The AVMR series offers medium-voltage operation at relatively high pulse repetition frequencies. Model AVMR-3 series offers amplitude to 50V, with pulse widths variable from 10 to 100 ns, and pulse repetition frequencies to 3 MHz. The rise and fall times are fixed at 2.5 ns. Instruments with the -B suffix include a complete computer control interface. This provides GPIB and RS-232 computer-control, as well as front panel keypad and adjust knob control of the output pulse parameters. A large backlit LCD displays the output amplitude, frequency, pulse width, and delay.
On all -C and -B models, a delay control and a sync output are provided for sampling scope triggering purposes. All models can also be triggered externally using a TTL-level pulse. All models are protected from overload conditions (such as excessively high duty cycle or short circuited load) by an automatic control feature that limits the output power for as long as the overload condition exists.
Either output polarity or optional dual output polarity can be provided.
Polarity inversion is accomplished by means of a front-panel two-position switch. All models include an output DC offset or bias insertion function. The required DC offset or bias is applied directly to rear panel solder terminals.