Electricity: electrical systems and devices – Safety and protection of systems and devices – Circuit interruption by thermal sensing
Patent
1998-04-27
1999-12-21
Jackson, Stephen W
Electricity: electrical systems and devices
Safety and protection of systems and devices
Circuit interruption by thermal sensing
361 18, 361115, H02H 500
Patent
active
060057610
ABSTRACT:
An overheat protection device 10 that can perform the immediate resetting of the power cutoff control state or the power limit control state when the overheat state of the drive circuit (power MOSFET) is eliminated. A semiconductor switching apparatus and an intelligent power module 30 are also provided which use the overheat protection device 10. The overheat protection device 10 monitors the energized state of the drive circuit that drives the load 32; when it detects the overheat state of the drive circuit during the energized state, resets the energized state to limit or stop the driving of the load 32; holds the power limit control state or the power cutoff control state and monitors the overheat state in synchronism with the timing signal 102b having a predetermined cycle; and, when the absence of the overheat state is detected during the monitoring, generates the gate control signal 108a to reset the power limit control state or the power cutoff control state.
REFERENCES:
patent: 5115225 (1992-05-01), Dao et al.
Izawa Takaaki
Uchikura Tsuyoshi
Jackson Stephen W
Yazaki -Corporation
LandOfFree
Overheat protection device, semiconductor switch apparatus using does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Overheat protection device, semiconductor switch apparatus using, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Overheat protection device, semiconductor switch apparatus using will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-511354