| 摘要 |
A control circuit for an inverter according to the present invention comprises a PWM circuit and a controller. The PWM circuit generates switching signals in accordance with a PWM control signal. The switching signals are coupled to switch a transformer through transistors for generating an output of the inverter. The controller is coupled to receive a command signal and an input signal for generating the PWM control signal. The input signal is correlated to an input voltage waveform of the inverter. The command signal is utilized to determine a power level of the output of the inverter. The advantages of the control circuit are lower cost, small size, good power factor and higher reliability. |
