Base drive circuit for a four-terminal power Darlington

Details Base drive circuit for a four-terminal power Darlington Base drive circuit for a four-terminal power Darlington

1981-03-24

1983-04-19

Shoop, William M.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

363124, 318811, H02M 7537

Patent

active

043807950

ABSTRACT:
A high power switching circuit which utilizes a four-terminal Darlington transistor block to improve switching speed, particularly in rapid turn-off. Two independent reverse drive currents are utilized during turn off in order to expel the minority carriers of the Darlington pair at their own charge sweep-out rate. The reverse drive current may be provided by a current transformer, the secondary of which is tapped to the base terminal of the power stage of the Darlington block. In one application, the switching circuit is used in each power switching element in a chopper-inverter drive of an electric vehicle propulsion system.

REFERENCES:
patent: 2663806 (1953-12-01), Darlington
patent: 3003108 (1961-10-01), Thiele
patent: 4233529 (1980-11-01), Whitlock
"A New Base Drive Scheme for Transistorized Electrical Vehicle Propulsion", R. A. Carter and F. C. Lee, Power Car Conference, Mar. 25, 1980.

Affiliated with

Also associated with

Rating

Base drive circuit for a four-terminal power Darlington does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Base drive circuit for a four-terminal power Darlington, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Base drive circuit for a four-terminal power Darlington will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-839420