Zero crossing control structure for a bidirectional switch with a stable threshold
US6369640B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2000 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Jul 28, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/136
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A zero crossing control circuit of a bidirectional switch including two transistors of complementary types connected in parallel between the gate of the bidirectional switch and the main reference terminal of the bidirectional switch, the gate of the bidirectional switch being connected to a control source via a first resistor, and each of the control terminals of the transistors being connected to the second main terminal of the bidirectional switch via a second resistor of high value, a zener diode being interposed between the second resistor and each of the control terminals according to a biasing adapted to turning on each of the transistors when the zener threshold is exceeded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.