DIGITAL PWM MODULATOR WITH FAST DYNAMIC RESPONSE AND FINE RESOLUTION
摘要
<p>A pulse width (PWM) controller for a voltage converter having at least one switch, an Analog to Digital Converter (ADC) circuit for digitizing inputted state variables including a feedback voltage from an output of the voltage converter and a reference voltage for setting the output of the voltage converter and providing a digital error signal, and a Proportional Integration and Derivation (PID) circuit receiving the digital error signal and providing a digital duty cycle signal. The controller including a Digital to Analog Converter (DAC) circuit for converting the digital duty cycle signal into an analog DAC output signal; and a comparator circuit for comparing a first signal including the DAC output signal with a reference signal for generating a pulse width modulated control signal for controlling the switching of the at least one switch of the voltage converter.</p>
申请公布号
WO2008140734(A1)
申请公布日期
2008.11.20
申请号
WO2008US05892
申请日期
2008.05.08
申请人
INTERNATIONAL RECTIFIER CORPORATION;WU, WENKAI;BOYDEN, KEN;HAMZE, RAMI