Constant voltage circuit
US9188998B2 · kind B2 · utility
1Cited by
11References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2012 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Jan 18, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/247
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In a constant voltage circuit including: an error amplifier circuit amplifying a difference voltage between an output voltage and a reference voltage; and an output transistor controlling the output voltage based on an output of the error amplifier circuit, a voltage proportional to a leakage current detected by a monitoring transistor is generated by an oscillation circuit and a charge pump circuit and is supplied to a back gate of the output transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.