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P.O. BOX 265
OGDENSBURG, NY
U.S.A. 13669-0265
A V T E C H
TEL: 888-670-8729 (USA & Canada) or +1-613-226-5772 (Intl)
FAX: 800-561-1970 (USA & Canada) or +1-613-226-2802 (Intl)
info@avtechpulse.com
INSTRUCTIONS
MODEL AV-106A-B
0 to 30 AMP, 0 to 30 V, 50 ns RISE TIME
LASER DIODE DRIVER
WITH IEEE 488.2 AND RS-232 CONTROL
SERIAL NUMBER: ____________
E L E C T R O S Y S T E M S
N A N O S E C O N D
W A V E F O R M
S I N C E
-
http://www.avtechpulse.com/
E L E C T R O N I C S
1 9 7 5
BOX 5120, LCD MERIVALE
X
OTTAWA, ONTARIO
CANADA
1
L T D .
K2C 3H4

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  • Page 1 FAX: 800-561-1970 (USA & Canada) or +1-613-226-2802 (Intl) OTTAWA, ONTARIO U.S.A. 13669-0265 CANADA K2C 3H4 info@avtechpulse.com http://www.avtechpulse.com/ INSTRUCTIONS MODEL AV-106A-B 0 to 30 AMP, 0 to 30 V, 50 ns RISE TIME LASER DIODE DRIVER WITH IEEE 488.2 AND RS-232 CONTROL SERIAL NUMBER: ____________...
  • Page 2: Warranty

    Avtech product is found to be defective, Avtech shall 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 ratings.
  • Page 3: Table Of Contents

    TABLE OF CONTENTS WARRANTY........................2 TECHNICAL SUPPORT....................2 TABLE OF CONTENTS....................3 INTRODUCTION.......................5 SPECIFICATIONS......................6 EUROPEAN REGULATORY NOTES................7 EC DECLARATION OF CONFORMITY.................. 7 DIRECTIVE 2002/95/EC (RoHS)..................... 7 DIRECTIVE 2002/96/EC (WEEE).................... 7 INSTALLATION........................9 VISUAL CHECK........................9 POWER RATINGS........................9 CONNECTION TO THE POWER SUPPLY................9 PROTECTION FROM ELECTRIC SHOCK................
  • Page 4 PCB 104D - KEYPAD / DISPLAY BOARD, 2/3..............42 PCB 104D - KEYPAD / DISPLAY BOARD, 3/3..............43 MAIN WIRING - NEGATIVE UNITS (-N)................44 PERFORMANCE CHECK SHEET.................45 Manual Reference: Z:\officefiles\instructword\av-106\AV-106A-B,edition3.odt. Last modified January 17, 2007. Copyright © 2007 Avtech Electrosystems Ltd, All Rights Reserved.
  • Page 5: Introduction

    ), and is terminated with a DB-37 male connector. A sample connectorized test load is provided. The AV-106A-B can be controlled from the front panel, or via a computer connected to the IEEE 488.2-compliant GPIB port, or the RS-232 serial port.
  • Page 6: Specifications

    SPECIFICATIONS Model AV-106A-B Amplitude 0 to 30 Amperes Load voltage range: 0 to 30 Volts Pulse width: 0.5 to 50 us Rise time, fall time: ≤ 50 ns PRF: 0 to 1 kHz Duty cycle: (max) 0.25% Output impedance: ≥ 50 Ohms Output regulation: ≤...
  • Page 7: European Regulatory Notes

    Directive 2002/96/EC categories 1-7 and 10, as stated in the "Article 2 - Scope" section of Directive 2002/95/EC. DIRECTIVE 2002/96/EC (WEEE) European customers who have purchased this equipment directly from Avtech will have completed a “WEEE Responsibility Agreement” form, accepting responsibility for...
  • Page 8 Article 9 of Directive 2002/96/EC. Customers who have purchased Avtech equipment through local representatives should consult with 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.
  • Page 9: Installation

