Distributed magnetic coupling synchronizes a stacked 25-kV MOSFET switch

This paper reports the development of a stacked MOSFET switch with a uniformly distributed magnetic structure to coherently deliver 45-ns rise-time pulses from a 25-kV power supply. Gate jitter problems were avoided. This circuit is currently in use delivering variable-width 50-kV pulses for an elec...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2000-01, Vol.15 (1), p.58-61
Main Authors: Keith, W.D., Pringle, D., Rice, P., Birke, P.V.
Format: Article
Language:English
Subjects:
Coupling circuits
Electric fields
Electric power generation
Electrical engineering
Electrical equipment
Electromagnetism
Electronics
Floating structures
Jitter
Magnetic switching
MOSFET circuits
MOSFETs
Power MOSFET
Power supplies
Pulse circuits
Pulse generation
Pulsed power supplies
Switches
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Summary:This paper reports the development of a stacked MOSFET switch with a uniformly distributed magnetic structure to coherently deliver 45-ns rise-time pulses from a 25-kV power supply. Gate jitter problems were avoided. This circuit is currently in use delivering variable-width 50-kV pulses for an electric field generator. These fields are applied to dry food samples at up to a 300-Hz repetition rate using oppositely biased floating MOSFET stacks for simultaneous switching of two 25-kV power supplies.
ISSN:0885-8993
1941-0107
DOI:10.1109/63.817363