Power supply configurations and PWM edge control

An apparatus includes a controller a current mode controller that produces an output voltage by supplying output current from at least one power supply phase of a power supply to power a load. The controller produces an error current signal based on a difference between a magnitude of the output cur...

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Bibliographische Detailangaben
Hauptverfasser: Sreenivas, Venkat, Goswami, Bikiran, Tang, Benjamim, Bellefeuille, Todd, Peng, Kang
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An apparatus includes a controller a current mode controller that produces an output voltage by supplying output current from at least one power supply phase of a power supply to power a load. The controller produces an error current signal based on a difference between a magnitude of the output current supplied from the power supply to a load and a phase current setpoint. Based on a magnitude of the error current signal, control a pulse width setting of a pulse width modulation signal controlling the at least one power supply phase. The controller varies a leading edge and a falling edge of a pulse width ON-time of the pulse width modulation signal over each of multiple control cycles depending on variations in the magnitude of the pulse width setting.