Voltage down converter
US6806692B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 22, 2002 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Dec 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/465
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage down converter 10 for providing a supply voltage and current to a device, such as a semiconductor device. The voltage down converter includes a first circuit 12 that supplies steady state or “DC” current to the device, and a second circuit 14 that supplies the fluctuating or “AC” current to the device. The first circuit 12 includes a first comparator 18 that drives a first transistor P1 to supply most of the steady state current. The second circuit 14 includes a second comparator 20, which is larger than the first comparator 18, and which drives a second transistor P2, which is smaller than the first transistor P1, to supply the fluctuating current to the device. The converter 10 further includes a feedback circuit 16 for controlling the supply voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.