Static relay with a thermal protection
Abstract
The principle and the design of a static relay using a power FET as switch function and able to replace electromechanical relays and fuses usually used on spacecraft power lines are described. This device enables a full protection of the power sources and includes a self thermal protection based on a thermal-electrical analogy which permits the calculation and limitation of the FET temperature both in static state and during transient state. The description and the test results of a breadboard are given and the final characteristics of the product which will be built in thick film technology are presented.
- Publication:
-
In ESA 4th ESTEC Spacecraft Power-Conditioning Seminar p 175-181 (SEE N83-21006 11-20
- Pub Date:
- September 1982
- Bibcode:
- 1982scpc.rept..175F
- Keywords:
-
- Circuit Protection;
- Electric Relays;
- Field Effect Transistors;
- Spacecraft Electronic Equipment;
- Thermal Protection;
- Power Conditioning;
- Semiconductor Junctions;
- Thick Films;
- Electronics and Electrical Engineering