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Avtech AVP-AV-HV3-B, Инструкция по эксплуатации

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DUAL-OUTPUT OPTIONS

 

 

The AVP-AV-HV3-B is optionally available with two outputs, each with independent 
pulse width and amplitude controls. The two channels share a common trigger source, 
and have a variable delay separation of 0 to ±50 ns.

The timing diagrams in the previous section apply to the Channel 1 output. The second 
channel (added by the -2CH options) is positioned relative to the Channel 1 output, as 
shown below:

22

SYNC

(generated by the
internal oscillator)

100 ns, FIXED

OUT 1

PW1

DLY1

AMP1,
VARIABLE

3V, FIXED

OUT 2

PW2

DLY2

AMP2,
VARIABLE

Содержание AVP-AV-HV3-B

Страница 1: ...ETHERNET CONTROL SERIAL NUMBER 14163 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 or 1 613 686 6675 Worldwide BOX 5120 LCD MERIVALE OTTAWA CANADA K2C3H5 ...

Страница 2: ...lace 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 extent of the obligation assumed by Avtech with respect to this product and no other warranty or guarantee is either expressed or implied TECHNICAL SUPPORT Phone 888 670 8729 USA Canada or 1 613 686 667...

Страница 3: ...POWER RATINGS 10 CONNECTION TO THE POWER SUPPLY 10 PROTECTION FROM ELECTRIC SHOCK 11 ENVIRONMENTAL CONDITIONS 12 LABVIEW DRIVERS 12 FUSES 13 AC FUSE REPLACEMENT 13 DC FUSE REPLACEMENT 14 FUSE RATINGS 14 FRONT PANEL CONTROLS 15 REAR PANEL CONTROLS 17 GENERAL INFORMATION 19 BASIC PULSE CONTROL 19 TRIGGER MODES 20 GATING MODES 21 OPERATION AT LOW AMPLITUDES 21 DUAL OUTPUT OPTIONS 22 PROTECTING YOUR I...

Страница 4: ...58R5 LOW VOLTAGE POWER SUPPLY 34 PCB 235C HIGH VOLTAGE DC POWER SUPPLY 35 PCB 231A INTERNAL OFFSET GENERATOR 36 PCB 216F PW PRF TWEAK 37 PCB 151D RANGE POLARITY RELAY BOARD 38 PCB 241B DELAY 39 PCB 313A AUXILIARY DACS 40 PCB 335A TWO CHANNEL ENCODER 41 PCB 104G KEYPAD DISPLAY BOARD 42 MAIN WIRING SINGLE POLARITY UNITS 43 MAIN WIRING DUAL POLARITY UNITS 44 MAIN WIRING 2CHPP 2CHPN 2CHNN UNITS 45 MAI...

Страница 5: ... The AVP AV HV3 B is a highly flexible instrument Aside from the internal trigger source it can also be triggered or gated by external TTL level signals A front panel pushbutton or a computer command can also be used to trigger the instrument The AVP AV HV3 B features front panel keyboard and adjust knob control of the output pulse parameters along with a four line by 40 character backlit LCD disp...

Страница 6: ... SMA M RG 316 coaxial cable one 36 inch SMA M SMA M RG 316 coaxial cable one 24 inch SMA M BNC M RG 316 coaxial cable one 36 inch BNC M BNC M RG58C U coaxial cable one SMA F to BNC M adapter one SMA M to BNC F adapter one SMA F to SMA F adapter and one SMA F to solder cup adapter Temperature range 5 C to 40 C Power requirements 100 240 Volts 50 60 Hz Dimensions 100 430 375 mm 3 9 17 14 8 Chassis m...

Страница 7: ...ng 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 shielded metal dust caps to reduce the interference potential This instrument does not normally require regular maintenance to minimize interference potential However if loose hardware or connectors are no...

Страница 8: ...ation 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 greater than the listed maximum value Material Substance Threshold level Lead Pb 1000 ppm 0 1 by mass Mercury Hg 1000 ppm 0 1 by mass Hexavalent Chromium Cr6 1000 ppm 0 1 by mass Polybrominated Biphenyl...

Страница 9: ... 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 activities FIRMWARE LICENSING Instruments with firmware versions 5 00 or higher use open source software internally Some of this software requires that the source code be made available to the user as a cond...

Страница 10: ...or operation from a normal single phase supply CONNECTION 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 with the instrument plugs into this socket The other end of the detachable power cord plugs into the local mains supply Use only the cable supplied wi...

Страница 11: ...perators 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 the risk of electric shock This instrument is intended for use by qualified personnel who recognize shock hazards and are familiar with safety precautions required to avoid possibly injury In particu...

