US 12,261,530 B2
Synchronous DC-DC power converter with a single power storage element
Donald Murray Terrace, Highgate (AU); Jordan Michael Hao-Jin Kilmartin, Morphett Vale (AU); Igor Abramov, Woodcroft (AU); and Luke Woolcock, Morphett Vale (AU)
Assigned to REDARC TECHNOLOGIES PTY LTD [AU/AU], (AU)
Appl. No. 18/023,794
Filed by REDARC TECHNOLOGIES PTY LTD., Morphett Vale (AU)
PCT Filed Aug. 24, 2021, PCT No. PCT/AU2021/050954
§ 371(c)(1), (2) Date Feb. 28, 2023,
PCT Pub. No. WO2022/056576, PCT Pub. Date Mar. 24, 2022.
Claims priority of application No. 2020903355 (AU), filed on Sep. 18, 2020.
Prior Publication US 2023/0318457 A1, Oct. 5, 2023
Int. Cl. H02M 3/158 (2006.01); H02M 1/00 (2006.01)
CPC H02M 3/158 (2013.01) [H02M 1/009 (2021.05); H02M 3/1582 (2013.01); H02M 1/0054 (2021.05)] 19 Claims
OG exemplary drawing
 
1. The synchronous DC-DC converter including:
a first converter input including a first input voltage that is electrically connected to a first bidirectional switch;
a second converter input including a second input voltage that is electrically connected to a second bidirectional switch;
a power storage element;
a third switch, wherein an output of the first converter input and or the second converter input is electrically connected to an input of the power storage element and to the third switch, the third switch is connected to a ground;
a fourth switch;
a fifth switch;
a converter output including an output voltage, wherein the output of the power storage element is connected to the fourth switch and to the fifth switch, the fourth switch is connected to the ground and the fifth switch is connected to the converter output in connection with a capacitor; and
a controller configured to control a cycle of conversion of the DC-DC converter with multiple phases by controlling each of the switches, where:
at least one boost phase has one of the first and second bidirectional switches ON to connect to the input of the power storage element, and the fourth switch ON to connect the output of the power storage element to the ground while all other switches are OFF;
at least one through phase has one of the first and second bidirectional switches ON to connect to the input of the power storage element, and the fifth switch ON to connect the output of the power storage element to the converter output while all other switches are OFF; and
at least one buck phase has the third switch ON to connect the ground to the input of the power storage element, and the fifth switch ON to connect the output of the power storage element to the converter output while all other switches are OFF.