The AVR-G series is specifically designed for gating and beam blanking applications requiring amplitudes up to +/- 250 Volts, pulse widths from 100 ns to 0.5 sec and duty cycles as high as 50%. This series is designed to drive high impedance loads such as microchannel plates, grids and beam deflection plates. This series is also suitable for driving certain high-impedance electrooptic modulators (EOMs). Typical output waveforms provided by each of the five standard models in this series are shown on this page. It should be noted that the versatile AVR-G technology can be readily adapted to provide a wide variety of other waveforms (e.g., higher voltages, dual outputs, alternating polarity, etc).
Model AVR-G1-B provides up to 250 Volts out, pulse widths from 100 ns to 1 ms, PRF to 10 kHz and duty cycles to 80%. An option is available which allows the inter-pulse baseline to be offset by 0 to +/- 50 Volts. A switchable output polarity option is also available. Another option allows the polarity to invert with each pulse, to generate a bipolar waveform. Model AVR-G2-B provides an output which is basically the complement of the AVR-G1-B output - that is, the output potential is high (and variable) during the inter-pulse interval. The amplitude during this interval is variable from 0 to 250 Volts (via a one-turn control) while the amplitude during the pulse is fixed at 0 Volts. However, the OS option allows the voltage during the pulse to be varied from 0 to +/- 50 Volts.
