Method and circuit to quickly start a negative switching voltage

Details Method and circuit to quickly start a negative switching voltage Method and circuit to quickly start a negative switching voltage

1991-10-16

1992-11-03

Stephan, Steven L.

Electric power conversion systems

Current conversion

With starting arrangement

323901, H02M 3156

Patent

active

051610965

ABSTRACT:
A method and circuit for quickly starting a negative switching voltage regulator to reach a certain level of negative voltage. A regulator chip is used in the circuit, with the circuit having an output terminal from which the negative voltage is obtained. The chip has a start pin thereon and also has an internal transistor which switches on and off to provide an increasing negative voltage at the output terminal. In response to a Start signal at the start pin, a start up circuit is used to provide a forcing current at the output terminal via a second source of negative voltage. When the increasing negative voltage at the output terminal reaches the voltage level of the second source, the start up circuit is turned off.

REFERENCES:
patent: 4209710 (1980-06-01), Quarton
patent: 4344122 (1982-08-01), Jones
patent: 4511956 (1985-04-01), Dewan
patent: 4642746 (1987-02-01), Losel
patent: 4788450 (1988-11-01), Wagner
patent: 4982149 (1991-01-01), Shimanuki

Affiliated with

Also associated with

Rating

Method and circuit to quickly start a negative switching voltage does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and circuit to quickly start a negative switching voltage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and circuit to quickly start a negative switching voltage will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2055082