Transistor drive circuit of power converter operating in a wide voltage range
US7471121B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2006 |
| Grant date | Dec 30, 2008 |
| Priority date | — |
| Expiry date | Jan 14, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/22
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A transistor drive circuit of a power converter is developed for operating in a wide voltage range. It includes an N-type high-side transistor, a P-type high-side transistor and an N-type low-side transistor. A voltage clamp device is connected to the gate of the N-type high-side transistor to limit the maximum output voltage. A detection circuit is coupled to detect the supply voltage of the transistor drive circuit to generate a disable signal in response to the voltage level of the supply voltage. The disable signal is coupled to disable the P-type high-side transistor once the voltage level of the supply voltage is higher than a threshold voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.