Transistor package having a series connected thermistor for protection from thermal destruction
US5763929A · kind A · utility
27Cited by
6References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 16, 1997 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Jun 16, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2017/0806
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A transistor package includes a power bipolar transistor chip having a thermistor on and electrically connected to a bipolar transistor collector electrode. The thermistor exhibits a positive thermal coefficient (PTC) resistance characteristic and is series connected to the transistor collector. Collector current is interrupted by thermistor response to heat generated during excess transistor collector current events to thereby avoid thermal destruction of the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.