Series-parallel switching system, electric power supply device and electric power supply control device
A power supply device and power supply technology, which are applied in parallel conversion of batteries, output power conversion devices, electrical components, etc., can solve problems such as voltage imbalance, difficult connection, and pressure on batteries.
Inactive Publication Date: 2012-07-11
SONY CORP
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Problems solved by technology
The reason is that when the kinds of each battery are different from each other, the charging and discharging characteristics are different from each other, and even if the voltages are initially the same as each other, a voltage unbalance occurs after a period of time, and this causes any battery to be damaged by the other battery. Harsh effects such as charging and exerting stress on specific batteries only
[0004] In the case of series connection, the entire current load amount of the series connection is determined by the minimum value, and if the current load amount of each element is different from each other, it is difficult to perform efficient connection
Method used
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no. 5 approach
[0046] 7. Conclusion
[0047] 1. Series-parallel switching in prior art
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The invention discloses a series-parallel switching system, an electric power supply device and an electric power supply control device. The series-parallel switching system includes two or more electric power supply sources, two or more first switches, and two or more second switches, wherein pairs of two or more first switches and two or more second switches are each independently switched, the two or more electric power supply sources are connected to a bus line that includes at least a first bus line and a second bus line, and by switching over the first switches and the second switches using the switch switching portion, the first switches and the second switches are connected to the first bus line and the second bus line or are separated from the first bus line and the second bus line, and the connection of the electric power supply device is changed over to series and parallel.
Description
technical field [0001] The invention relates to a series-parallel switching system, a power supply device, a power supply control device and a series-parallel switching method. Background technique [0002] The series-parallel connection of power supply sources or loads is based on circuits. In terms of passive loads, series and parallel connections can be realized through corresponding electrical wiring without any difficulty in principle. On the other hand, in terms of power supply source, it is dangerous if the voltage or current load is not considered, and it is difficult to perform simple series-parallel connection. [0003] For example, when batteries are connected in parallel, it is necessary that the output voltages of the respective batteries connected in parallel be the same or that the battery types (manufacturer and lot) be the same. The reason is that when the kinds of each battery are different from each other, the charging and discharging characteristics are...
Claims
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CPCH02J7/0024
Inventor 田岛茂
Owner SONY CORP