Power amplifier having bias circuit with temperature compensation
US4302727A · kind A · utility
10Cited by
0References
10Claims
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Assignee
Inventor
Key dates
| Filing date | Nov 5, 1979 |
| Grant date | Nov 24, 1981 |
| Priority date | — |
| Expiry date | Nov 5, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/307
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In a single-ended push-pull power amplifier, a transistor is provided which detects the collector power dissipation of one of complementary power transistors. The power dissipation detecting transistor is thermally coupled with a temperature compensation transistor in a bias circuit coupled to the complementary transistors for flowing a substantially constant idle or bias current through the complementary power transistors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.