Patent ID: 7006762

Claim:
A high efficiency motor control, said high efficiency motor control comprising: a signal input port, said port receiving an input signal; an output port, said output port for outputting a current to a load; a variable duty cycle oscillator, said variable duty cycle oscillator providing an alternating current output, whereby said alternating current output is a function of the input signal; a positive voltage source input port, said positive voltage source input port receiving a direct current positive voltage; a negative voltage source input port, said negative voltage source input port receiving a direct current negative voltage that is substantially lower than said direct current positive voltage; a positive switching signal circuit, said positive switching signal circuit receiving the alternating current output, a sample from the positive voltage source input port, a sample from the negative voltage source input port, and a stable input voltage, and outputting a positive supply switching signal, whereby the positive supply switching signal is a function of the alternating current output signal, the sample signal from the positive voltage source input port, and the stable voltage signal.