Circuitry comprising a loop filter

Pulse width modulation (PWM) driver circuitry comprising: a loop filter configured to receive an analog input signal and to output a digital loop filter output signal based on the analog input signal and an analog feedback signal; and a PWM modulator configured to receive a digital signal based on t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Zhang, Lingli, Melanson, John L, Hoff, Thomas H, King, Eric J
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Pulse width modulation (PWM) driver circuitry comprising: a loop filter configured to receive an analog input signal and to output a digital loop filter output signal based on the analog input signal and an analog feedback signal; and a PWM modulator configured to receive a digital signal based on the digital loop filter output signal and to output a PWM signal, wherein the PWM driver circuitry further comprises a feedback path coupled to an output of the PWM driver circuitry for the analog feedback signal.