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PROGRAMMING YOUR PULSE GENERATOR

KEY PROGRAMMING COMMANDS

The “Programming Manual for -B Instruments” describes in detail how to connect the

pulse generator to your computer, and the programming commands themselves. A

large number of commands are available; however, normally you will only need a few of

these. Here is a basic sample sequence of commands that might be sent to the

instrument after power-up:

*rst

(resets the instrument)

trigger:source internal

(selects internal triggering)

frequency 1000 Hz

(sets the frequency to 1000 Hz)

pulse:delay 1 us

(sets the delay to 1 us)

pulse:width 10 us

(sets the positive pulse width to 10 us)

volt:ampl +25.7

(sets the positive pulse amplitude to +25.7 V)

output on

(turns on the output)

For triggering a single event, 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:width 10 us

(sets the positive pulse width to 10 us)

volt:ampl +25.7

(sets the positive pulse amplitude to +25.7 V)

trigger:source immediate (generates a single non-repetitive trigger event)

trigger:source hold

(turns off all triggering)

output off

(turns off the output)

To set the instrument to trigger from an external TTL signal applied to the rear-panel

TRIg connector, use:

*rst

(resets the instrument)

trigger:source external

(selects internal triggering)

pulse:delay 1 us

(sets the delay to 1 us)

pulse:width 10 us

(sets the positive pulse width to 10 us)

volt:ampl +25.7

(sets the positive pulse amplitude to +25.7 V)

output on

(turns on the output)

These commands will satisfy 90% of your programming needs.

Содержание 14260

Страница 1: ...32 ETHERNET CONTROL SERIAL NUMBER 14260 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 avtechpu...

Страница 2: ...all at its option repair or replace said defective item This warranty does not apply to units which have been dissembled modified or subjected to conditions exceeding the applicable specifications or...

Страница 3: ...CENSING 12 INSTALLATION 13 VISUAL CHECK 13 POWER RATINGS 13 CONNECTION TO THE POWER SUPPLY 13 PROTECTION FROM ELECTRIC SHOCK 14 ENVIRONMENTAL CONDITIONS 15 FUSES 16 AC FUSE REPLACEMENT 16 DC FUSE REPL...

Страница 4: ...RMATION 43 TOP COVER REMOVAL 43 RACK MOUNTING 43 ELECTROMAGNETIC INTERFERENCE 43 MAINTENANCE 44 REGULAR MAINTENANCE 44 CLEANING 44 TRIGGER DAMAGE 44 WIRING DIAGRAMS 45 WIRING OF AC POWER 45 PCB 158R4...

Страница 6: ...he 50 Ohm inputs of an oscilloscope by two lengths of coaxial cable The user supplied oscilloscope is used to measure the VFR and tFR values based on the waveforms from the test jig outputs The wavefo...

Страница 7: ...can also be used to trigger the instrument The AVR EBF6 B features front panel keyboard and adjust knob control of the output pulse parameters along with a four line by 40 character backlit LCD displ...

Страница 8: ...switchable Suppresses triggering when active Power requirements 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 b...

Страница 9: ...This jig will not accept any other type of package SOD123 AVX CA SOD123 7 nH 1A Accepts SOD123 packages A clamp presses the DUT down against upwards facing spring pins SOD123W AVX CA SOD123W 7 nH 1A...

Страница 10: ...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 shielde...

Страница 11: ...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...

Страница 12: ...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...

Страница 13: ...One AVX FILT 12NS accessory filter 11 Units with F20NS option only One AVX FILT 20NS accessory filter POWER RATINGS This instrument is intended to operate from 100 240 V 50 60 Hz The maximum power co...

Страница 14: ...30V 50 Hz AC06 Qualtek 378001 E01 South Africa India SABS 164 1 220 250V 50 Hz AC17 Volex 2131H 10 C3 Japan JIS 8303 100V 50 60 Hz AC18 Qualtek 397002 01 Israel SI 32 220V 50 Hz AC19 Qualtek 398001 01...

Страница 15: ...if the instrument requires servicing Service is to be performed solely by qualified service personnel ENVIRONMENTAL CONDITIONS This instrument is intended for use under the following conditions 1 indo...

Страница 16: ...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...

Страница 17: ...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 Ti...

Страница 18: ...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 another 5 seconds If the overload condition has bee...

Страница 19: ...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 ADJ...

Страница 20: ...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...

Страница 21: ...nternally See the Programming Manual for B Instruments for more details on RS 232 control 8 Network Connector This Ethernet connector allows the instrument to be remotely controlled using the VXI 11 3...

Страница 22: ...tive value the SYNC pulse precedes the OUT pulse When the delay is set to a negative value the SYNC pulse follows the OUT pulse These pulses are illustrated below assuming internal triggering and a po...

