Cell Control Device and Electricity Storage Device Incorporating the Same
First Claim
1. A cell control device, comprising:
- a discharge circuit, comprising first switches that select each of a plurality of unit cells that are connected in series, and that discharges the each unit cell selected by the first switches;
a charging circuit, comprising second switches that select each of the plurality of unit cells that are connected in series, and that charges the each unit cell selected by the second switches;
a voltage detection unit that detects a voltage of each unit cell via voltage detection lines respectively connected to positive electrodes and to negative electrodes of the plurality of unit cells;
an oscillator that irradiates high frequency electromagnetic radiation upon the voltage detection lines; and
a discharge control unit that controls opening and closing of the first switches, thereby performing discharge of the each unit cell, and a charging control unit that controls opening and closing of the second switches, thereby performing charging of the each unit cell, based on voltages of the plurality of the unit cells that are detected by the voltage detection unit.
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Accused Products
Abstract
A cell control device according to the present invention includes: a discharge circuit that discharges each unit cell selected by the first switches among a plurality of unit cells connected in series; a charging circuit that charges each unit cell selected by the second switches among the unit cells connected in series, and; a voltage detection unit that detects a voltage of each unit cell via voltage detection lines respectively connected to positive and negative electrodes of the unit cells; an oscillator that irradiates high frequency electromagnetic radiation upon the voltage detection lines; and a charging control unit that controls switching of the first switches, thereby performing discharge of the each unit cell, and a charging control unit that controls switching of the second switches, thereby performing charging of the unit cells, based on voltages of the unit cells that are detected by the voltage detection unit.
31 Citations
11 Claims
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1. A cell control device, comprising:
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a discharge circuit, comprising first switches that select each of a plurality of unit cells that are connected in series, and that discharges the each unit cell selected by the first switches; a charging circuit, comprising second switches that select each of the plurality of unit cells that are connected in series, and that charges the each unit cell selected by the second switches; a voltage detection unit that detects a voltage of each unit cell via voltage detection lines respectively connected to positive electrodes and to negative electrodes of the plurality of unit cells; an oscillator that irradiates high frequency electromagnetic radiation upon the voltage detection lines; and a discharge control unit that controls opening and closing of the first switches, thereby performing discharge of the each unit cell, and a charging control unit that controls opening and closing of the second switches, thereby performing charging of the each unit cell, based on voltages of the plurality of the unit cells that are detected by the voltage detection unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification