Patent ID: 7504800
Filing Date: 2009-03-17
Classification: H02J

Abstract:
1. A management circuit for a power supply, said power supply being configured to supply a first voltage level and a ground voltage level, comprising: a first management circuit terminal coupled to a positive supply terminal of said power supply, said positive supply terminal being configured to provide said first voltage level; a second management circuit terminal coupled to a ground terminal of said power supply, said ground terminal being configured to provide said ground voltage level; a switch; a processor coupled to said switch for controlling said switch; a first output terminal, said switch being coupled to said first management circuit terminal and said first output terminal for controllably providing said first voltage level to said first output terminal; a first impedance circuit coupled to said second management circuit terminal; and a second output terminal coupled to said first impedance circuit, wherein said processor controls said switch opening and said switch closing responsive to both parameters sensed through said first output terminal and said second output terminal and previous state information pertaining to a present operating state of said management circuit.