Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Clock or pulse waveform generating
Patent
1995-04-13
1997-01-14
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Clock or pulse waveform generating
327377, 327177, 307419, 307106, H03K 17687, H03K 1704
Patent
active
055943780
ABSTRACT:
A fast, high voltage modulator circuit (10) has a drive circuit (12) apply input pulses to an on-section (88) and an off-section (90). The on-section (88) and off-section (90) having a common output (46). A pair of transformers (18,24) connects the drive circuit (12) to the on-section (88) and off-section (90) respectively. The drive circuit (12) applies a pulse to the first transformer (18), which transmits the pulse to a first MOSFET (32) closing the first MOSFET (32) to connect an input high voltage (40) to the output (46). The drive circuit (12) applies an off pulse to the second transformer (24), which transmits the pulse to second and third MOSFETS (62,82), closing the second MOSFET (62) and connecting a lower input voltage (68) to the output (46). Also, closing the third MOSFET (82) that shorts out a gate (34) of the first MOSFET (32), thus opening the first MOSFET (32). The entire circuit is modular, being stackable to switch higher voltages.
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Data Sheet PD-9.604, Hexfet Transistors, International Rectifier (8 pages) Mar. 1988.
Brichta Donald A.
Kruse Neils A.
Callahan Timothy P.
Englund Terry L.
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