Transformer-isolated power MOSFET driver circuit

Details Transformer-isolated power MOSFET driver circuit Transformer-isolated power MOSFET driver circuit

1983-08-15

1985-04-16

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307246, 307279, 307282, H03K 17687, H03K 1704, H03K 1760, H03K 1768

Patent

active

045118159

ABSTRACT:
A high power MOSFET switching circuit which has a larger duty cycle is driven from the output winding of a saturable isolation transformer. The output winding is coupled to the gate of the MOSFET power switch through a series connected control MOSFET device having an inherent parallel-connected diode. The gate capacitance is charged through the diode and is discharged through the control MOSFET when it is turned on. The drive circuit is a low impedance circuit with full isolation between input and output terminals.

REFERENCES:
patent: 4052623 (1977-10-01), Loberg
patent: 4423341 (1983-12-01), Shelly

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