TEST JIG...

Page 5: ...IRING AVX TRR HPOST 76 TEST JIG WIRING AVX TRR SCHA AVX TRR MSB MELF 77 TEST JIG WIRING AVX TRR SCHA AVX TRR MSB STUD 78 TEST JIG WIRING AVX TRR BTA 79 TEST JIG WIRING AVX TRR ANB 80 TEST JIG WIRING A...

Page 6: ...able For additional information about the rationale behind the basic approach please see Avtech Technical Brief 15 A Comparison of Reverse Recovery Measurement Systems at http www avtechpulse com appn...

Page 7: ...4 B includes an internal trigger source but it can also be triggered or gated by an external source A front panel pushbutton can also be used to trigger the instrument The AVR EB4 B features front pan...

Page 8: ...quirements 100 240 Volts 50 60 Hz Dimensions H x W x D 100 mm x 430 mm x 375 mm 3 9 x 17 x 14 8 Chassis material cast aluminum frame and handles blue vinyl on aluminum cover plates Temperature range 5...

Page 9: ...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 10: ...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 11: ...9 have been made Requirements for WEEE compliance may include registration of products with local governments reporting of recycling activities to local governments and financing of recycling activiti...

Page 12: ...he FUSES section for information about the appropriate AC and DC fuses This instrument is an Installation Category II instrument intended for operation from a normal single phase supply CONNECTION TO...

Page 13: ...1 01 China GB 1002 1 2099 1 220V 50 Hz AC22 Qualtek 399012 01 PROTECTION FROM ELECTRIC SHOCK Operators of this instrument must be protected from electric shock at all times The owner must ensure that...

Page 14: ...rformed solely by qualified service personnel ENVIRONMENTAL CONDITIONS This instrument is intended for use under the following conditions 1 indoor use 2 altitude up to 2 000 m 3 temperature 5 C to 40...

Page 15: ...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 16: ...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 0 8A 250V Ti...

Page 17: ...utput disabled for about 5 seconds after which the instrument will attempt to re enable the output i e light green for abOUT1 second If the overload condition persists the output will be disabled agai...

Page 18: ...of ten If one of the adjustable numeric parameters is displayed and this parameter can be both positive or negative this changes the sign of the parameter EXTRA FINE This changes the step size of the...

Page 19: ...e the triggering of the instrument This input can be either active high or active low depending on the front panel settings or programming commands The instrument triggers normally when this input is...

Page 20: ...strument to be remotely controlled using the VXI 11 3 ssh secure shell telnet and http web protocols See the Programming Manual for B Instruments for more details 9 PULSE OUT CONNECTOR This BNC connec...

Page 21: ...2 20 us range The SYNC pulse is a fixed width TTL level reference pulse used to trigger oscilloscopes or other measurement systems When the delay is set to a positive value the SYNC pulse precedes th...

Page 22: ...ternal mode of the PULSE output can be varied with front panel controls or via the GPIB or RS 232 computer interfaces 22 SYNC OUT generated by the internal oscillator 100 ns FIXED Mainframe OUT DELAY...

Page 23: ...s set to not trigger at all These modes can be selected using the front panel trigger menu or by using the appropriate programming commands See the Programming Manual for B Instruments for more detail...

Page 24: ...loscope is used the input should be protected by adding attenuator on the input In the diagram above the supplied 50 Ohm feed through terminator is used to provide the required 50 Ohm resistance The t...

Page 25: ...The negative voltage AMP2 on the front panel display is related to the reverse diode current by IREVERSE AMP2 50 RDIODE REVERSE where RDIODE REVERSE is the effective resistance of the diode under rev...

Page 26: ...ctly on the test jig with the test jig disconnected to determine calibrated relationships if desired RC is provided by the user and can be calibrated as required INCORRECT ORIENTATION The instrument a...

Page 27: ...axial cabling should be used except when hard switching causes noticeable reflections In that case use longer cable lengths Example waveforms are included in the TYPICAL RESULTS section ACCESSIBLE VOL...

Page 28: ...igs AVX TRR MIX TEST JIG The AVX TRR MIX test jig accepts a range of through hole and axial devices using pin sockets and spring loaded pins It is intended for use with diodes in DO 41 TO 220 DO 204AR...

