Stabilized voltage supply

Details Stabilized voltage supply Stabilized voltage supply

1992-11-24

1994-11-15

Stephan, Steven L.

Electricity: power supply or regulation systems

Output level responsive

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

323234, 323284, 363 74, G05F 1565

Patent

active

053651618

ABSTRACT:
A stabilized voltage supply has a semiconductor and an output transistor formed on the semiconductor substrate and responsive to a power voltage. When the power voltage decreases to a level equal to or lower than a predetermined level, the output transistor is saturated. At this time, the semiconductor substrate is heated. The stabilized voltage supply also has a voltage dividing resistor for converting the output current of the output transistor into a stabilized output voltage which in turn is divided to form a feedback voltage. The stabilized voltage supply further has a differential amplifier for amplifying a differential voltage between the feedback voltage and a predetermined reference voltage, the differential voltage being then applied to the control electrode of the output transistor. The control electrode of the output transistor receives a current corresponding to the current applied thereto. The stabilized voltage supply further has a voltage detecting circuit for detecting when the power voltage decreases to a level equal to or lower than the predetermined level, and a current feedback circuit for dividing the output current of the output transistor and for subtracting a current corresponding to the divided current from the current at the control electrode of the output transistor when the power voltage decreases to a level equal to or lower than the predetermined level.

REFERENCES:
patent: 4470020 (1984-09-01), Mohr
patent: 4731574 (1988-03-01), Melbert
patent: 4760434 (1988-07-01), Tsuzuki et al.
patent: 4810847 (1989-03-01), Ito
patent: 4929883 (1990-05-01), Chieli
patent: 4964010 (1990-10-01), Miyasaka et al.
patent: 5079497 (1992-01-01), Barbu et al.
patent: 5177431 (1993-01-01), Smith et al.

Affiliated with

Also associated with

Rating

Stabilized voltage supply does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stabilized voltage supply, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stabilized voltage supply will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1100097