AVTECH ELECTROSYSTEMS AVRQ-4-B, Инструкция по эксплуатации

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INTRODUCTION
The AVRQ-4-B is designed to test the common mode transient immunity (CMTI) of
optocouplers.
The standard AVRQ-4-B can generate -1.5, -1.0, +1.0, or +1.5 kV pulses. The switching
time (10%-90%) is adjustable from 20 ns up to 500 ns, using the front panel menus or
computer commands. At 1.5 kV, this corresponds to transition rates of 2.4 to 60 kV/us.
The -AHV option provides greater flexibility in the amplitude setting, permitting
adjustment from 1.0 to 1.5 kV (+ or -) in ≤ 1V steps.
The -XHV option provides a different amplitude range of 1.5 to 2.0 kV (+ or -) in ≤ 1V
steps, but the minimum switching time increases to 25 ns.
A daughterboard arrangement is used to accommodate difference device packages
and bias conditions. An arrangement of pin sockets on the main motherboard accepts
these daughterboards. Eight daughterboards suitable for use with typical 5V DIP8
packages are included with the AVRQ-4-B. The CAD/CAM files for these sample
boards are available for download at:
https://www.avtechpulse.com/semiconductor/avrq-4/#support_files
Users may design their own daughterboards to accommodate other package styles.
(Earlier AVRQ-4-B units, prior to S/N 13700, used a different socketing and
daughterboard arrangement. Current units have a different arrangement that offers
lower parasitic inductance.)
The AVRQ-4-B mainframe provides the high-voltage common mode pulse (which is tied
to GND1), and VCC2 / GND2 (the non-floating output-side power supply). The user is
responsible for configuring the daughterboards to implement the correct input side
power (VCC1), biasing, filtering, loading, socketing, and glitch measurement. The
included sample boards implement these requirements for common DIP8 devices,
using configurable jumpers/resistors/capacitors. A probe point is provided on the
motherboard for observation of the device logic output with a user-provided probe and
oscilloscope. An optional probe point is also provided on the sample daughterboards.
The ground-referenced output-side power (VCC2) is generated by the mainframe, and
is adjustable (+3V to +8V, or to +43V with the -SCHB option, 150 mA maximum). The
floating input-side power is not provided by the mainframe. Instead, an A23-type 12V
battery should be installed on the DUT daughterboard to provide a floating power
source, along with a basic regulator circuit to provide the necessary reg5V
power (VCC1). A isolated battery arrangement is used to ensure that the VCC1 power
supply is not the source of any glitches observed in the operation of the DUT.
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