Differential power sensor circuit

Details Differential power sensor circuit Differential power sensor circuit

1997-10-01

1999-10-26

Riley, Shawn

Electricity: power supply or regulation systems

Output level responsive

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

327143, G05F 140

Patent

active

059734868

ABSTRACT:
A power sensor circuit including an input terminal, a switch, a nonlinear voltage drop element, and a switching unit, wherein the switching unit provides an output voltage. In response to a voltage difference between a first reference voltage and a second reference voltage, the power sensor circuit outputs a voltage that varies between two states. In one embodiment, the first state is substantially equal to the second reference voltage and the second state is substantially equal to ground. In another embodiment, the power sensor circuit is composed of four metal oxide semiconductor field effect transistors (MOSFETs) that compare a first reference voltage with a second reference voltage and determine whether the second reference voltage exceeds the first reference voltage by a predetermined voltage. If so, then the second reference voltage is produced at the output terminal of the power sensor circuit. Conversely, if the second reference voltage does not exceed the first reference voltage by the same predetermined level, then the output terminal is substantially at ground. The invention also relates to a method for generating a power sensing circuit.

REFERENCES:
patent: 5180926 (1993-01-01), Skripek
patent: 5378936 (1995-01-01), Kukubo et al.
patent: 5684417 (1997-11-01), Huang et al.
Sipex Corporation "Schematic for a Power-up Circuit in Sipex Corporation's SP9500 integrated circuit", 1995 1 pg. Billerica, MA.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-768587