The AVMR series offers medium-voltage operation at relatively high pulse repetition frequencies. The AVMR-2 family provides pulses with amplitudes
variable to 5 Volts, and pulse widths variable from 10 ns to 200 ns. The maximum pulse repetition frequency is 10 MHz. The rise time of the computer-controllable -B units is fixed at 150 ps. The rise time of the manually-controlled -C units and modules is 1 ns, and a switchable rise/fall time option allows the rise and fall times to be switched from 1 ns to 0.15 ns. When equipped with the switchable rise/fall time option, the rise and fall times are separately controlled by two-position switches.
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 in models without the switchable rise/fall time option is accomplished by means of a front-panel two-position switch. Polarity inversion in models with the switchable rise/fall time option is accomplished by means of an inverting transformer module which mates to the pulse generator output port. 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.