Patent ID: 8933677
Filing Date: 2015-01-13
Classification: H02M,Y02B

Abstract:
1. A voltage regulator device, comprising: a variable frequency voltage regulator coupled between a power supply and a load circuit; a sense circuit directly connected to an output of the variable frequency voltage regulator, the sense circuit to sense a signal corresponding to an output condition of the variable frequency voltage regulator, wherein the sense circuit is a current sense circuit and the output condition is an amount of output current from the variable frequency voltage regulator; a frequency adjust circuit connected between the sense circuit and the variable frequency voltage regulator, the frequency adjust circuit to dynamically adjust an operating frequency of the variable frequency voltage regulator based on the signal sensed by the sense circuit during operation of the variable frequency voltage regulator; and a delay circuit coupled between the sense circuit and the frequency adjust circuit, wherein the frequency adjust circuit is configured to dynamically adjust the operating frequency of the variable frequency voltage regulator over a range of frequencies for a corresponding range of sensed output conditions to provide a substantially optimal operating frequency for a current load of the load circuit, and to adjust the frequency to improve efficiency for the sensed output condition.