A Novel Bi-Stable Thermal Protection Circuit

A new type of bi-stable thermal protection circuit and its avalanche operational mode are presented. We focuses on the theoretical analysis of avalanche state transition, as well as on the mechanism of hysteresis. Compared with the conventional thermal protection circuit, a three-fold transition speed from one state to another is achieved, and the stability of this circuit has also been improved due to the intrinsic stability of bi-stable system.