Master/slave power supply switch driver circuitry

A power supply circuit comprising:

• a first driver circuit, the first driver circuit comprising:
• a first input to receive a pulse width modulation signal;
• a phase generator circuit to derive multiple phase control signals from the pulse width modulation signal;
• a switch driver circuit configured to utilize a first phase control signal of the multiple phase control signals to control a first power converter phase in the power supply;
• and
• an output configured to output a second phase control signal of the multiple phase control signals to a second driver circuit.

A power supply circuit comprising:

• a first chip circuit, the first chip circuit comprising:
• an input to receive mode setting information to configure the first chip circuit as a master, the first chip circuit configured to utilize the mode setting information inputted to the first chip circuit to identify a resource selected amongst multiple possible resources from which to receive at least one phase signal;
• a circuit configured to receive the at least one phase signal from the identified resource selected amongst the multiple possible resources;
• and
• a switch driver circuit configured to control switching of a first set of power converter phases in the power supply circuit based on the at least one phase signal.

A method comprising:

• in a first switch driver chip circuit:
• receiving a pulse width modulation signal;
• deriving multiple phase control signals from the pulse width modulation signal to control multiple power converter phases in a power supply;
• utilizing a first phase control signal of the multiple phase control signals to control a first power converter phase in a power supply;
• and
• outputting a second phase control signal of the multiple phase control signals to a second switch driver chip circuit.