Patent ID: 11929679
Assignee: INFINEON TECHNOLOGIES AUSTRIA AG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A method comprising:
producing an output voltage by supplying phase current from at least one power supply phase of a power supply to power a load;
producing an error current signal based on a difference between a magnitude of first output current supplied from a first power supply phase to the load and a phase current setpoint;
based on a magnitude of the error current signal, controlling a pulse width setting of a pulse width modulation signal controlling the first power supply phase; and
varying a leading edge and a trailing edge of a pulse width ON-time of the pulse width modulation signal over each of multiple control cycles depending on variations in the magnitude of the pulse width setting;
the method further comprising: for a first control cycle of the multiple control cycles:
generating a first ramp signal;
deriving a pulse width signal from the pulse width setting, the pulse width signal representing an amount of time in which to activate high side switch circuitry in the power supply to convert an input voltage into the output voltage; and
controlling timing of the leading edge of the pulse width modulation control signal based on a magnitude of the pulse width signal with respect to the first ramp signal.