Страница 23: ...igger the instrument is 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 Instr...

Страница 24: ...will complete the full pulse width if the output is high and then stop triggering Pulses are not truncated 24...

Страница 25: ...jig main output is fed into the 50 Ohm input of an oscilloscope by a 60 cm length of BNC to SMA coaxial cable as is the monitor output 25 AVTECH AVR EBF6 B MAINFRAME SYNC CONNECTOR CONTROL TEST JIG OS...

Страница 26: ...nt SETTING THE AMPLITUDE LEVELS The amplitude pulse may be set from the front panel of the instrument or by computer command This amplitude is expressed in terms of the voltage present on the test jig...

Страница 27: ...should have identical lengths to avoid introducing timing skews ACCESSIBLE VOLTAGES The mainframe provides pulsed voltages of up to 100V to the test jig For this reason the output is automatically dis...

Страница 28: ...gnals on the test jig by IF VIN VDUT 50 IF 10 VMON 10 VOUT 50 The above figure shows tfr as the time between 0 1 IF and Vfr Unfortunately the text also says tfr is measured from the time forward volta...

Страница 29: ...slightly after 0 1 VIN This will slightly increase the measured tFR value If you prefer to not use this approximation you will need to use the math functions of your oscilloscope to identify 0 1 VMON...

Страница 30: ...st jig is normally supplied with the mainframe unless the customer has requested a different or additional test jigs The AVX TFR MIX test jig accepts a range of through hole and axial devices using pi...

Страница 31: ...de pin sockets in the blue area above and one of the Cathode sockets in the red area above Select the sockets with the most appropriate hole size and try to minimize all lead lengths to minimize paras...

Страница 32: ...diode cathode is inserted here This socket and spring pin provide mechanical support only They are not electrically active For TO 3 packages with Case Anode This spring pin must contact the underside...

Страница 33: ...X TFR SOD123W The AVX TFR SOD123W test jig will accept SOD123W packages To install a DUT open the main black lid like this Raise the green lever on the left This will raise the nylon screw over the DU...

Страница 34: ...tweezer access The DUT will rest on two spring pins one contacting each DUT pad The cathode should be on the right The anode should be on the left Lower the green lever on the left This will lower th...

Страница 35: ...with a firm locking effect It may be necessary to occasionally adjust this screw Once the DUT is installed in the socket close the main lid It must be closed for proper operation AVX TFR SOD128 The A...

Страница 36: ...of this manual generated using the actual shipped instrument and the specific jig s supplied with the instrument 1N5811 RESULTS A customer supplied 1N5811 engineering sample sample 51 was tested in t...

Страница 37: ...1 V div 10 ns div Bottom Test jig main output VDUT 10 50 mV div 10 ns div Top Test jig MON output VIN 10 25 7V with 12 ns rise time 1 V div 10 ns div Bottom Test jig main output VDUT 10 50 mV div 10 n...

Страница 38: ...V such that the forward current IF 500 mA using an 8 ns rise time filter and the AVX TFR MELF test jig The following forward recovery waveform was obtained at the test jig OUT terminal Top Test jig MO...

Страница 39: ...jig output must be terminated with 50 Ohms 2 Keep device lead lengths as short as possible to minimize parasitic inductance 3 The test jig lid must be closed or the pulser output will be disabled For...

Страница 40: ...t For triggering a single event 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 d...

Страница 41: ...Lay numeric value GATE LEVel HIgh LOw SOURce VOLTage LEVel IMMediate AMPLitude numeric value PROTection TRIPped query only STATUS OPERation EVENt query only always returns 0 CONDition query only alway...

Страница 42: ...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 STB query only TST query only WAI no query form 42...

Страница 43: ...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...

Страница 44: ...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...

Страница 45: ...OPCB108 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 POWERSWITCH SW325 ND C...

Страница 46: ...PCB 158R4 LOW VOLTAGE POWER SUPPLY...

Страница 47: ...PCB 235D HIGH VOLTAGE DC POWER SUPPLY...

Страница 48: ...PCB 104H KEYPAD DISPLAY BOARD...

Страница 49: ...PCB 201C INTERLOCK CONTROL...

Страница 50: ...MAIN WIRING...

Страница 51: ...T P 5 E D 5 0 1 1 P IN S O C K E T P 2 E D 5 0 3 1 P IN S O C K E T P 9 E D 5 0 3 1 P IN S O C K E T P 4 E D 5 0 3 1 P IN 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...

Страница 52: ...TEST JIG WIRING AVX TFR SOD123W...

Страница 53: ...TEST JIG WIRING AVX TFR SOD128...

Страница 54: ...PERFORMANCE CHECK SHEET 54...

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