Patent ID: 11949335
Assignee: MICROCHIP TECHNOLOGY INCORPORATED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. An apparatus, comprising:
a four switch buck-boost converter (FSBBC) to receive an input voltage potential from a voltage supply; and
a controller to:
convey pulse-width modulation (PWM) signals to the FSBBC;
control the FSBBC via the PWM signals in a buck mode when a duty cycle control signal is less than a predetermined maximum buck value; and
control the FSBBC via the PWM signals in a cascaded buck-boost mode (CBB mode) when the duty cycle control signal is greater than the predetermined maximum buck value, wherein a duty cycle of at least a portion of the PWM signals transitions linearly with the duty cycle control signal from the buck mode to the CBB mode.