Linear charger where the material temperature directly...

Details Linear charger where the material temperature directly... Linear charger where the material temperature directly...

2005-08-16

2008-09-02

Leja, Ronald W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Circuit interruption by thermal sensing

Reexamination Certificate

active

07420792

ABSTRACT:
Methods and apparatus are disclosed for protecting circuits from damages caused by elevated temperatures. Presented embodiments illustrate IC thermal protection circuits that shut down power delivery circuits when the circuit temperature reaches a predefined upper threshold and restart the circuit when the circuit cools down to a predefined lower threshold. Other embodiments provide soft shutdown and soft restart, where not only the temperature range between the shutdown and the restart is predetermined, but also the time between the start of a shutdown process and the complete shutdown is controllable.

REFERENCES:
patent: 3796943 (1974-03-01), Nelson et al.
patent: 5977840 (1999-11-01), Connell et al.
patent: 6331764 (2001-12-01), Oglesbee et al.
patent: 6600641 (2003-07-01), Oglesbee et al.
patent: 6781354 (2004-08-01), Zhang

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