Digital PWM modulator with fast dynamic response and fine...

Details Digital PWM modulator with fast dynamic response and fine... Digital PWM modulator with fast dynamic response and fine...

2011-05-17

2011-05-17

Nguyen, Matthew V (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C323S288000

Reexamination Certificate

active

07944193

ABSTRACT:
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.

REFERENCES:
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International Search Report and Written Opinion in corresponding International Application No. PCT/US2008/05892 mailed Aug. 29, 2008.

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