Patent ID: 7855865
Filing Date: 2010-12-21
Classification: H02J

Abstract:
1. A portable device comprising a circuit, wherein the circuit comprises: a first component configured to be coupled across power supply inputs of a load, said power supply inputs configured for receipt of power from an external power source, said first component configured to provide over voltage protection for said load; and a second component coupled to the first component and configured to be coupled to said load, said second component configured to provide over current protection for said load and for said first component, wherein said second component provides over current protection to said load at least when the second component provides over current protection to said first component; wherein said second component comprises a first connecting member configured to connect said first component to a first power supply input of said power supply inputs and a first current resisting component; wherein said first connecting member is configured to disconnect said first component from said first power supply input during an over current event; wherein said second component further comprises a second connecting member configured to connect said first component to a second power supply input of said power supply inputs and a second current resisting component; and wherein said second connecting member is configured to disconnect said first component from said second power supply input during said over current event if said first connecting member remains connected to said first component and said first power supply input during said over current event; and wherein said second component is configured to alter a signal communicated to a control input of said load when said first component is disconnected from said first power supply input.