Switchable voltage follower and bridge driver using the same
US6388477B1 · kind B1 · utility
21Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 28, 2001 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Jun 28, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/265
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A switchable voltage follower and a bridge driver that utilizes the voltage follower. The voltage follower has an output transistor pair, three switching devices and an operational amplifier. Each of the switching devices is controlled by a polarity terminal for switching the circuit to be a pull-up voltage follower or a pull-down voltage follower. The bridge driver is formed by two switchable voltage followers to provide a bridge push-pull driving capability by driving the two switchable voltage followers alternately.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.