Patent ID: 8659925

Claim:
An active rectification system, comprising: a three-level active rectifier, the three-level active rectifier including at least three switches, the at least three switches having one input and three outputs and being selectively switchable between an upper state that connects the input to a first of the three output, a center state that connects the input to a second of the three output, and a lower state that connects the input to a third of the three output; a pulse width modulation (PWM) control portion in communication with the at least three switches, the PWM control portion is configured and disposed to create an upper carrier signal and a lower carrier signal, and the PWM control portion is configured and disposed to selectively switch the at least three switches between the upper state, the center state, and the lower state in response to a phase disposition of the upper carrier signal and the lower carrier signal; and a three phase power source coupled to the three-level rectifier.