Patent ID: 7701190
Filing Date: 2010-04-20
Classification: H02M

Abstract:
1. A control circuit for a DC-to-DC converter including a plurality of channels for converting an input voltage to an output voltage, the control circuit comprising: an oscillator for providing a clock signal to establish an operation frequency of said converter, wherein said oscillator has output coupled to a current feedback circuit of said converter, whereby a sampling frequency of said current feedback circuit is increased responsive to said increase in frequency of said oscillator for increasing a feedback response of said converter during said quick transient response period; and a load transient detector having an input coupled to said output voltage to generate a quick response signal to trigger a quick transient response period in response to a load transient, said load transient detector having an output coupled to said oscillator for increasing a frequency of said clock signal during said quick transient response period responsive to said quick response signal.