Bidirectional DC-DC resonant converter
First Claim
1. Bi-directional DC-DC resonant converter with bi-directional voltage control, comprising:
- primary converter terminals defining a primary voltage;
secondary converter terminals defining a secondary voltage;
a transformer device having primary transformer terminals and secondary transformer terminals;
a resonant tank device having first and second primary resonant tank terminals defining a primary resonant tank voltage and first and second secondary resonant tank terminals defining a secondary resonant tank voltage, wherein the primary tank terminals are connected to the secondary transformer terminals;
a primary switching circuit connected between the primary converter terminals and the primary transformer terminals; and
a secondary switching circuit connected between the secondary resonant tank terminals and the secondary converter terminals;
wherein the resonant tank device comprises a configuration switch for configuration of the converter between a first state, in which power is transferred from the secondary converter terminals to the primary converter terminals, and a second state, in which power is transferred from the primary converter terminals to the secondary converter terminals;
wherein the resonant tank device comprises a resonant inductor, a magnetizing inductor and a resonant capacitor connected to the configuration switch;
wherein a first gain is defined as the ratio between a first harmonic approximation of the secondary resonant tank voltage and a first harmonic approximation of the primary resonant tank voltage when operating at a first series resonance frequency in the first state;
wherein a second gain is defined as the ratio between a first harmonic approximation of the secondary resonant tank voltage and a first harmonic approximation of the primary resonant tank voltage when operating at a second series resonance frequency in the second state; and
wherein the first gain is different from the second gain.
1 Assignment
0 Petitions
Accused Products
Abstract
A bi-directional DC-DC resonant converter with bi-directional voltage control includes: primary converter terminals defining a primary voltage; secondary converter terminals defining a secondary voltage; a transformer device having primary transformer terminals and secondary transformer terminals; a resonant tank device having first and second primary resonant tank terminals defining a primary resonant tank voltage and first and second secondary resonant tank terminals defining a secondary resonant tank voltage, wherein the primary tank terminals are connected to the secondary transformer terminals; a primary switching circuit connected between the primary converter terminals and the primary transformer terminals; and a secondary switching circuit connected between the secondary resonant tank terminals and the secondary converter terminals.
10 Citations
17 Claims
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1. Bi-directional DC-DC resonant converter with bi-directional voltage control, comprising:
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primary converter terminals defining a primary voltage; secondary converter terminals defining a secondary voltage; a transformer device having primary transformer terminals and secondary transformer terminals; a resonant tank device having first and second primary resonant tank terminals defining a primary resonant tank voltage and first and second secondary resonant tank terminals defining a secondary resonant tank voltage, wherein the primary tank terminals are connected to the secondary transformer terminals; a primary switching circuit connected between the primary converter terminals and the primary transformer terminals; and a secondary switching circuit connected between the secondary resonant tank terminals and the secondary converter terminals; wherein the resonant tank device comprises a configuration switch for configuration of the converter between a first state, in which power is transferred from the secondary converter terminals to the primary converter terminals, and a second state, in which power is transferred from the primary converter terminals to the secondary converter terminals; wherein the resonant tank device comprises a resonant inductor, a magnetizing inductor and a resonant capacitor connected to the configuration switch; wherein a first gain is defined as the ratio between a first harmonic approximation of the secondary resonant tank voltage and a first harmonic approximation of the primary resonant tank voltage when operating at a first series resonance frequency in the first state; wherein a second gain is defined as the ratio between a first harmonic approximation of the secondary resonant tank voltage and a first harmonic approximation of the primary resonant tank voltage when operating at a second series resonance frequency in the second state; and wherein the first gain is different from the second gain. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification