Patent ID: 8729739
Filing Date: 2014-05-20
Classification: H01L,H02M,H03K

Abstract:
1. A circuit breaker comprising first and second JFETs the first JFET comprising a first gate, first drain and first source connection, the second JFET comprising a second gate, second drain and second source connection; the first and second sources being operatively connected to each other to form a common-source connection, the first and second drains adapted to be connected to an external circuit having a current flowing therein, the circuit breaker operating to open the external circuit when the current flowing through the JFETs exceeds a predetermined threshold, the first and second gates, and common-source connection being operatively connected to a gate driver circuit which causes the JFETs to turn off when the predetermined threshold is exceeded; whereby when a predetermined threshold is exceeded, current flows through the common-source connection, into the gate driver circuit, and into the second gate which causes the gate driver circuit to turn off the first and second JFETs and open the circuit breaker.