Cell balance circuit and cell balance device

Cell balance circuit and cell balance device

To provide a cell balance circuit and a cell balance apparatus with a low cost and with a compact size, and configured to equalize the charge voltages of rechargeable batteries when the rechargeable batteries are charged or discharged, while suppressing deterioration of the rechargeable batteries. A...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: JO HIROSHI, SASHIDA KAZUYUKI
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:To provide a cell balance circuit and a cell balance apparatus with a low cost and with a compact size, and configured to equalize the charge voltages of rechargeable batteries when the rechargeable batteries are charged or discharged, while suppressing deterioration of the rechargeable batteries. A cell balance circuit AA includes a transformer T, a switch SW1 arranged so as to form a set with a rechargeable battery BT1, and a switch SW2 arranged so as to form a set with a rechargeable battery BT2. The transformer T includes a primary winding Wa arranged so as to form a set with the rechargeable battery BT1, and a secondary winding Wb arranged so as to form a set with the rechargeable battery BT2. When the rechargeable batteries BT1 and BT2 are charged or discharged, the cell balance circuit AA synchronously controls the switches SW1 and SW2.