Page 29: ...rasitic inductance This jig will also accommodate a number of TO 3 configurations outlined below If the case is connected to the anode and the pin s are used for the cathode the arrangement shown belo...

Page 30: ...the case It provides the cathode connection The anode pin of interest must be inserted into this socket For dual diode devices rotate the TO 3 package so that the desired diode anode is inserted here...

Page 31: ...1A 600V DO 41 fast recovery rectifier With the amplitudes set to 100V and 200V and with the mainframe connected to the test jig using a 60 cm coaxial cable the following reverse recovery waveform is o...

Page 32: ...ransient so the 60 cm coaxial cable was used If the 5 m cable is used the measured recovery time will be too high as shown below 5 V div 1 A div 20 ns div 20 80 switching time shown S N 11713 5m cable...

Page 33: ...e test jig OUT terminal 5 V div 1 A div 20 ns div 20 80 switching time shown S N 11713 60 cm cable used The above waveform shows the transition from a forward current of 2A to a reverse current of 4A...

Page 34: ...In this case 73 3 ns was measured for 1A 2A versus 73 0 ns for 2A 4A 1N4004 RESULTS The generic 1N4004 is a very slow 1A 400V DO 41 fast recovery rectifier With the amplitudes set to 100V and 200V the...

Page 35: ...forward current of 2A to a reverse current of 4A The reverse transient duration exceeds 1 us under these conditions MUR8100E RESULTS The On Semiconductor MUR8100E is a 8A 1000V TO 220 ultrafast rectif...

Page 36: ...713 60 cm cable used The above waveform shows the transition from a forward current of 2A to a reverse current of 4A The reverse transient lasts for approximately 90 ns under these conditions For this...

Page 37: ...n diodes are optimized to provide a soft transient with a more gradual decay of the reverse current from its peak value to zero The fast switching time of the hard transient causes transmission line r...

Page 38: ...th the 60 cm cable the measured recovery time is nearly the same as before but the reflections overlap the transient In this case it is best to use the 5m to clearly separate the two effects recovery...

Page 39: ...led in the AVX TRR MIX test jig 5 V div 1 A div 20 ns div 20 80 switching time shown S N 11713 5m cable used The 5 m cable was used due to the presence of reflections on the output waveform Unlike mos...

Page 40: ...unchanged relative to the case when the forward current was 2A The CSD10120 datasheet says this is a majority carrier diode so there is no reverse recovery charge and the results above largely suppor...

Page 41: ...of 4A The reverse transient lasts for approximately 41 ns under these conditions and then ends rather abruptly causing reflections The 5m cable was used to ensure that the reflections occur well after...

Page 42: ...marked DUT on the test jig PCB Four fins guide the DUT into the correct position between two spring loaded test pins When the hinged lid is closed a fifth fin attached to the underside of the lid pres...

Page 43: ...pins Four replacement fins are included with each AVX TRR ANB for this reason The AVX TRR ANB is still available but the AVX TRR AXPOST or AVX TRR HPOST are recommended as superior replacements AVX TR...

Page 44: ...RR MELF accepts MELF Metal Electrode Leadless Face type SMT packages Certain customized variants including the AVX TRR SCHA and AVX TRR MSB MELF test jigs accept the MELF package as well These test ji...

Page 45: ...The next photo shows a MELF device installed between the two pins 45 A MELF packaged Device Under Test DUT...

Page 46: ...example of this arrangement is shown below AVX TRR STUD DO 4 AND DO 5 STUD PACKAGES Certain test jigs such as the AVX TRR STUD accept DO 4 AND DO 5 standard and reverse polarity stud packages This tes...

Page 47: ...n the other end This diode produced the following results tRR 341 9 ns 5 V div 1 A div 200 ns div 20 80 switching time shown S N 11713 60 cm cable used The photo below shows a reverse polarity DO 5 di...

Page 48: ...This diode produced the following results tRR 2 595 us 5 V div 1 A div 200 ns div 20 80 switching time shown S N 11713 60 cm cable used 48...

Page 49: ...BTA TEST JIG The AVX TRR BTA test jig is designed to accept the unusual package shown below The AVX TRR BTA test jig is shown below The DUT is installed by pulling back on the chrome knob as shown be...

