Voltage regulator with an improved efficiency
US6677737B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2002 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Apr 14, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/122
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage regulator having an output terminal provided for being connected to a load, including an amplifier having its inverting input connected to a reference voltage, and its non-inverting input connected to the output terminal, a charge capacitor arranged between the output terminal and a first supply voltage, first and second voltage-controlled switches each arranged to connect a second supply voltage and the output terminal, and a control means adapted to providing a voltage depending on the output voltage of the amplifier, on the one hand, to the gate of the first switch and, on the other hand, when the current flowing through the first switch reaches a predetermined threshold, to the gate of the second switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.