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P.O. BOX 265
OGDENSBURG, NY
U.S.A. 13669-0265
TEL: (315) 472-5270
FAX: (613) 226-2802
A V T E C H
N A N O S E C O N D
TEL: 1-800-265-6681
FAX: 1-800-561-1970
e-mail: info@avtechpulse.com
http://www.avtechpulse.com/
INSTRUCTIONS
MODEL AV-106B-B
0 to 100 AMP, 0 to 100 V, 1 us 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
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
L T D .
BOX 5120, LCD MERIVALE
X
OTTAWA, ONTARIO
CANADA
K2C 3H4
TEL: (613) 226-5772
FAX: (613) 226-2802
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Related Manuals for Avtech AV-106B-B
Summary of Contents for Avtech AV-106B-B
- Page 1 TEL: (315) 472-5270 e-mail: info@avtechpulse.com TEL: (613) 226-5772 FAX: (613) 226-2802 http://www.avtechpulse.com/ FAX: (613) 226-2802 INSTRUCTIONS MODEL AV-106B-B 0 to 100 AMP, 0 to 100 V, 1 us RISE TIME LASER DIODE DRIVER WITH IEEE 488.2 AND RS-232 CONTROL SERIAL NUMBER: ____________...
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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......................7 EUROPEAN REGULATORY NOTES................8 EC DECLARATION OF CONFORMITY..................8 DIRECTIVE 2002/95/EC (RoHS)....................8 INSTALLATION....................... 9 VISUAL CHECK........................9 POWER RATINGS........................9 CONNECTION TO THE POWER SUPPLY................9 PROTECTION FROM ELECTRIC SHOCK................10 ENVIRONMENTAL CONDITIONS..................10 FUSES........................... - Page 4 PCB 104C - KEYPAD / DISPLAY BOARD, 1/3..............40 PCB 104C - KEYPAD / DISPLAY BOARD, 2/3..............41 PCB 104C - KEYPAD / DISPLAY BOARD, 3/3..............42 MAIN WIRING.........................43 PERFORMANCE CHECK SHEET................44 Manual Reference: Z:\officefiles\instructword\av-106\AV-106B-B,ed5.sxw. Last modified September 2, 2005. Copyright © 2005 Avtech Electrosystems Ltd, All Rights Reserved.
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Page 5: Introduction
INTRODUCTION The Model AV-106B-B pulse generator is designed for pulsing laser diode and other low impedance loads with rectangular pulses as high as 100 Amperes into load voltages up to 100V, with 1 us rise and fall times. The current and voltage polarities depend on the model number: "-P"... - Page 6 (The instrument automatically selects the appropriate range based on the amplitude setting.) The AV-106B-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.
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Page 7: Specifications
SPECIFICATIONS Model: AV-106B-B GPIB, RS-232 control: Standard on -B units. Amplitude: -P units: 0 to +100A. -N units: 0 to -100A. -PN units: 0 to ±100A. Pulse width: 2 to 200 us Rise time, fall time: ≤ 1 us PRF:... -
Page 8: European Regulatory Notes
This instrument is exempt from Directive 2002/95/EC of the European Parliament and of the Council of 27 January 2003 on the Restriction of the use of certain Hazardous Substances (RoHS) in electrical and electronic equipment. Specifically, Avtech instruments are considered "Monitoring and control instruments" (Category 9) as defined in Annex 1A of Directive 2002/96/EC. -
Page 9: Installation
INSTALLATION VISUAL CHECK After unpacking the instrument mainframe and the output module (two output modules for -PN versions), examine to ensure that they have not been damaged in shipment. Visually inspect all connectors, knobs, liquid crystal displays (LCDs), and the handles. Confirm that a power cord, a GPIB cable, and two instrumentation manuals (this manual and the “Programming Manual for -B Instruments”) are with 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 4. maximum relative humidity 80 % for temperatures up to 31 °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.
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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: Nominal Manufacturer’s Distributor’s... -
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.
