High and low power voltage regulation circuit
US9958889B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 2015 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Sep 28, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/0016
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a voltage regulation circuit including a first transistor connected between an input of voltage to be regulated and an output of a regulated voltage. A first regulation loop controls the first transistor according to a difference between a reference voltage and a first feedback voltage derived from the regulated voltage. A second transistor is connected in series between the first transistor and the output. A second regulation loop controls the second transistor according to a difference between the reference voltage and a second feedback voltage derived from the regulated voltage. The second regulation loop is active in low and high power regulation modes. A switch circuit forces the first transistor into an on state in a low power regulation mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.