Inverter device
AssigneeI-Shou University
InventorsChien-Hsuan CHANG, Yi-Fan CHEN
Life of this patent
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Abstract
An inverter device includes a converter circuit and a filter. The converter circuit converts a DC input voltage into an AC intermediate voltage based on six control signals, and includes first and second converters. Each of the first and second converters includes three switches, two diodes and a coupled inductor circuit. The switches of the first converter operate respectively based on three of the control signals. The switches of the second converter operate respectively based on the other three of the control signals. The filter filters the AC intermediate voltage to generate an AC output voltage.
Claims8
An inverter device comprising:
- a converter circuit having an input terminal that is adapted to be connected to a positive terminal of a power source to receive a direct current (DC) input voltage, a first output terminal, a second output terminal, and a ground terminal that is adapted to be connected to a negative terminal of the power source, said converter circuit being to further receive a first control signal, a second control signal, a third control signal, a fourth control signal, a fifth control signal and a sixth control signal, and converting, based on the first to sixth control signals, the DC input voltage into an alternating current (AC) intermediate voltage that is provided between said first and second output terminals thereof, said converter circuit including a first converter and a second converter, each of said first and second converters including
- a first switch having a first terminal that is connected to said input terminal of said converter circuit, a second terminal, and a control terminal that is to receive a respective one of the first and second control signals,
- a first diode having a cathode that is connected to said second terminal of said first switch, and an anode that is connected to said ground terminal of said converter circuit,
- a coupled inductor circuit having a first terminal that is connected to said second terminal of said first switch, a second terminal, and a third terminal,
- a second diode having an anode that is connected to said third terminal of said coupled inductor circuit, and a cathode that is connected to one of said first and second output terminals of said converter circuit,
- a second switch having a first terminal that is connected to said second terminal of said coupled inductor circuit, a second terminal that is connected to said ground terminal of said converter circuit, and a control terminal that is to receive a respective one of the third and fourth control signals, and
- a third switch having a first terminal that is connected to said ground terminal of said converter circuit, a second terminal that is connected to the other one of said first and second output terminals of said converter circuit, and a control terminal that is to receive a respective one of the fifth and sixth control signals;
- and
- a filter connected to said first and second output terminals of said converter circuit to receive the AC intermediate voltage, and filtering the AC intermediate voltage to generate an AC output voltage;
- wherein the cathodes of said second diodes of said first and second converters are connected to different ones of said first and second output terminals of said converter circuit.
Dependencies are inferred from the claim text.