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Page 16: Mainframe Rear Panel Controls
MAINFRAME REAR PANEL CONTROLS GATE TRIG RS-232 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. 2. - Page 17 independently. 6. GPIB Connector . A standard GPIB cable can be attached to this connector to allow the instrument to be computer-controlled. See the “Programming Manual for -B Instruments” for more details on GPIB control. 7. RS-232 Connector. A standard serial cable with a 25-pin male connector can be attached to this connector to allow the instrument to be computer-controlled.
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Page 18: Output Module Controls And Connectors
For negative units (or negative use of dual-polarity units), the diode must be reversed. A resistance in series with the laser diode in shown in the figure. Since the AV-106B-B is a current pulser, this resistance is optional - it is not required for current limiting. -
Page 19: P1, P2 Controls
P1, P2 CONTROLS Two ten-turn potentiometer controls, located on the top surface of the output module adjacent to the model label, are used to set the accuracy of the output amplitude setting. Both are set at the factory and should not be changed. The P1 pot is a scale control, that adjusts the output amplitude proportionately. -
Page 20: General Information
GENERAL INFORMATION BASIC TEST ARRANGEMENT Diode (device under 5-foot 25-pin cable test) OUTPUT AVTECH REAL-TIME MODULE MAINFRAME OSCILLOSCOPE scope probe OUT (25 PIN) CONTROL CHANNEL A series HV (BNC) resistance POWER 5-foot TRIG SYNC RG-174 INPUT OUTPUT coaxial cable The diode is shown oriented for positive (-P) operation. -
Page 21: 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 22 If the delay is negative, the order of the SYNC and OUT pulses is reversed: 100 ns, FIXED SYNC OUT (generated by the 3V, FIXED internal oscillator) DELAY < 0 PULSE WIDTH AMPLITUDE, VARIABLE MAIN OUTPUT The next figure illustrates the relationship between the signal when an external TTL- level trigger is used: >...
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Page 23: Trigger Modes
TRIG TTL LEVELS (external input) (0V and 3V-5V) PROPAGATION DELAY (FIXED) ≈ PW AMPLITUDE, MAIN OUTPUT VARIABLE The delay, pulse width, and frequency (when in the internal mode), of the OUT pulse can be varied with front panel controls or via the GPIB or RS-232 computer interfaces. TRIGGER MODES This instrument has four trigger modes: •... -
Page 24: Gating Modes
These modes can be selected using the front panel pulse width menu, or by using the appropriate programming commands. (See the “Programming Manual for -B Instruments” for more details.) GATING MODES Triggering can be suppressed by a TTL-level signal on the rear-panel GATE connector. The instrument can be set to stop triggering when this input high or low, using the front- panel gate menu or the appropriate programming commands. -
Page 25: Instrument And Load Protection
INSTRUMENT AND LOAD PROTECTION LENZ’S LAW AND INDUCTIVE VOLTAGE SPIKES This instrument is designed to pulse resistive and diode loads and will exhibit a large output spike when used to drive a load with significant inductance (as predicted by LENZ'S LAW). For this reason the load should be connected to the output using low inductance leads (as short as possible and as heavy a gauge as possible). -
Page 26: Changing Parameters When A Load Is Attached
CHANGING PARAMETERS WHEN A LOAD IS ATTACHED If your load is easily damaged, the amplitude should be reduced to zero before changing the trigger source, frequency, pulse width, or other pulse parameters. This protects the loads from possible short transient effects. ATTACHING AND DETACHING OUTPUT MODULES Output modules should always be connected to the mainframe BEFORE power is applied. -
Page 27: Start-Up Check-List For Local Control
START-UP CHECK-LIST FOR LOCAL CONTROL The instruction manual has been studied thoroughly. The “Local Control” section of the “Programming Manual for -B Instruments” has been studied thoroughly. The output module is connected to the mainframe as shown in the “Basic Test Arrangement”... - Page 28 until the amplitude is set at the desired setting. A rectangular pulse should appear on the scope and the amplitude should increase as the ADJUST knob is rotated. 13) Observe the pulse width and pulse period on the scope and confirm that the duty cycle does not exceed 0.1% and that the peak current does not exceed 100 Amps.
