Base drive circuit

Details Base drive circuit Base drive circuit

1981-12-22

1984-02-07

Shoop, William M.

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

307296A, 323289, G05F 156

Patent

active

044306083

ABSTRACT:
The invention includes a first switching transistor which is actuated by a logic signal. This switching transistor is disposed in a current path from the base of the power transistor. When this switch is actuated, the invention provides a large steady state base drive current superimposed with a base current peaking pulse from a current generator. The invention also includes a second switch which applies a reverse potential to the base of the switching transistor for fast turnoff. The specific embodiments disclose circuitry for regulating forward base drive current to minimize line voltage variations and component tolerances. An improved bipolar power transistor base drive circuit for switching regulator and DC to DC converter power supplies is disclosed.

REFERENCES:
patent: 3999086 (1976-12-01), Ekelund
patent: 4242629 (1980-12-01), Shuey
patent: 4355277 (1982-10-01), Davis et al.

Affiliated with

Also associated with

Rating

Base drive circuit 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, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Base drive circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2163741