Voltage-supply circuit, voltage-supply method, power-supply circuit, electro-optical unit, and electronic apparatus
US7408543B2 · kind B2 · utility
2Cited by
11References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2005 |
| Grant date | Aug 5, 2008 |
| Priority date | — |
| Expiry date | Aug 11, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power-supply circuit includes a capacitor, which is connected to a terminal at a first end while being grounded at the second end, for supplying a hold voltage between both ends thereof to a load; a capacitor connected, via a diode, to the terminal at a first end; an operational amplifier for raising a voltage at the second end of the capacitor, in response to a reduction in the hold voltage, such that the hold voltage becomes equal to a target voltage; and a transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.