US 11,949,335 B2
Converters and related apparatuses and methods
Santosh Bhandarkar, Chandler, AZ (US); and Alex Dumais, Boise, ID (US)
Assigned to Microchip Technology Incorporated, Chandler, AZ (US)
Filed by Microchip Technology Incorporated, Chandler, AZ (US)
Filed on Jan. 28, 2022, as Appl. No. 17/649,214.
Application 17/649,214 is a continuation of application No. 16/843,726, filed on Apr. 8, 2020, granted, now 11,239,696.
Claims priority of provisional application 62/854,031, filed on May 29, 2019.
Prior Publication US 2022/0149659 A1, May 12, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 50/10 (2016.01); H02M 1/08 (2006.01); H02M 3/158 (2006.01); H02J 50/12 (2016.01); H02J 50/80 (2016.01)
CPC H02M 3/1582 (2013.01) [H02M 1/08 (2013.01); H02J 50/10 (2016.02); H02J 50/12 (2016.02); H02J 50/80 (2016.02)] 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a converter to convert an input voltage potential to an output voltage potential, the input voltage potential and the output voltage potential including direct current (DC) voltage potentials; and
a controller to:
generate pulse width modulation (PWM) signals responsive to a duty cycle control signal;
control the converter via the PWM signals in a buck mode when the duty cycle control signal is less than a predetermined maximum buck value; and
control the converter 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.