Transistor switching circuit
US4123670A · kind A · utility
5Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 6, 1978 |
| Grant date | Oct 31, 1978 |
| Priority date | — |
| Expiry date | Dec 6, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/601
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A transistor switching circuit arrangement for switching at least one switching transistor on and off wherein, in order to achieve low power dissipation by delaying the change which occurs in base current to the cut-off value on conversion into the blocked state and by a subsequent brief disruptive operation of the base emitter section and in order to achieve fast switching on, there is provided a choke coil through part of which the base-emitter current of said switching transistor is fed and through part of which the current being switched is passed in positive feedback mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.