Current drive device
US7859490B2 · kind B2 · utility
0Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2007 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | Oct 28, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/3283
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The current drive device of the present invention includes: a current source transistor for allowing a preset drive current to flow to a drain; a cascode transistor cascode-connected to the current source transistor; a switch circuit for switching ON/OFF flow of the drive current through the drain of the cascode transistor and a circuit to be driven; and a bypass circuit for allowing the drive current to flow therethrough to bypass the switch circuit and the circuit to be driven when the switch circuit is OFF.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.