    INSTALLATION VISUAL CHECK After unpacking the instrument, examine to ensure that it has not been damaged in shipment. Visually inspect all connectors, knobs, liquid crystal displays (LCDs), and the handles. If the instrument has been damaged, file a claim immediately with the company that transported the instrument.
  • Page 10: Protection From Electric Shock

    5. Do not attempt any repairs on the instrument, beyond the fuse replacement procedures described in this manual. Contact Avtech technical support (see page 2 for contact information) if the instrument requires servicing. Service is to be performed solely by qualified service personnel.
  • Page 11: Labview Drivers

    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.natinst.com/.
  • Page 12: Fuses

    FUSES This instrument contains four fuses. All are accessible from the rear-panel. Two protect the AC prime power input, and two protect the internal DC power supplies. The locations of the fuses on the rear panel are shown in the figure below: Fuses #1 and #2 Fuse #4 Fuse #3...
  • Page 13: Dc Fuse Replacement

    DC FUSE REPLACEMENT The DC fuses may be replaced by inserting the tip of a flat-head screwdriver into the fuse holder slot, and rotating the slot counter-clockwise. The fuse and its carrier will then pop out. FUSE RATINGS The following table lists the required fuses: Recommended Replacement Part Nominal Fuses...
  • Page 14: Front Panel Controls

    FRONT PANEL CONTROLS 1. POWER Switch . This is the main power switch. When turning the instrument on, there may be a delay of several seconds before the instrument appears to respond. 2. OVERLOAD Indicator . When the instrument is powered, this indicator is normally green, indicating normal operation.
  • Page 15 5. KEYPAD . Control Name Function MOVE This moves the arrow pointer on the display. CHANGE This is used to enter the submenu, or to select the operating mode, pointed to by the arrow pointer. ×10 If one of the adjustable numeric parameters is displayed, this increases the setting by a factor of ten.
  • Page 16: Rear Panel Controls

    REAR PANEL CONTROLS GRN=LNK NARROW WIDE PULSE PULSE YEL=ACT RS-232 OUT P OUT N GPIB 1. AC POWER INPUT . An IEC-320 C14 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.
  • Page 17 “Programming Manual for -B Instruments” for more details on RS-232 control. 8. LAN Connector and Indicator . (Optional feature. Present on -TNT units only.) The -TNT option "Internet-enables" Avtech pulse generators by adding this standard Ethernet port to the rear panel, in addition to the IEEE-488.2 GPIB and RS-232 ports normally found on "-B"...
  • Page 18 13. MON – WIDE PULSE . The “WIDE PULSE” monitor output connector is the output of an DC-coupled differential amplifier monitoring the current through a small resistance in series with the output. It is only useful for pulse widths of 3 us or wider. At narrower pulse widths, inductive artifacts (“spikes”) on the rising and falling edges distort the measurement too much.
  • Page 19: General Information - Pulse Generator Timing

    GENERAL INFORMATION - PULSE GENERATOR TIMING BASIC PULSE CONTROL This instrument can be triggered by its own internal clock or by an external TTL trigger signal. In either case, two output channels respond to the trigger: OUT and SYNC. The OUT channel is the signal that is applied to the device under test.
  • Page 20: Trigger Modes

    > 50 ns TRIG TTL LEVELS (external input) (0V and 3V-5V) PROPAGATION DELAY (FIXED) 100 ns, FIXED SYNC OUT 3V, FIXED DELAY > 0 PULSE WIDTH AMPLITUDE, VARIABLE MAIN OUTPUT As before, if the delay is negative, the order of the SYNC and OUT pulses is reversed. TRIGGER MODES This instrument has four trigger modes: •...
  • Page 21: Burst Generation (-Br Option)

    to synchronous mode, the output will complete the full pulse width if the output is high, and then stop triggering. No pulses are truncated in this mode. BURST GENERATION (-BR OPTION) The waveforms given above assume that a single output pulse is generated for each trigger event (regardless of the source).
  • Page 22 > 50 ns TRIG TTL LEVELS (external input) (0 and 3V-5V) PROPAGATION DELAY (FIXED) SYNC OUT BURST COUNT (N), VARIABLE FROM 1 TO 500. PULSE WIDTH DELAY (N = 3, IN THIS EXAMPLE) (VARIABLE) (VARIABLE) MAIN OUTPUT BURST PULSE SEPARATION The burst mode may also be used with the front-panel “Single Pulse”...
  • Page 23: General Information - Operating Into A Load

