Stabilized reference current or reference voltage source

Details Stabilized reference current or reference voltage source Stabilized reference current or reference voltage source

1995-02-09

1996-11-19

Sterrett, Jeffrey L.

Electricity: power supply or regulation systems

Self-regulating

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

323316, G05F 316

Patent

active

055766161

ABSTRACT:
A circuit supplying a stabilised voltage (Vref) which is insensitive to variations of the supply voltage (Vcc) and of the temperature, comprises a cell of four transistors. The first two transistors have their bases and collectors cross-coupled, and the first transistor has its emitter coupled to the reference voltage (VEE) by a resistor and has an emitter area larger than the emitter area of the third transistor. A fifth transistor has an emitter connected to the collector of the fourth transistor and a base which is driven by a line via a resistor. This line is coupled to the supply voltage via a current source. This resistor has a value between 2 and 4 times that of a compensation resistor coupled between the third transistor and the line. Preferably, a capacitance is connected between the bases of the second and the fifth transistor. The circuit is useful as a reference voltage source in integrated circuits where the supply voltage is afflicted with noise.

REFERENCES:
patent: 3930172 (1975-12-01), Dobkin
patent: 4491780 (1985-01-01), Neidorff
patent: 4682098 (1987-07-01), Seevinck et al.
patent: 4816742 (1989-03-01), van de Plassche
patent: 4958122 (1990-09-01), Main
patent: 5015942 (1991-05-01), Kolando
patent: 5049807 (1991-09-01), Banwell et al.
patent: 5367249 (1994-11-01), Honnigford
patent: 5399914 (1995-03-01), Brewster
patent: 5432432 (1995-07-01), Kimura
patent: 5446409 (1995-08-01), Katakura

Affiliated with

Also associated with

Rating

Stabilized reference current or reference voltage source 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 reference current or reference voltage source, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stabilized reference current or reference voltage source will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-543201