BiCMOS circuit with negative V.sub.BE protection

Details BiCMOS circuit with negative V.sub.BE protection BiCMOS circuit with negative V.sub.BE protection

1992-09-09

1994-04-05

Westin, Edward P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307473, 307570, H03K 1902

Patent

active

053008294

ABSTRACT:
A BiCMOS circuit, with protection against a negative base-emitter voltage, is described. The bipolar device is typically coupled between, for example, V.sub.DD and an output. An input is coupled to the base of the bipolar device, turning it on or off. CMOS circuitry is included which isolates the base of the bipolar device from the input when the input goes low and discharges the base through the output. Additional circuitry is disclosed which causes the output to float whenever an enable line is low and causes the output to be at either the same or inverted logic state as the input whenever the enable line is high, to form a non-inverting or inverting tri-state buffer, respectively.

REFERENCES:
patent: 4649294 (1987-03-01), McLaughlin
patent: 4703203 (1987-10-01), Gallup et al.
patent: 4730132 (1988-03-01), Watanabe et al.
patent: 5068548 (1991-11-01), El Gamel
patent: 5107142 (1992-04-01), Bhamidipaty

Affiliated with

Also associated with

Rating

BiCMOS circuit with negative V.sub.BE protection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with BiCMOS circuit with negative V.sub.BE protection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and BiCMOS circuit with negative V.sub.BE protection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-513997