Transformer sub-circuit
First Claim
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1. A transformer sub-circuit for charging an electrically operated vehicle, the transformer sub-circuit comprising:
- a stationary-side bridge circuit having a least two semiconductor switches being MOSFETs;
a stationary-side inductance connected to said bridge circuit and configured to be used as a primary side of a transformer; and
a controller for said semiconductor switches of said bridge circuit, said controller configured to operate said bridge circuit as an inverter and to carry out switching off of one of said semiconductor switches when a current flow through said one semiconductor switch reaches a definable threshold value differing from zero.
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Abstract
A transformer sub-circuit for use in an electrically operated vehicle includes a bridge circuit which has at least four MOSFETs and capacitors connected in parallel with the MOSFETs, and an inductor connected to the bridge circuit for use as a primary side of a transformer. A control device or controller for the inverter is configured to cause switching of the MOSFETs in such a way that operation is performed at a frequency that is higher than the resonance frequency.
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Citations
7 Claims
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1. A transformer sub-circuit for charging an electrically operated vehicle, the transformer sub-circuit comprising:
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a stationary-side bridge circuit having a least two semiconductor switches being MOSFETs; a stationary-side inductance connected to said bridge circuit and configured to be used as a primary side of a transformer; and a controller for said semiconductor switches of said bridge circuit, said controller configured to operate said bridge circuit as an inverter and to carry out switching off of one of said semiconductor switches when a current flow through said one semiconductor switch reaches a definable threshold value differing from zero. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification