Patent · US Expired

Voltage regulator including an LED to provide a reference voltage

US3947753A · kind A · utility

9Cited by

10References

7Claims

0Family size

Assignee

Canon Kabushiki Kaisha · JP

Inventors

Hideki Gushima
Matsutoshi Ito
Junichi Ishiwata · Yokohama, JP

Key dates

Filing date	Jul 18, 1974
Grant date	Mar 30, 1976
Priority date	—
Expiry date	Jul 18, 1994

Classification

Technology area (CPC G)Physics
CPC primaryG05F1/468
WIPO fieldControl
WIPO sectorInstruments

Abstract

A voltage regulator which includes an electrical circuit for maintaining a constant output, said electrical circuit including at least one light emitting diode connected to provide a reference voltage and to operate as a pilot lamp.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.