Cell voltage detection device and cell system using the same
First Claim
1. A cell voltage detection device comprising:
- a voltage detection element for detecting voltages of cells within a cell block formed with a plurality of cells serially connected to each other; and
another voltage detection element for detecting a voltage of an operating power source of the voltage detection element,wherein the operating power source of said voltage detection element is supplied from a voltage of the inside or both ends of said cell block,wherein an operating power source of said another voltage detection element is supplied from a power source outside of said cell block,the operating power source of said another voltage detection element being less variable than the operating power source of said voltage detection element.
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Accused Products
Abstract
A fuel cell detection device according to the present invention includes: a cell block formed with a plurality of cells serially connected to each other; a voltage detection element for detecting voltages of the cells within the cell block; and another voltage detection element for detecting a voltage of the operating power source of the voltage detection element, where the operating power source of the voltage detection element is supplied from a voltage of the inside or both ends of the cell block, and the operating power source of another voltage detection element is supplied from a voltage of the outside of the cell block, the operating power source of another voltage detection element being less variable than the operating power source of the voltage detection element.
14 Citations
13 Claims
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1. A cell voltage detection device comprising:
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a voltage detection element for detecting voltages of cells within a cell block formed with a plurality of cells serially connected to each other; and another voltage detection element for detecting a voltage of an operating power source of the voltage detection element, wherein the operating power source of said voltage detection element is supplied from a voltage of the inside or both ends of said cell block, wherein an operating power source of said another voltage detection element is supplied from a power source outside of said cell block, the operating power source of said another voltage detection element being less variable than the operating power source of said voltage detection element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A fuel voltage detection device comprising a plurality of cell submodules and a processor element, wherein:
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each cell submodule includes a cell block formed with a plurality of cells serially connected to each other and insulation type communication means comprised of at least one of an optical coupler and a magnetic coupler, wherein the insulation type communication means is located between the cell submodules and the processor element; minimum potentials of different ones of said cell blocks within said plurality of cell submodules are different from each other; and measurement of potentials at both ends of said cell blocks, electrical communication between the cell blocks of the cell submodules and the processor element through said insulation type communication means, and driving of said processor element are carried out by the use of a common constant voltage source coupled to the cell blocks, the insulation type communication means and the processor element. - View Dependent Claims (11)
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12. A fuel voltage detection device comprising:
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a voltage detection element for detecting voltages of fuel cells within a fuel cell block formed with a plurality of fuel cells serially connected to each other; and another voltage detection element for detecting a voltage of the operating power source of the voltage detection element, wherein the operating power source of said voltage detection element is supplied from a voltage of the inside or both ends of said fuel cell block, the operating power source of said another voltage detection element is supplied from a voltage source outside of said fuel cell block, and the operating power source of said another voltage detection element being less variable than the operating power source of said voltage detection element. - View Dependent Claims (13)
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Specification