Constant voltage output circuit
US4283674A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jul 19, 1979 |
| Grant date | Aug 11, 1981 |
| Priority date | — |
| Expiry date | Jul 19, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/18
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
This invention relates to a constant voltage output circuit using, as its reference potential source, power source feed terminals for feeding a power source voltage to a reference potential source of a given circuit. The constant voltage output circuit includes a series circuit of an npn transistor and a pnp transistor interposed between the reference potential source of the given circuit and the power source feed terminals, means for biasing the base potential of the pnp transistor by a predetermined potential with respect to the potential of the power source feed terminals, and an emitter follower circuit disposed in the collector output circuit of the npn transistor of the series circuit, and forming a negative feed-back circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.