Page 50: ...ont of the two fixed probe points as shown in the photo above Then slowly release the chrome knob allowing the spring loaded PCB to push the DUT into position against the two probe points as shown bel...

Page 51: ...o generate IF 2A and IR 4A the following results were obtained 5 V div 1 A div 100 ns div tRR at 25 of IR 356 ns S N 11910 60 cm cable used AVX TRR SDA TEST JIG The AVX TRR SDA is designed to accept T...

Page 52: ...e device pin sockets and spring pins are shown in greater detail below for the TO 5 52 TO 5 Anode Pin Socket TO 5 Cathode Pin Socket Clearance hole for unused TO 5 pin Clearance hole for unused TO 5 p...

Page 53: ...n the left and the cathode is on the right An example installation is shown below Two TO 3 configuration are possible one with the case connected to the anode and one with the case connected to the ca...

Page 54: ...wn below For the case anode configuration this layout is used 54 No connection for physical support of the TO 3 pin Pin socket for TO 3 Cathode pin Spring pin connects TO 3 case to Anode No connection...

Page 55: ...s allows testing of dual diode TO 3 packages by rotating the package to isolate the desired diode The Microsemi UTG8042 is a dual ultrafast rectifier in a TO 3 package with the cathodes connected to t...

Page 56: ...he AVX TRR AR1 test jig has been designed to accept a variety of axial and SQMELF packages It has been designed specifically to accept 1 Microsemi Type E axial packages used in the 1N5418 and other de...

Page 57: ...Then open the tan colored DUT socket by flipping forward the two black latches on the front edge of it 57...

Page 58: ...The two gold contact pins are visible in each pocket the device must be aligned with these pins A DO 41 package is shown installed below Or shown in a closer view The remaining photos shown the differ...

Page 59: ...The four pockets are wired in parallel Only one DUT may be installed at a time or the resulting waveforms will be incorrect 59...

Page 60: ...hode reversed However incorrect waveforms will be generated The IN OUT and CONTROL connectors are on the rear of the jig below the hinges AVX TRR DO214AC TEST JIG The AVX TRR DO214AC accepts DO214AC t...

Page 61: ...The next photo shows a DO214AC device Vishay US1M installed in the middle pocket The anode and cathode sides are clearly marked on the PCB 61 A DO214AC packaged Device Under Test DUT...

Page 62: ...he exact diode switching characteristics 4 If reflections are observed on the output waveform increase the length of the coaxial cable connecting the test jig to the output module so that the reflecti...

Page 63: ...ent this sequence would be more appropriate rst resets the instrument trigger source hold turns off all triggering output on turns on the output pulse delay 1 us sets the delay to 1 us pulse width1 10...

Page 64: ...ce FREQuency CW FIXed numeric value SOURce PULSe PERiod numeric value WIDTh numeric value DELay numeric value GATE LEVel HIgh LOw SOURce VOLTage LEVel IMMediate AMPLitude numeric value PROTection TRIP...

Page 65: ...e INTernal EXTernal MANual HOLD IMMediate CLS no query form ESE numeric value ESR query only IDN query only OPC SAV 0 1 2 3 no query form RCL 0 1 2 3 no query form RST no query form SRE numeric value...

Page 66: ...factory for repair Service is to be performed solely by qualified service personnel Caution High voltages are present inside the instrument during normal operation Do not operate the instrument with t...

Page 67: ...s recommended TRIGGER DAMAGE The rear panel TRIG input used in the external trigger mode is protected by a diode clamping circuit However the protection circuit is not foolproof and it is possible for...

Page 68: ...st G 1 G 2 B1 G 4 G 3 L N G X2 CORCO M6EGG 1 2POWERENTRY M O DULE 1 1b 1a 2 2b 2a X1 POWERSWITCHSW325 ND CWINDUSTRIES G RS 4022 0013 A1 BRO WN A2 BLUE A3 BLACK A4 WHITE GR N AMB D1 P395 NDLED GRN AMB...

Page 69: ...PCB 158R5 LOW VOLTAGE POWER SUPPLY...

Page 70: ...CB 1 GN D 1 2 4V I N 2 MON 3 EN 4 GN D 5 AD JUST 6 REF OUT 7 GN D 8 GN D 9 OU T 1 0 OU T 1 1 CASE 12 CASE 13 UV1 1 8A24 P20 D1 1N4750 C1 2 2uF CER CC W CW W TOP VIEW R7 5K 3266W R8 100 OY D3 1N4937 1...

