Circuit and method for paralleling power transistors

Details Circuit and method for paralleling power transistors Circuit and method for paralleling power transistors

1978-03-15

1980-11-18

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307300, 307315, 307270, H03K 1760, H03K 326

Patent

active

042348056

ABSTRACT:
A circuit and method of paralleling power transistors connected as a Darlington circuit or device for use with electric motor controls. The circuit is comprised of a plurality of Darlington devices having a drive circuit from a motor controller connected to a common base connection and a plurality of active pull-down circuits for reducing the rise and fall times and effectively controlling the storage times of the power transistors. The active pull-down circuits are capacity coupled to an inverted drive signal to synchronize the turn-off time and speed-up discharge of storage in the power transistor circuit.

REFERENCES:
patent: 3831102 (1974-08-01), Medal
patent: 4100564 (1978-07-01), Sasayama
patent: 4128742 (1978-12-01), Davis

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