Страница 12: ... C decreasing linearly to 50 relative humidity at 40 C 5 Mains supply voltage fluctuations up to 10 of the nominal voltage 6 no pollution or only dry non conductive pollution LABVIEW DRIVERS A LabVIEW driver for this instrument is available for download on the Avtech web site at http www avtechpulse com labview A copy is also available in National Instruments Instrument Driver Library at http www ...

Страница 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 may then be extracted using a small flat head screwdriver as shown below 13 Fuses 1 and 2 AC fuses Fuse 4 DC fuse Fuse 3 DC fuse Fuse Drawer Pry out the fuse drawer using a screwdriver ...

Страница 14: ...250V Time Delay 5 20 mm 021801 6HXP F2424 ND 4 DC N A 0 5A 250V Time Delay 5 20 mm 0218 500HXP F2416 ND Units with the 2CHX option require different fuses Fuses Nominal Mains Voltage Rating Case Size Recommended Replacement Part Littelfuse Part Number Digi Key Stock Number 1 2 AC 115 V 0 8A 250V Time Delay 5 20 mm 0218 800HXP F2418 ND 230 V 0 5A 250V Time Delay 5 20 mm 0218 500HXP F2416 ND 3 DC N ...

Страница 15: ...he 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 another 5 seconds If the overload condition has been removed the instrument will resume normal operation This overload indicator may flash yellow briefly at start up This is not a cause for concern 3 OUT CONNECTOR This SMA c...

Страница 16: ... 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 ADJUST knob In the extra fine mode the step size is twenty times finer than in the normal mode This button switches between the two step sizes ADJUST This large knob adjusts the value of any displaye...

Страница 17: ...e 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 unconnected When set to active high mode this input is pulled down to ground by a 1 kΩ resistor When set to active low mode this input is pulled up to 5V by a 1 kΩ resistor 5 TRIG This TTL level 0 and 5V logic input can be...

Страница 18: ... This Ethernet connector allows the instrument 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 M Connectors Optional feature Present on M units only The monitor output provides an attenuated replica 20 dB down of the voltage on the main output but excluding the effect of the internal range a...

Страница 19: ...delay is set to a positive 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 positive delay Figure A If the delay is negative the order of the SYNC and OUT pulses is reversed Figure B 19 SYNC OUT generated by the internal oscillator 100 ns FIXED MAIN OUTPUT...

Страница 20: ...rument controls the trigger frequency and generates the clock internally External Trigger the instrument is triggered by an external TTL level clock on the back panel TRIG connector Manual Trigger the instrument is triggered by the front panel SINGLE PULSE pushbutton Hold Trigger the instrument is set to not trigger at all These modes can be selected using the front panel trigger menu or by using ...

Страница 21: ...iggering Pulses are not truncated OPERATION AT LOW AMPLITUDES This instrument will generate the best waveforms when operated near maximum amplitude If amplitudes less than 20 of the full scale value are desired better results will be obtained if the pulse generator is operated at a higher amplitude and an attenuator is connected to the output Avtech recommends the BW SxxW2 series of 18 GHz coaxial...

Страница 22: ...rigger source and have a variable delay separation of 0 to 50 ns The timing diagrams in the previous section apply to the Channel 1 output The second channel added by the 2CH options is positioned relative to the Channel 1 output as shown below 22 SYNC generated by the internal oscillator 100 ns FIXED OUT 1 PW1 DLY1 AMP1 VARIABLE 3V FIXED OUT 2 PW2 DLY2 AMP2 VARIABLE ...

Страница 23: ... instrument should be turned off when the instrument is not in use In the case of failure the switching elements are easily replaced following the procedure described in a following section DO NOT EXCEED 1 MHz The output stage may be damaged if triggered by an external signal at a pulse repetition frequency greater than 1 MHz USE A 50Ω LOAD The output stage may be damaged if the output is not term...

Страница 24: ...at the sampling scope vertical input channel will insure a peak input signal to the sampling scope of less than 1 Volt Factory tests are conducted using Mini Circuits BW S20W20 attenuators b The TRIG output channel provides TTL level signals approximately 0 and 3V To avoid overdriving the TRIG input channel of some scopes a 20 dB attenuator should be placed at the input to the scope trigger channe...

Страница 25: ...delay menu item b Press the CHANGE button The delay submenu will appear Rotate the ADJUST knob until the delay is set at 100 ns c The arrow pointer should be pointing at the Normal choice If it is not press MOVE until it is d Press CHANGE to return to the main menu 5 To set the pulse width to 2 ns a Press the MOVE button until the arrow pointer is pointing at the pulse width menu item b Press the ...

Страница 26: ...s set at 40V or 40V for N models c Observe the oscilloscope You should see 2 ns wide 40V pulses If you do not you may need to adjust the delay setting to a value more compatible with your sampling oscilloscope Repeat step 4 if required You may also need to adjust the sampling scope controls d Rotate the ADJUST knob The amplitude as seen on the oscilloscope should vary Return it to 40V e PN units o...

