Patent ID: 11949383
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 24:
25. A system comprising:
a supply generator including a magnetic stage having a first set of switches, a second set of switches, and a third set of switches; and
a controller configured to control the magnetic stage by:
at a start of a cycle for a first phase, turning on the first set of switches to implement a buck-mode during the first phase;
observing a current iL though an inductor in the magnetic stage;
comparing the observed inductor current iL to at least one of: a reference peak current ip or the reference peak current ip minus a compensating ramp;
in response to the observed inductor current iL reaching one of the reference peak current ip or the reference peak current ip minus the compensating ramp before reaching an on-time duration, turning on the second set of switches to enter a final phase of the cycle;
in response to the on-time duration of the first phase exceeding a specified value before the observed inductor current iL reaches one of the reference peak current ip or the reference peak current ip minus the compensating ramp, ending the first phase and automatically turning on the third set of switches to enter an intermediate-phase buck+buck-boost phase, wherein the intermediate-phase buck+buck-boost phase is automatically entered within a switching cycle of the magnetic stage; and
in response to the observed inductor current iL reaching one of the reference peak current ip or the reference peak current ip minus the compensating ramp while in the intermediate-phase buck+buck-boost phase, turning on the second set of switches to enter the final phase of the cycle.