Patent ID: 6359524
Filing Date: 2002-03-19
Classification: G01S,H03F,H03K

Abstract:
In an electrical pulsing system including a utilization device having first and second terminals and pulsing means for applying repetitive voltage pulses to a first terminal of said device, said second terminal providing a current return path between said device and said pulsing means, said voltage pulses having a first ripple voltage component between pulse rise and fall times, and including ripple compensating means for applying a replica of said first ripple voltage to said utilization device second terminal to tend to hold the instantaneous voltage between said first and second terminals constant during each of said pulses, comprising:first means for comparing the ripple voltages at said first and second utilization device terminals to generate a difference signal; second means comprising a memory for repetitively storing a sample amplitude value for each of said samples, said amplitude values corresponding to the instantaneous values of said ripple voltage at said utilization device second terminal; third means for driving said utilization device second terminal in accordance with amplitude values stored in said memory; and fourth means responsive to said first means difference signal to continuously control said stored amplitude values in said memory to produce minimum amplitude at the output of said first means.