Power supply apparatus and power supply method
First Claim
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1. A power supply apparatus comprising:
- a plurality of secondary batteries connected in series;
a first output terminal that outputs a composite voltage of all of the plurality of secondary batteries, the first output terminal being configured to be connected to a first load;
a second output terminal that outputs an output of a part of the plurality of secondary batteries as a partial voltage, the second output terminal being configured to be connected to a second load, the first load and the second load being different from each other;
a detecting unit that detects states of the plurality of secondary batteries; and
a changing unit that changes an order of series connection of the plurality of secondary batteries based on a detection result of the detecting unit in such a manner that the composite voltage of a part of the plurality of secondary batteries that is a secondary battery in a relatively good state as well as a part of the plurality of secondary batteries that is a secondary battery other than the secondary battery in a relatively good state is supplied to the first load via the first output terminal, and the partial voltage is outputted from the part of the plurality of secondary batteries that is a secondary battery in a relatively good state and supplied to the second load via the second output terminal, so that power from the secondary battery in a relatively good state is supplied to both the first load and the second load.
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Abstract
A power supply apparatus is provided that has a plurality of secondary batteries connected in series, outputs a composite voltage of all of the secondary batteries, and outputs an output of a part of the secondary batteries as a partial voltage. The power supply apparatus includes a detecting unit that detects states of the secondary batteries, a changing unit that changes an order of series connection of the plurality of secondary batteries based on a detection result of the detecting unit in such a manner that the partial voltage is outputted from a secondary battery that is in a relatively good state.
15 Citations
13 Claims
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1. A power supply apparatus comprising:
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a plurality of secondary batteries connected in series; a first output terminal that outputs a composite voltage of all of the plurality of secondary batteries, the first output terminal being configured to be connected to a first load; a second output terminal that outputs an output of a part of the plurality of secondary batteries as a partial voltage, the second output terminal being configured to be connected to a second load, the first load and the second load being different from each other; a detecting unit that detects states of the plurality of secondary batteries; and a changing unit that changes an order of series connection of the plurality of secondary batteries based on a detection result of the detecting unit in such a manner that the composite voltage of a part of the plurality of secondary batteries that is a secondary battery in a relatively good state as well as a part of the plurality of secondary batteries that is a secondary battery other than the secondary battery in a relatively good state is supplied to the first load via the first output terminal, and the partial voltage is outputted from the part of the plurality of secondary batteries that is a secondary battery in a relatively good state and supplied to the second load via the second output terminal, so that power from the secondary battery in a relatively good state is supplied to both the first load and the second load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A power supplying method for supplying power from a power supplying apparatus having a plurality of secondary batteries connected in series, the power supply method comprising:
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outputting a composite voltage of all of the plurality of secondary batteries; outputting an output of a part of the plurality of secondary batteries as a partial voltage; detecting states of the plurality of secondary batteries; and changing an order of series connection of the plurality of secondary batteries based on detected states of the plurality of secondary batteries in such a manner that the composite voltage of a part of the plurality of secondary batteries that is a secondary battery in a relatively good state as well as a part of the plurality of secondary batteries that is a secondary battery other than the secondary battery in a relatively good state is supplied to a first load via a first output terminal of the power supplying apparatus, and the partial voltage is outputted from a secondary battery in a relatively good state and supplied to a second load via a second output terminal of the power supply apparatus, so that power from the secondary battery in a relatively good state is supplied to both the first load and the second load, the first load and the second load being different from each other. - View Dependent Claims (12, 13)
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Specification