Charging/discharging apparatus
AssigneesKabushiki Kaisha Toshiba, Toshiba Infrastructure Systems & Solutions Corporation
InventorsYukitaka Monden, Yoichi Morishima
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Abstract
A charging/discharging apparatus according to the present embodiment comprises first and second electrode terminals inputting or outputting direct-current power. First to third switching elements are connected in series between the first electrode and the second electrode. A first electric storage is connected in parallel to the second switching element located between the first switching element and the third switching element. A second electric storage is connected in parallel to the third switching element. First to third diodes are respectively connected in antiparallel to the first to third switching elements.
Claims10
A charging/discharging apparatus comprising:
- a controller;
- first and second electrode terminals inputting or outputting direct-current power;
- first to third switching elements connected in series between the first electrode and the second electrode;
- a first electric storage connected in parallel to the second switching element located between the first switching element and the third switching element;
- a second electric storage connected in parallel to the third switching element;
- and
- first to third diodes respectively connected in antiparallel to the first to third switching elements,
- wherein the controller:
- when discharging the first electric storage, increases a duty ratio of the second switching element to be higher than a duty ratio of the first switching element, and
- when discharging the second electric storage, increases the duty ratio of the third switching element to be higher than the duty ratio of the first switching element.
Dependencies are inferred from the claim text.