Temperature-protected electrical switch component

Details Temperature-protected electrical switch component Temperature-protected electrical switch component

1999-03-18

2000-05-09

Fleming, Fritz

Electricity: electrical systems and devices

Safety and protection of systems and devices

Circuit interruption by thermal sensing

307117, 327513, 361100, H02H 504

Patent

active

060612215

ABSTRACT:
The electrical switch component has two temperature sensors. The first temperature sensor is provided at that location of the component which is warmest during operation. The first sensor switches the component off when a first, upper threshold value is reached, and switches the component on when the temperature falls below a second, lower threshold value. The oscillation owing to the first temperature sensor is switched on and off by the second temperature sensor, which is arranged remote from the first temperature sensor at a location that is less warm than the first temperature sensor. The second sensor has lower threshold values than the first temperature sensor.

REFERENCES:
patent: 4345218 (1982-08-01), Congdon et al.
patent: 5001593 (1991-03-01), Zitta et al.
patent: 5070322 (1991-12-01), Fujihira
patent: 5267118 (1993-11-01), Marshall et al.
patent: 5563760 (1996-10-01), Lowis et al.
patent: 5886515 (1999-03-01), Kelly
"TEMPEFET" Step Towards The Ideal Power Semiconductor Switch (Brauschke et al.), Siemens Components, vol. 27, No. 6, 1989, pp. 228-232.
"Low-Side Switches Unlimited" (Reinmuth), Components XXXI, No. 3, 1996, pp. 18-20.
"Smart SIPMOS Components" (Rabl), 8229 Siemens Components, vol. 25, No. 6, Berlin 1990, pp. 233-239.

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