IMPROVEMENTS IN SINGLE INDUCTOR MULTIPLE OUTPUT REGULATORS

• Main Authors: VARLAMAVA, Volha, NERI, Filippo, RUSCIO, Danilo, BONGIOVANNI, Simone, PETRICAROLI, Stefano
• Format: Patent
• Language: English
• Published: 05.12.2019
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONTROLLING; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; PHYSICS; REGULATING; SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES

Disclosed are control circuits for a SIMO voltage regulator, and associated voltage regulators. The control circuit comprises output switches for selective connection of each output to a first inductor terminal; and a controller. In an embodiment, the controller such that each output is periodically connected to the first inductor terminal for a respective connected time duration which are each dependent on at least one historical voltage value sampled in an earlier switching period on at least one of the outputs. In another embodiment, the output for which at least a first portion of its corresponding connected time duration is first calculated is periodically switched. In yet another embodiment, it is determined whether the SIMO is in a locked condition; whether the locked condition is valid; and if invalid, a respective alternative voltage regulator is used to supply one or more of the outputs.