AC-DC bi-directionally conversion device with failure determination function, failure determination method and computer readable medium
First Claim
1. A conversion device comprising:
- an AC-DC conversion circuit;
a DC-DC conversion circuit for converting DC voltage output from the AC-DC conversion circuit;
a detection unit for detecting any of AC voltage applied to the AC-DC conversion circuit, AC current applied to the AC-DC conversion circuit, DC voltage applied to the DC-DC conversion circuit and DC current output from the DC-DC conversion circuit;
an obtaining part for obtaining information indicating whether or not AC voltage is applied to AC-DC conversion circuit; and
a power supply fault determination part for determining whether or not a power supply fault or an open fault is present in the detection unit itself if the information obtained by the obtaining part indicates that AC voltage is not applied to the AC-DC conversion circuit.
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Accused Products
Abstract
Provided is a conversion device which can determine the presence/absence of a failure in a detection unit for detecting AC or DC voltage or current. A conversion device, including an AC-DC conversion circuit, a DC-DC conversion circuit for converting DC voltage output from the AC-DC conversion circuit and a detection unit for detecting AC or DC voltage or current, comprises an obtaining part for obtaining information indicating whether or not AC voltage is applied to the AC-DC conversion circuit, and a power supply fault determination part for determination presence/absence of a power supply fault or an open fault in the detection unit if the obtained information indicates that AC voltage is not applied to the AC-DC conversion circuit.
12 Citations
10 Claims
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1. A conversion device comprising:
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an AC-DC conversion circuit; a DC-DC conversion circuit for converting DC voltage output from the AC-DC conversion circuit; a detection unit for detecting any of AC voltage applied to the AC-DC conversion circuit, AC current applied to the AC-DC conversion circuit, DC voltage applied to the DC-DC conversion circuit and DC current output from the DC-DC conversion circuit; an obtaining part for obtaining information indicating whether or not AC voltage is applied to AC-DC conversion circuit; and a power supply fault determination part for determining whether or not a power supply fault or an open fault is present in the detection unit itself if the information obtained by the obtaining part indicates that AC voltage is not applied to the AC-DC conversion circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A failure determination method of determining, in a conversion device including:
- an AC-DC conversion circuit;
a DC-DC conversion circuit for converting DC voltage output from the AC-DC conversion circuit; and
a detection unit for detecting any of AC voltage, AC current, DC voltage or DC current, presence or absence of a failure in the detection unit, the method comprising;obtaining information indicating whether or not AC voltage is applied to the AC-DC conversion circuit; and determining whether or not a power supply fault or an open fault is present in the detection unit itself if the obtained information indicates that AC voltage is not applied to the AC-DC conversion circuit.
- an AC-DC conversion circuit;
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10. A non-transitory computer readable medium storing a computer program, in a conversion device including:
- an AC-DC conversion circuit;
a DC-DC conversion circuit for converting DC voltage output from the AC-DC conversion circuit;
a detection unit for detecting any of AC voltage, AC current, DC voltage and DC current; and
a control circuit having a processor for controlling switching of the AC-DC conversion circuit and the DC-DC conversion circuit;
causing the processor of the control circuit to determine presence or absence of a failure in the detection unit, further causing the processor to;determine whether or not information obtained from an outside indicates that AC voltage is not applied to the AC-DC conversion circuit; and determine whether or not a power supply fault or an open fault is present in the detection unit itself if the obtained information indicates that AC voltage is not applied to the AC-DC conversion circuit.
- an AC-DC conversion circuit;
Specification