Driver circuit
US6661259B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 5, 2002 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Jul 5, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0036
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A driver circuit includes a follower transistor and a first switch connected serially between an output terminal and a first power supply, a first current source and a second switch connected serially between the output terminal and a second power supply, and a bias control device for supplying the follower transistor with an input bias voltage based upon an input signal voltage. The first switch is turned on at one timing in a data output interval, thereby causing the transistor to perform a follower operation to drive the output terminal voltage to the vicinity of a certain voltage defined in conformity with the input signal voltage, the second switch is turned on at a timing subsequent to the one timing, thereby placing both the first and second switches in the ON state, and the output terminal voltage is driven to the certain voltage, which is defined in conformity with the input signal voltage, from the subsequent timing onward.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.