Patent ID: 7956653

Claim:
A complementary high voltage switched current source circuit comprising: a pair of control waveforms; a pair of Zener diodes, wherein each of the pair of Zener diodes is driven by one of the pair of control waveforms, a first of the pair of Zener diodes attached to a first control waveform and to a positive voltage rail and a second of the pair of Zener diodes is attached to a second control waveform and to a negative voltage rail; a pair of resistive elements, wherein a first of the pair of resistive element is in parallel with the first Zener diode, and a second of the pair of resistive element is in parallel with the second Zener diode; a pair of capacitive elements, wherein a first capacitive element is coupled to the first Zener diode and to the first control waveform, and a second capacitive element is coupled to the second Zener diode and to the second control waveform; a pair of switching diodes; a P-type MOSFET having a source terminal attached to the positive voltage rail, a gate terminal attached to the first control waveform, and the drain terminal attached to a first diode of the pair of switching diodes; an N-type MOSFET having a source terminal attached to the negative voltage rail, a gate terminal attached to the second control waveform, and the drain terminal attached to a second diode of the pair of switching diodes; a first transistor switch, a first terminal of the first transistor switch attached to the positive voltage rail and a second terminal of the first transistor switch attached to a third terminal of the first transistor switch and to the P-type MOSFET; and a second transistor switch, a first terminal of the second transistor switch attached to the negative voltage rail and a second terminal of the second transistor switch attached to a third terminal of the second transistor switch and to the N-type MOSFET.