Circuit arrangement
US4119868A · kind A · utility
2Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1977 |
| Grant date | Oct 10, 1978 |
| Priority date | — |
| Expiry date | Mar 23, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B1/04
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A circuit arrangement for controlling the energization and de-energization of a coil comprises a switching transistor for controlling the coil and which is not provided with protection against avalanche breakdown, a resistor being provided in parallel with the base-emitter path of the switching transistor to prevent overload of the switching transistor during avalanche operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.