Patent ID: 7489533
Filing Date: 2009-02-10
Classification: H02M,H05B

Abstract:
1. An electrical inverter comprising: an electrical pulse start device operable to receive a first input indicative of a primary alternating current, the electrical pulse start device generating a first output responsive to a zero crossing of the first input; an electrical pulse duration device operable to receive a second input indicative of a load current and a third input indicative of a direct current (DC) input voltage, the electrical pulse duration device being operable to generate a second output responsive to the second and third inputs; a time delay device operable to receive the first output and the DC input voltage, the time delay device introducing a time delay to generate a delayed first output; a logic device operable to receive the delayed first output and the second output to generate a plurality of control signals; and a plurality of switches operable to convert the DC input to the primary alternating current in response to receiving the plurality of control signals.