Страница 27: ...n 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 pulse width 2 ns sets the pulse width to 2 ns output on turns on the output volt ampl 20 sets the amplitude to 20 V N units should use volt ampl 20 volt low 2 sets the DC offset for units with the OT option trigger source immediate gener...

Страница 28: ...d These commands will satisfy 90 of your programming needs ALL PROGRAMMING COMMANDS For more advanced programmers a complete list of the available commands is given below These commands are described in detail in the Programming Manual for B Instruments Note this manual also includes some commands that are not implemented in this instrument They can be ignored Keyword Parameter Notes OUTPut STATe ...

Страница 29: ...d but not useful SYSTem COMMunicate GPIB ADDRess numeric value SERial CONTrol RTS ON IBFull RFR RECeive BAUD 1200 2400 4800 9600 19200 38400 57600 115200 ERRor NEXT query only COUNT query only VERSion query only TRIGger SOURce 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 quer...

Страница 30: ...e 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 the cover removed RACK MOUNTING A rack mounting kit is available The R5 rack mount kit may be installed after first removing the one Phillips screw on the side panel adjacent to the front handle ELEC...

Страница 31: ...is 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 a grossly excessive signal to damage the trigger circuitry on the main timing control board the 4 10 inch board on the right side of the instrument The IC that is most likely to fail under these con...

Страница 32: ...WIRING DIAGRAMS WIRING OF AC POWER ...

Страница 33: ...WIRING OF HIGH VOLTAGE POWER SUPPLY ...

Страница 34: ...PCB 158R5 LOW VOLTAGE POWER SUPPLY ...

Страница 35: ...PCB 235C HIGH VOLTAGE DC POWER SUPPLY ...

Страница 36: ...PCB 231A INTERNAL OFFSET GENERATOR ...

Страница 37: ...PCB 216F PW PRF TWEAK ...

Страница 38: ...PCB 151D RANGE POLARITY RELAY BOARD ...

Страница 39: ...PCB 241B DELAY ...

Страница 40: ...PCB 313A AUXILIARY DACS ...

Страница 41: ...PCB 335A TWO CHANNEL ENCODER ...

Страница 42: ...PCB 104G KEYPAD DISPLAY BOARD ...

Страница 43: ... POS OFF ON CONN7 OS EO OT UN ITS ONL Y IF OS BUTNOT OTOR EO UV HV TO PG UV GNDTOPG OS OT EO UNITS CONN2 OUT CONN1 MON MUNITS ONLY 15V CHS GND 15V NO OS OT EOONAVO 9 CHANGES REQUIREDON 295B 1 INST ALLC9 47pF 1 5 V 1 1 5 V 2 GN D 3 VP RF IN 4 A 0 T O 1 5 V 5 B 0 T O 1 5 V 6 C 0 T O 1 5 V 7 D 0 T O 1 5 V 8 BU F IN 9 BU F OU T 1 0 INV IN 1 1 INV O UT 1 2 NO N IN 1 3 NO N O UT 1 4 216E B C D 5 5 1 IN ...

Страница 44: ...D POL R LY 15V POL IN 151D BD3 PCB151D 5V 15V CONN1 SYNC CHSGND OUT MMCX GND AMP 15V N C SHNT N C N C OS LV HV TR IG PR F PW GND N C N C MON M 3 PG N CHSGND N O COM N C K4 401 2308 24V MUNITS ONLY N O COM N C K3 401 2308 24V CONN4 M ON MUNITSONLY HV TO PG GNDTOPG 24V NOOLO 15 V 1 15V 2 GND 3 VP RF IN 4 A 0 TO 1 5V 5 B 0 TO 1 5V 6 C 0 TO 1 5V 7 D 0 TO 1 5V 8 BUF IN 9 BUF OUT 10 INV IN 11 INV OUT 12...

Страница 45: ...208 12V N O COM N C K3 401 2208 12V M4 BW S15W2 CONN2 SYNC CONN3 GATE CONN4 EXT TRIG 24V NO OLO CONN1 OUT 2 15V CHS GND 15V N O COM N C K2 401 2208 12V N O COM N C K1 401 2208 12V M3 BW S15W2 15V 15V 241B GN D 1 5 V 1 5 V OU T IN IN SMA OUT SMA R N G VP W 5 V M IN RNG INST ALLC11 BD3 DLY A 5V CHANGES ON DLY A FIXED REM OVE R17 INST ALLR16 0 15V 15V 241B GN D 1 5 V 1 5 V OU T IN IN SMA OUT SMA R N ...

Страница 46: ...MAIN WIRING 2CHX UNITS ...

Страница 47: ...PERFORMANCE CHECKSHEET 47 ...

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