Electrically controlled bidirectional AC switch, and an integrated circuit and electronic card incorporating the switch
US5811994A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1996 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Jun 28, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/6872
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The switch of this invention has two conduction terminals and basically consists of the parallel coupling, across the two conduction terminals, of a first N-channel MOS transistor and second P-channel MOS transistor. The first MOS transistor will be conducting when the signal applied to the conduction terminals has a first polarity, and the second MOS transistor will be conducting when the signal applied to the conduction terminals has a second polarity. Advantageously, if two unidirectional conduction circuit elements are respectively connected in series with the main conduction paths of the two MOS transistors, the drain/body junctions of the latter will never be conducting regardless of the way the switch is connected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.