Process and device for sending electrical current into a circuit using a transistor
US4772804A · kind A · utility
10Cited by
16References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1987 |
| Grant date | Sep 20, 1988 |
| Priority date | — |
| Expiry date | Mar 26, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q11/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The process and the device enable the electrical powering of a circuit having a conductor (1) with high thermal inertia by means of a transistor (3) with low thermal inertia. According to the invention, the device comprises a current limiter circuit (4,5,7,11), a voltage detector circuit (8) and a control microprocessor (6) which, according to a pre-established program, controls the flowing and stoppage of current in the power transistor (3) controlling the powering of the conductor (1) with high thermal inertia. Application to the control of lights in automobile vehicles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.