Power transforming apparatus with digital control unit

摘要

A power transforming apparatus implements a transformation of an energy signal and comprises a control unit, a pulse width modulation (PWM) unit, a transformation unit, and a slope compensation unit. The control unit outputs a target power signal. The PWM unit is coupled with the control unit and generates a switch signal. The transformation unit is coupled with the PWM unit, and implements a power transforming of the energy signal to output an energy transformation signal according to the switch signal. The slope compensation unit is coupled with the control unit and the PWM unit, and implements a slope compensation, according to the target power signal and a feedback signal, to output a compensation signal to the PWM unit. The switch signal is generated according to the target power signal and the compensation signal.

主权项

1. A power transforming apparatus implementing a transformation of an energy signal, the power transforming apparatus comprising:
a control unit outputting a target power signal; a pulse width modulation (PWM) unit coupled with the control unit and generating a switch signal; a transformation unit coupled with the PWM unit, and implementing a power transforming of the energy signal to output an energy transformation signal according to the switch signal; and a slope compensation unit coupled with the control unit and the PWM unit, and implementing a slope compensation, according to the target power signal and a feedback signal, to output a compensation signal to the PWM unit, wherein the switch signal is generated according to the target power signal and the compensation signal, wherein the control unit further outputs a descending tendency signal to the slope compensation unit, and the slope compensation unit processes the target power signal to generate a ramp signal according to the descending tendency signal, and outputs the compensation signal according to the ramp signal and the feedback signal.