Patent ID: 8917042

Claim:
A drive circuit for electromagnetic interference (EMI) reduction of power provided by a power line to a motor controller, the power line comprising at least a first alternating current (AC) line output and a second AC line output, said drive circuit comprising: an EMI filter having at least a first input terminal, a second input terminal, a first output terminal, and a second output terminal, said first input terminal configured to be coupled to the first AC line output and said second input terminal configured to be coupled to the second AC line output; at least two series-coupled filter capacitors positioned after said EMI filter; a rectifier portion comprising a first rectifier input terminal coupled to said first output terminal and a second rectifier input terminal coupled to said second output terminal; and a power factor correction (PFC) choke comprising a first end and a second end, said first end coupled to said second output terminal and to said second rectifier input terminal, said second end coupled between said at least two series-coupled filter capacitors.