Switching clock phase shift for multi-port buck-boost converter

A method for a Universal Serial Bus Type-C Power Delivery (USB-C/PD) controller, the method comprising:

• generating, by a first phased clock generator in the USB-C/PD controller, a first phase-shifted clock signal by shifting a clock signal by a first phase with respect to a reference clock signal wherein the reference clock signal comprises a first frequency and the clock signal comprises a second frequency that is greater than the first frequency;
• generating, by a second phased clock generator in the USB-C/PD controller, a second phase-shifted clock signal by shifting the clock signal by a second phase with respect to the reference clock signal
• outputting, by a first USB-C/PD port, power in response to a first control signal, the first control signal being based on the first phase-shifted clock signal;
• and
• outputting, by a second USB-C/PD port, power in response to a second control signal, the second control signal being based on the second phase-shifted clock signal.

An integrated circuit (IC) Universal Serial Bus Type-C Power Delivery (USB-C/PD) controller comprising:

• a first terminal to be coupled to a first USB-C/PD port;
• a second terminal to be coupled to a second USB-C/PD port;
• a reference clock generator to generate a reference clock signal with a first frequency;
• a clock generator to generate a clock signal with a second frequency, wherein the second frequency is greater than the first frequency;
• a first phased clock generator to generate a first phase-shifted clock signal by shifting the clock signal by a first phase with respect to the reference clock signal;
• and
• a second phased clock generator to generate a second phase-shifted clock signal by shifting the clock signal by a second phase with respect to the reference clock signal.