09872346 cites 10 patents.

A phase controller includes a plurality of pulse width modulation (PWM) circuits, a plurality of switching devices, a computing unit, and a latency generator. The plurality of PWM circuits output pulse signals. The plurality of switching devices are coupled to the respective plurality of PWM circuits, and switch on and off based on the pulse signals. The computing unit calculates the pulse signals to be output from the plurality of PWM circuits, based on outputs of the plurality of switching devices. The latency generator generates latency in any of the pulse signals so that edge positions of the pulse signals output from the plurality of PWM circuits do not collide with each other, wherein the pulse signals change values at the edge positions.

Title
Phase controller apparatus and methods
Application Number
14/865722
Publication Number
9872346 (B2)
Application Date
September 25, 2015
Publication Date
January 16, 2018
Inventor
Yukisato Miyazaki
San Jose
CA, US
Takuya Kurishita
San Jose
CA, US
Assignee
Cypress Semiconductor Corporation
CA, US
IPC
H03H 11/22
H05B 33/08
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