Avtech AVO-6-B, Инструкция по эксплуатации

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INTRODUCTION
The AVO-6HZ-B is a high performance, GPIB and RS232-equipped instrument capable
of generating up to 10 A at repetition rates up to 100 kHz. The pulse width is variable
from 50 ns to 50 us, and the duty cycle may be as high as 5%. Rise and fall times are
fixed at less than 15 ns. The AVO-6HZ-B includes an internal trigger source, but it can
also be triggered or gated by an external source. A front-panel pushbutton can also be
used to trigger the instrument.
The AVO-6HZ-B features front panel keyboard and adjust knob control of the output
pulse parameters along with a four line by 40-character backlit LCD display of the
output amplitude, pulse width, pulse repetition frequency, and delay. The instrument
includes memory to store up to four complete instrument setups. The operator may use
the front panel or the computer interface to store a complete “snapshot” of all key
instrument settings, and recall this setup at a later time.
The instrument is protected against overload conditions by an automatic control circuit.
An internal power supply monitor removes the power to the output stage for five
seconds if an average power overload exists. After that time, the unit operates normally
for one second, and if the overload condition persists, the power is cut again. This cycle
repeats until the overload is removed.
The AVO-6HZ-B consists of two parts, the pulser mainframe and the output module.
The mainframe is a voltage pulser, which generates up to 110V (V
OUT
). Instruments with
the "-P" model suffix can generate up to +110V, whereas instruments with the "-N"
model suffix can generate up to -110V. Instruments with the "-PN" suffix can generate
both polarities.
The fan-cooled output module contains an 11Ω (±10%) series resistance, and
packaged diodes may be soldered to the output terminals of this module. The diode
load is connected in series with the internal resistance, so that the current through the
diode is normally given by:
I
DIODE
= (V
OUT
– V
DIODE
) / 11Ω
where V
DIODE
is the voltage drop across the diode . These values must be selected such
that I
DIODE
never exceeds 10 A.
This instrument is intended for use in research, development, test and calibration
laboratories by qualified personnel.
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