Page 71: ...PCB 104G KEYPAD DISPLAY BOARD...

Page 72: ...GND GND GND LV SSR EN VC J234 NDSPACERSX2 168 R1 R2 R3 R4 R5 R6 R7 D2 D3 D4 D5 R8 R9 R10 R11 UV1 1 4A24 P30 ME WITHPCB168B 24V OLO CHSGND NOT USED 100OY NOT USED NOT USED 1N4937A 1N4937A NOT USED ZER...

Page 73: ...I N S O C K E T P 5 E D 5 0 1 1 P I N S O C K E T P 2 E D 5 0 3 1 P I N S O C K E T P 9 E D 5 0 3 1 P I N S O C K E T P 4 E D 5 0 3 1 P I N S O C K E T P 1 E D 5 0 3 1 P I N S O C K E T X 1 4 4 0 M O...

Page 74: ...ON BOTTOM SW 1 SW 1 RE FL C RE FL E RE FL A RE FL K N C N C N C A K E C U4 HOA1 397 REF LECTIVE S ENSOR X1 4 40 MOUNT X5 4 40 MOUNT X3 4 40 MOUNT X4 4 40 MOUNT TO 50 OHM TERMINA TION HVA HVB HV C R2...

Page 75: ...0 M O U N T X 3 4 4 0 M O U N T X 4 4 4 0 M O U N T H V A H V B H V C R 5 4 9 9 K 1 R 2 2 2 0 O Y R 1 2 2 0 O Y R 3 2 2 0 O Y R 4 2 2 0 O Y D B 9 P I N 1 D B 9 P I N 2 D B 9 P I N 3 D B 9 P I N 4 D B...

Page 76: ...TEST JIG WIRING AVX TRR HPOST...

Page 77: ...E Y P A D 1 1 2 3 4 5 6 7 8 9 1 0 J 1 1 0 P I N H E A D E R S W 1 S W 1 R E F L C R E F L E R E F L A R E F L K N C N C N C A K E C U 1 H O A 1 3 9 7 R E F L E C T I V E S E N S O R R 1 4 9 9 1 R 4 5...

Page 78: ...X 2 K E Y P A D 1 1 2 3 4 5 6 7 8 9 1 0 J 1 1 0 P I N H E A D E R S W 1 S W 1 R E F L C R E F L E R E F L A R E F L K N C N C N C A K E C U 1 H O A 1 3 9 7 R E F L E C T I V E S E N S O R R 1 4 9 9 1...

Page 79: ...D R 5 2 2 0 O Y R 6 2 2 0 O Y R 7 2 2 0 O Y R 8 2 2 0 O Y X 6 K E Y S T O N E 6 2 1 B R A C K E T X 7 K E Y S T O N E 6 2 1 B R A C K E T X 8 C H R O M E K N O B L E E V A L L E Y 0 1 W 1 3 0 1 X 1 2...

Page 80: ...Y S T O N E 6 2 1 B R A C K E T X 1 6 K E Y S T O N E 6 2 1 B R A C K E T X 1 7 K E Y S T O N E 6 2 1 B R A C K E T X 1 8 K E Y S T O N E 6 2 1 B R A C K E T X 1 9 K E Y S T O N E 6 2 1 B R A C K E T...

Page 81: ...N S O C K E T P 1 E D 5 0 3 1 P IN S O C K E T X 1 4 4 0 M O U N T X 5 4 4 0 M O U N T X 3 4 4 0 M O U N T X 4 4 4 0 M O U N T H V A H V B H V C R 2 4 9 9 K 1 P 4 N O T U S E D P 1 4 0 3 7 8 P IN S O...

Page 82: ...E F L E R E F L A R E F L K N C N C N C A K E C U 1 H O A 1 3 9 7 R E F L E C T IV E S E N S O R R 1 4 9 9 T O 5 0 O H M T E R M I N A T I O N X 1 4 4 0 M O U N T X 5 4 4 0 M O U N T X 3 4 4 0 M O U N...

Page 83: ...PERFORMANCE CHECK SHEET 83...

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