US 12,249,916 B2
Hybrid DC-DC variable switched capacitor converter and method of operation
Kaustubh Kumar, Uttar Pradesh (IN); Burle Naga Satyanarayana, Andhra Pradesh (IN); Rakesh Kumar Polasa, Karnataka (IN); and Satish Anand Verkila, Karnataka (IN)
Assigned to SILICONCH SYSTEMS PVT LTD, Karnataka (IN)
Filed by SILICONCH SYSTEMS PVT LTD, Karnataka (IN)
Filed on Jan. 4, 2023, as Appl. No. 18/093,223.
Claims priority of application No. 202241000300 (IN), filed on Jan. 4, 2022.
Prior Publication US 2023/0216413 A1, Jul. 6, 2023
Int. Cl. H02M 3/158 (2006.01); H02M 1/00 (2006.01); H02M 1/14 (2006.01)
CPC H02M 3/1584 (2013.01) [H02M 1/0095 (2021.05); H02M 1/143 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A hybrid variable switched capacitor DC-DC power converter, said converter comprising:
at least one power switching network supporting a plurality of power conversion modes and characterised in that:
an input terminal connected to an input power source and an associated input capacitor;
an output terminal connected to a load and an associated output capacitor to obtain a desired output voltage or output load current regulation;
at least six switches;
at least one inductor; and
one or more flying capacitor;
wherein the plurality of power conversion modes includes a Variable Switched Capacitor (VSC) Mode, 2:1 Halving Switched Capacitor (HSC) Mode, a Synchronous Buck Mode, and a Direct Connection Mode, wherein the converter is operated in any of a switching or non-switching mode to obtain a set of step-down power conversion schemes,
wherein each power conversion scheme is selected for a predefined range of step-down ratios to maximize efficiency of power conversion, and
wherein each power conversion scheme is selected at a time based on a load type and input power source type.