Integrated pulse-width modulation circuit with thermal shutdown circuit
US5675297A · kind A · utility
35Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1996 |
| Grant date | Oct 7, 1997 |
| Priority date | — |
| Expiry date | Apr 29, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2017/0806
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An integrated pulse-width modulation circuit with conditional temperature protection circuitry includes logic circuitry, a power output device, thermal shutdown circuitry to disable the power output device when the die temperature exceeds a predetermined limit, and a masking circuit that disables the thermal shutdown circuit during short term thermal increases such as those that occur when an inductive load turn off event takes place.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.