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Page 29: Calibration Adjustments
CALIBRATION ADJUSTMENTS ADJUSTING AMPLITUDE ACCURACY The AV-106B-B has two amplitude ranges: 0 to 30A, and 30A to 100A, 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 30: 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 31: All Programming Commands
To set the instrument to trigger from an external TTL signal applied to the rear-panel TRIG connector, and have the output pulse width track the pulse width of the input trigger, use: *rst (resets the instrument) trigger:source external (selects internal triggering) pulse:width in (sets the pulse width to PW = PW... - Page 32 :GATE :TYPE ASYNC | SYNC :LEVel HIgh | LOw STATUS: :OPERation :[EVENt]? [query only, always returns "0"] :CONDition? [query only, always returns "0"] :ENABle <numeric value> [implemented but not useful] :QUEStionable :[EVENt]? [query only, always returns "0"] :CONDition? [query only, always returns "0"] :ENABle <numeric value>...
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Page 33: 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 34: 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 35: Wiring Diagrams
WIRING DIAGRAMS WIRING OF AC POWER TPVP103-240042 is installed using four M2.5-0.45X12 screws. P OWER SWITCH SW32 5 -ND ( CW IND USTRIES GRS-4 0 22 -0 0 1 3 ) ROUTE TPVP103-240042 WIRES TOWARDS THE REAR. Crimp switch with: Molex 19002-0009. 0.187" x 0.032" 22-01- 1022, A3 - BLACK A1 - YELLOW... -
Page 36: Pcb 158G - Low Voltage Power Supply, 1/3
PCB 158G - LOW VOLTAGE POWER SUPPLY, 1/3 p cb 1 58 g _ ov p p cb 1 58 g _ 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 37: Pcb 158G - Low Voltage Power Supply, 2/3
PCB 158G - 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 38: Pcb 158G - Low Voltage Power Supply, 3/3
PCB 158G - LOW VOLTAGE POWER SUPPLY, 3/3 CAPBANK 1 .5 K O Y C2 3 BLEED ER 1 0 00 u F,3 5 V (P5 16 9 -ND ) HV WA RN ING SHO RTS OU T B ASE WHEN C HAR GING. 1 N5 3 0 5 L6 27 1 1 R1 5... -
Page 39: Pcb 160B - High Voltage Power Supply
PCB 160B - HIGH VOLTAGE POWER SUPPLY SMA 2 1 -6 4 04 5 6 -0 SMA 1 HV WA RN ING RELA Y, G 2R-1 -E, 2 4 V TR25 0 -0 8 0U 2 0 0 2 0 0 G6 A -2 -H,12 V 1 N4 9 3 7 CHASSIS GND... -
Page 40: Pcb 104C - Keypad / Display Board, 1/3
PCB 104C - KEYPAD / DISPLAY BOARD, 1/3 STD IDC H EADER WITH EJECTORS ID C SOCKET 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 I2 C_ INT SING LE PULSE SING LE PULSE GN D GN D... -
Page 41: Pcb 104C - Keypad / Display Board, 2/3
PCB 104C - 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 42: Pcb 104C - Keypad / Display Board, 3/3
PCB 104C - 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 LCD_ P OWER_ IN 2 .7... -
Page 43: Main Wiring
5 1 O HM OU T OP1 B MAIN BOA RD, PCB 1 0 8E CON 5 Title AV-106B-B (ALL POLARITIES) Date Rev ision 2 2 uF 2-Sep-2005 Z: \mjcfiles\circu its\av-106\AV-106.DDB - AV-1 06B-B-PN\POWER an d WIRI NG mod7 . sch... -
Page 44: Performance Check Sheet
PERFORMANCE CHECK SHEET...
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