Control method of power supply apparatus, the power supply apparatus, and power supply system
AssigneeKYOCERA Corporation
InventorsHirokazu Inoue, Masahiro Baba
Life of this patent
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Abstract
The disclosure reduces the occurrence of an inrush current upon electrical connection of a storage cell, allowing immediate use. A power supply apparatus is configured to convert DC power from a solar cell and a storage cell into AC power and includes: a first capacitor disposed between the solar cell and the storage cell; and a controller configured to charge the first capacitor with power from the solar cell or a power grid and, after a first voltage of the first capacitor exceeds a second voltage of the storage cell, to electrically connect the storage cell with the first capacitor.
Claims7
A power supply apparatus, configured to convert DC power from a solar cell and a storage cell into AC power, and comprising:
- a first capacitor having a first end and a second end, the first end of the first capacitor being connected to ground, the second end of the first capacitor being electrically connected to the solar cell and the storage cell;
- a second capacitor having a first end and a second end, the first end of the second capacitor being connected to ground, the second end of the second capacitor being electrically connected to the storage cell and the first capacitor;
- a controller configured to charge the first capacitor and the second capacitor with the power from the solar cell or a power grid and, if voltage of the second capacitor becomes equal to voltage of the storage cell, to electrically connect the storage cell with the first capacitor and the second capacitor.
A power supply system comprising:
- a power supply apparatus configured to convert DC power from a solar cell and a storage cell into AC power;
- a storage cell;
- and
- a solar cell,
- wherein the power supply apparatus includes a first capacitor having a first end and a second end, the first end of the first capacitor being connected to ground, the second end of the first capacitor being electrically connected to the solar cell and the storage cell, a second capacitor having a first end and a second end, the first end of the second capacitor being connected to ground, the second end of the second capacitor being electrically connected to the storage cell and the first capacitor, and a controller configured to charge the first capacitor and the second capacitor with the power from the solar cell or a power grid and, if voltage of the second capacitor becomes equal to voltage of the storage cell, to electrically connect the storage cell with the first capacitor and the second capacitor.
A control method of a power supply apparatus comprising:
- charging a first capacitor and a second capacitor with a power from a solar cell or a power grid, the first capacitor having a first end and a second end, the first end of the first capacitor being connected to ground, the second end of the first capacitor being electrically connected to the solar cell and a storage cell, and the second capacitor having a first end and a second end, the first end of the second capacitor being connected to ground, the second end of the second capacitor being electrically connected to the storage cell and the first capacitor;
- and
- electrically connecting, if voltage of the second capacitor becomes equal to voltage of the storage cell, the storage cell with the first capacitor and the second capacitor.
Dependencies are inferred from the claim text.