Patent ID: 7636011
Filing Date: 2009-12-22
Classification: H02J,H03K

Abstract:
1. An ORing element for use in a power supply, the ORing element comprising: a field effect transistor (FET) for electrical connection between an output of the power supply and a bus; a first bi-polar transistor, wherein an emitter of the first bi-polar transistor is electrically connected to a source of the FET, and wherein a collector of the first bi-polar transistor is electrically connected to a gate of the FET; and a second bi-polar transistor, wherein an emitter of the second bi-polar transistor is electrically connected to a base of the second bi-polar transistor and a base of the first bi-polar transistor, and wherein a collector of the second bi-polar transistor is electrically connected to a drain of the FET.