Voltage regulation circuits and power supply devices using the same
US9772637B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2013 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Jul 17, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/46
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage regulation circuit is provided. The voltage regulation circuit regulates a level of a supply voltage provided by an automotive battery. The voltage regulation circuit includes a selector and an error amplifier. The selector receives a plurality of predetermined voltages and selects one of the plurality of predetermined voltages according to a control signal to serve as a first reference voltage. The error amplifier generates an error signal according to the first reference voltage and a feedback signal. The feedback signal is related to the supply voltage. The voltage regulation circuit regulates the level of the supply voltage according to the error signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.