    GENERAL INFORMATION - OPERATING INTO A LOAD AMPLITUDE CONTROL The AV-106A-B is a pulsed constant current source. The output current is largely independent of the load voltage (as long as the load voltage remains within the specified 0 to 30V range).
  • Page 24 Two unused SMA connectors are provided for making connections through the chassis wall, if desired. A 5/16" hole, plugged with a screw is also provided. The screw may be removed to provide an access hole to the interior of the chassis. For safety reasons, the lid should be installed on the aluminum chassis so that users can not physically touch the load.
  • Page 25: Test Arrangement

    TEST ARRANGEMENT The basic test arrangement is shown below: Connect pins 1-19 together to Diode obtain output REAL-TIME AV-106 PULSER (device AV-CLZ1-100 under test) OSCILLOSCOPE CABLE Scope probe HIGH IMPEDANCE INPUT Optional Norcomp 172-037-201-001 Connect series TRIG SYNC DB-37 female connector with pins 20-37 resistance.
  • Page 26: Lenz's Law And Inductive Voltage Spikes

    REAL-TIME AV-106 PULSER OSCILLOSCOPE 20 dB ATTENUATO 50 OHM INPUT Conventional Series resistance. TRIG SYNC 50 Ohm cable = 1Ω INPUT OUTPUT (for instance, TOTAL RG-58 or RG-174 coaxial cable) There are several key points to note. As explained above, a resistance can optionally be added in series with the diode load, to provide transmission line matching.
  • Page 27: Current Measurement

    CURRENT MEASUREMENT Measuring current is more difficult than measuring voltage. There are three basic approaches to measuring pulsed current: 1) Rely on the accuracy of the amplitude setting (typically 5%), as displayed on the LCD display. 2) Use a high-performance current transformer, such as a Pearson 2878. The output voltage of the transformer is proportional to the sensed current.
  • Page 28: Start-Up Check-List For Local Control

    START-UP CHECK-LIST FOR LOCAL CONTROL 1. Connect the supplied test load (AV-CTL1-ENC) to the rear-panel of the mainframe, using the AV-CLZ1-100 cable. 2. Connect a cable from the SYNC OUT connector to the TRIG input of an oscilloscope. Set the oscilloscope to trigger externally. 3.
  • Page 29 b) Press the CHANGE button. The pulse width submenu will appear. Rotate the ADJUST knob until the pulse width is set at 50 us. c) The arrow pointer should be pointing at the “Normal” choice. If it is not, press MOVE until it is.
  • Page 30: Calibration Adjustments - Software Procedures

    CALIBRATION ADJUSTMENTS - SOFTWARE PROCEDURES ADJUSTING AMPLITUDE ACCURACY The AV-106A-B has two amplitude ranges: 0 to 4A, and 4A to 30A, approximately. The calibration of each range can be adjusted by a few percent if necessary. If it is found that the output amplitude settings (as set by the front-panel controls or programming commands) do not agree exactly with measured values of amplitude (i.e.,...
  • Page 31: Programming Your Pulse Generator

    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.
  • Page 32: All Programming Commands

    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.
  • Page 33 :BITS 7 | 8 :ECHO <boolean value> :PARity :[TYPE] EVEN | ODD | NONE :SBITS 1 | 2 :ERRor :[NEXT]? [query only] :COUNT? [query only] :VERSion? [query only] TRIGger: :SOURce INTernal | EXTernal | MANual | HOLD | IMMediate *CLS [no query form] *ESE <numeric value>...
  • Page 34: Mechanical Information

