Circuit array
US8212391B2 · kind B2 · utility
0Cited by
20References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 21, 2003 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Mar 25, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/693
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit array controls operation of two loads that operate with a rectified AC voltage. The circuit array includes a semiconductor switch on a circuit path with the two loads and a control unit to generate a switch control signal that controls the semiconductor switch. The control unit includes a phase detection device to detect whether a phase of the AC voltage is positive or negative, and to output a detection signal that is based on whether the phase is positive or negative, and a logic unit to generate the switch control signal based on load control signals and the detection signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.