High voltage driver amplifier apparatus

A high voltage driver amplifier apparatus comprising in combination:

• a deadband unit to receive an input signal, said deadband unit providing a deadband over a predetermined voltage range,
• a first comparator means having a positive input, a negative input and an output, said positive input connected to said deadband unit, said first comparator means receiving said input signal at said positive input, said first comparator means providing a comparator output signal,
• a first gated oscillator means connected to said first comparator means to receive said comparator output signal therefrom, said first gated oscillator means providing a clock pulse signal with a predetermined frequency,
• a first high voltage switch means receiving said clock pulse signal from said first gated oscillator means, said first high voltage switch means connected between a positive high voltage source and a load source, said first high voltage switch means applying said positive high voltage to said load source in response to said clock pulse signal,
• a second comparator means having a positive input, a negative input and an output, said negative input connected to said deadband unit, said second comparator means receiving said input signal at said negative input, said second comparator means providing a comparator output signal,
• a second gated oscillator means connected to said second comparator means to receive said comparator output signal therefrom, said second gated oscillator means providing a clock pulse signal with a predetermined frequency,
• a second high voltage switch means receiving said clock pulse signal from said second gated oscillator means, said second high voltage switch means connected between a negative high voltage source and said load source, said second high voltage switch means applying said negative high voltage to said load source in response to said clock pulse signal, and,
• a feedback network connected from between said first and second high voltage switch means, and said load source to ground, said feedback network providing a feedback signal, said feedback signal being applied to said negative input of said first comparator means and to said positive input of said second comparator means.