Circuit and method for controlling a dynamic, bi-directional high voltage analog switch
US6509781B2 · kind B2 · utility
14Cited by
8References
38Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 20, 2001 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Mar 20, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/6874
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit and method for controlling a switch include a level shifter that controls a dynamic, bi-directional high voltage analog switch. The level shifter generally includes transistors, input terminals, a voltage source, a high negative voltage source, and a diode. The configuration of the level shifter, inter alia, allows the switch to be kept ON without a current/signal, prevents dissipation of transistors of the level shifter, and provides constant gate-to-source voltage on the switch transistors for improved linearity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.