Power converter
First Claim
1. A power converter which converts power output from a power supply source to a prescribed power and outputs the converted power to a power supply destination, the power converter comprising:
- a module section; and
a drive section for operating the module section;
the module section comprises a plurality of semiconductor modules;
the plurality of semiconductor modules have semiconductor elements for power conversion;
corresponding semiconductor elements are electrically connected in parallel to form a parallel circuit;
the parallel circuit is electrically connected between the power supply source and the power supply destination;
the drive section comprises a drive circuit, a first signal wire and a second signal wire;
the drive circuit is provided so as to correspond to a first semiconductor element which is one of the semiconductor elements constituting the parallel circuit;
whereinthe drive circuit outputs drive signals for operating the first semiconductor element;
so that the first semiconductor element operates by receiving the drive signals output from the drive circuit;
the first signal wire connects to the drive circuit and transmits the drive signals to the first semiconductor element from the drive circuit;
the second signal wire branches from the first signal wire and transmits the drive signals branched from the first signal wire to a second semiconductor element which is another, different semiconductor element constituting the parallel circuit; and
the second semiconductor element receives the branched drive signals and operates in the same manner as the first semiconductor element.
1 Assignment
0 Petitions
Accused Products
Abstract
The power converter for solving the above-described problem has a module section and a drive section for operating the module section. The drive section has a drive circuit. The drive circuit is provided so as to correspond to the first semiconductor element which is one of the semiconductor elements comprising the parallel circuit; wherein drive signals for operating the first semiconductor element are output. The drive signals that are output from the drive circuit are electrically branched and output to a second semiconductor element which is a separate semiconductor element from the first semiconductor element of the semiconductor elements comprising the parallel circuit. As a result, the second semiconductor element receives the branched drive signals and operates in the same manner as the first semiconductor element.
Thereby, a motor converter favorable for control large current at a low cost is provided.
36 Citations
13 Claims
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1. A power converter which converts power output from a power supply source to a prescribed power and outputs the converted power to a power supply destination, the power converter comprising:
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a module section; and a drive section for operating the module section; the module section comprises a plurality of semiconductor modules; the plurality of semiconductor modules have semiconductor elements for power conversion; corresponding semiconductor elements are electrically connected in parallel to form a parallel circuit; the parallel circuit is electrically connected between the power supply source and the power supply destination; the drive section comprises a drive circuit, a first signal wire and a second signal wire; the drive circuit is provided so as to correspond to a first semiconductor element which is one of the semiconductor elements constituting the parallel circuit;
whereinthe drive circuit outputs drive signals for operating the first semiconductor element; so that the first semiconductor element operates by receiving the drive signals output from the drive circuit; the first signal wire connects to the drive circuit and transmits the drive signals to the first semiconductor element from the drive circuit; the second signal wire branches from the first signal wire and transmits the drive signals branched from the first signal wire to a second semiconductor element which is another, different semiconductor element constituting the parallel circuit; and the second semiconductor element receives the branched drive signals and operates in the same manner as the first semiconductor element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A power converter which converts direct current output from a power supply source to alternating current and outputs the converted alternating current power to a power supply destination, the power converter comprising:
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a module section; and a drive section for operating the module section; the module section comprises a plurality of semiconductor modules; the plurality of semiconductor modules have a plurality of serial circuits, each serial circuit formed by electrically connecting a plurality of semiconductor elements for power conversion serially; parallel circuits of corresponding phases, each parallel circuit comprising a plurality of the serial circuits that are electrically connected to each other in parallel; the parallel circuits are electrically connected between the corresponding power supply source and the corresponding power supply destination; the drive section comprises a drive circuit, a first signal wire and a second signal wire; and the drive circuit is provided so as to correspond to a first serial circuit which is one of the serial circuits constituting the parallel circuits; wherein the drive circuit outputs drive signals for operating the semiconductor element constituting the first serial circuit; the semiconductor elements constituting the first serial circuit operate by receiving drive signals output from the drive circuit; the first signal wire connects to the drive circuit and transmits the drive signals to a corresponding semiconductor element constituting the first serial circuit from the drive circuit; the second signal wire branches from the first signal wire, and transmits the drive signals branched from the first signal wire to a corresponding semiconductor element constituting the second serial circuit which is another different serial circuit constituting the parallel circuits; and the semiconductor element constituting the second serial circuit receives the branched drive signals and operates in the same manner as the semiconductor element constituting the first serial circuit. - View Dependent Claims (11, 12, 13)
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Specification