Common mode ground fault signal detection circuit

Details Common mode ground fault signal detection circuit Common mode ground fault signal detection circuit

1997-10-10

1999-03-02

Elms, Richard T.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

361 45, H02H 300

Patent

active

058779264

ABSTRACT:
A circuit for driving a load. In one embodiment, the load is driven by an inverter circuit having a full bridge circuit divided by inductive elements to provide cross conduction protection. In another embodiment, first and second converter circuits are coupled to the inverter circuit with the inverter and converter circuits having common circuit elements. In a further embodiment, a common mode inductor is inductively coupled to a power circuit for detecting a common mode signal generated by a load current return path disruption. The common mode inductor is coupled to a control circuit for limiting current to the load.

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