    There are no user-adjustable internal circuits. For repairs other than fuse replacement, please 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.
  • Page 35: Maintenance

    MAINTENANCE REGULAR MAINTENANCE This instrument does not require any regular maintenance. On occasion, one or more of the four rear-panel fuses 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 dislodge any accumulated dust.
  • Page 36: Wiring Diagrams

    . C ontac t Avtech if the in stru m en t requ i res servic ing. S e rvice is to b e p erfo rm ed WAR NING sol ely by qua lifi ed s ervic e pe rs onne l.
  • Page 37: Pcb 158K - Low Voltage Power Supply, 1/3

    PCB 158K - LOW VOLTAGE POWER SUPPLY, 1/3 p cb 1 58 k _ ov p p cb 1 58 k _ ov p .sch +1 5V +1 5V +1 5V GN D GN D P-OU T # 1 P-OU T # 1 -1 5 V -1 5 V -1 5 V...
  • Page 38: Pcb 158K - Low Voltage Power Supply, 2/3

    PCB 158K - LOW VOLTAGE POWER SUPPLY, 2/3 8 3 08 3 5 FUSEHO LDER 6 4 04 4 5 -6 TEST-LOO P TEST-LOO P S1 A S1 B, OR D C S2 A, O R DC S2 B 4 3 4- 13 -1 0 0 M C2 0 C1 9 C2 1...
  • Page 39: Pcb 158K - Low Voltage Power Supply, 3/3

    PCB 158K - LOW VOLTAGE POWER SUPPLY, 3/3 R2 1 1 .5 K O Y CAPBANK C2 3 1 N5 3 0 5 1 0 00 u F,3 5 V (P5 16 9 -ND ) L6 27 1 1 HV WA RN ING R1 7 SHO RTS OU T B ASE WHEN C HAR GING.
  • Page 40: Pcb 168B - High Voltage Dc Power Supply

    PCB 168B - HIGH VOLTAGE DC POWER SUPPLY HV WA RN ING HV WA RN ING 1 N4 9 3 7 1 N4 9 3 7 6 4 04 4 5 -2 6 4 04 4 5 -2 1 N4 9 3 7 1 N4 9 3 7 1 0 0 OY R1 0...
  • Page 41: Pcb 104D - Keypad / Display Board, 1/3

    PCB 104D - KEYPAD / DISPLAY BOARD, 1/3 AH E10 G- ND, Mfg 49 9 9 10 -1 , 1 0 pin straig h t h ead er LCD-BUTT LCD-BUTT.SCH GN D GN D VCC-LED VCC-LED BACKLIG HT BACKLIG HT ENCOD ER ENCOD ER.SCH I2 C_ INT...
  • Page 42: Pcb 104D - Keypad / Display Board, 2/3

    PCB 104D - KEYPAD / DISPLAY BOARD, 2/3 U4 A C1 0 PIN3 2 .2 u F C1 5 C1 3 1 5 K MM7 4H C1 4 N 0 .1 u F 0 .1 u F 0 .1 u F 0 .1 u F GN D U4 B...
  • Page 43: Pcb 104D - Keypad / Display Board, 3/3

    PCB 104D - KEYPAD / DISPLAY BOARD, 3/3 2 2 uF 0 .1 u F GN D IN T GN D PAD 3 PAD 4 PCF8 5 7 4A PN LED+ LED- U1 A U1 C MM7 4H C1 4 N MM7 4H C1 4 N 2 .7 OH M, 2 W U1 B...
  • Page 44: Main Wiring - Negative Units (-N)

    OFFSE T , 0 -10 V AM PL IT UDE , 0 -10 V T R IG OU T OP1B M AIN B O AR D, PC B 10 8R AV-106A-B-N WIRING Printed Revision 17-Jan-2007 Z:\m j c f il es \c irc uits \ av-106 \AV -106.D DB - A V-106A-B \A V-1 06A-B -N wiri ng v1.s c h...
  • Page 45: Performance Check Sheet

    PERFORMANCE CHECK SHEET...

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