| 摘要 |
A method and apparatus for a wave-modulated switching frequency voltage regulator VR are described. In one embodiment, a controller dynamically adjusts a phase switching frequency of the VR to render the VR immune from synchronization between an IC load frequency and the VR phase switching frequency. In one embodiment, the method includes generation of a dynamic switching frequency waveform according to a wave modulated reference voltage. The dynamic switching frequency waveform may comprise a plurality of pulses with a modulated frequency. At least two, time-shifted pulse width modulated (PWM) waveforms may be fired to corresponding drivers of a multi-phase switching VR in response to such dynamic switching waveform. In one embodiment, PWM waveforms are fired to the drivers of the regulator in response to a frequency of the pulses of the dynamic switching frequency waveform to provide continuous adjustment of the VR switching frequency. Other embodiments are described and claimed.
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