Power conversion and vehicle
First Claim
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1. A power conversion system for converting a dc voltage to a pulsed ac voltage, comprising:
- a dc voltage source including a plurality of source terminals providing three or more electric potentials;
a switching circuit arranged to connect one of the source terminals of the dc voltage source selectively to an output terminal of the switching circuit; and
a controller configured to produce a pulsed ac output voltage at the output terminal from the potentials of the dc voltage source by controlling an on time for connecting each of the potentials of the dc voltage source to the output terminal.
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Abstract
A power conversion system for converting a dc voltage to a pulsed ac voltage includes a dc voltage source providing three or more electric potentials, and a switching circuit arranged to connect one of the potentials selectively to an output terminal. A controller produces a pulsed ac output voltage at the output terminal from the potentials of the dc voltage source by controlling an on time for connecting each of the potentials to the output terminal.
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Citations
26 Claims
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1. A power conversion system for converting a dc voltage to a pulsed ac voltage, comprising:
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a dc voltage source including a plurality of source terminals providing three or more electric potentials;
a switching circuit arranged to connect one of the source terminals of the dc voltage source selectively to an output terminal of the switching circuit; and
a controller configured to produce a pulsed ac output voltage at the output terminal from the potentials of the dc voltage source by controlling an on time for connecting each of the potentials of the dc voltage source to the output terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A power conversion process of driving an inductive load with a dc voltage source, the power conversion process comprising:
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allowing a current flow between the dc voltage source and the inductive load through a selected current path; and
determining the selected current path by selecting one of first and second supply potentials of the dc voltage source including a plurality of voltage supplying devices connected together to provide three or more potentials. - View Dependent Claims (24, 25)
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26. A power conversion system for converting a dc voltage to a pulsed ac voltage, comprising:
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voltage supplying means for providing three or more electric potentials; and
switching means for selecting one of the potentials, and for producing a pulsed ac output voltage from the potentials by controlling an on time for connecting each of the potentials for output.
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Specification