Dc-dc converter with lc resonance circuit
AssigneeFujitsu Limited
InventorsYu Yonezawa, YOSHIYASU NAKASHIMA
Life of this patent
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Abstract
A DC-DC converter includes a capacitor configured to be charged for a predetermined period by an external voltage, an inductor configured to constitute an LC resonance circuit together with the capacitor, a closed-loop current path configured to release energy accumulated in the capacitor after the predetermined period to cause a current flowing in the LC resonance circuit to oscillate, a transformer configured to receive a current flowing in the closed-loop current path, and a rectifying circuit situated on an output side of the transformer.
Claims12
A DC-DC converter, comprising:
- a capacitor configured to be charged for a predetermined period by an external voltage;
- an inductor configured to constitute an LC resonance circuit together with the capacitor;
- a closed-loop current path configured to release energy accumulated in the capacitor after the predetermined period to cause a current flowing in the LC resonance circuit to oscillate;
- a transformer configured to receive a current flowing in the closed-loop current path;
- and
- a rectifying circuit situated on an output side of the transformer.
A DC-DC conversion method, comprising:
- charging a capacitor with an external voltage for a predetermined period;
- releasing energy accumulated in the capacitor after the predetermined period to cause a current to flow and oscillate in a closed-loop current path inclusive of an LC resonance circuit that includes the capacitor and an inductor;
- supplying the current flowing in the closed-loop current path to a transformer;
- and
- rectifying an output of the transformer.
An information apparatus, comprising:
- a DC-DC converter;
- a CPU;
- and
- a memory device,
- wherein the DC-DC converter includes:
- a capacitor configured to be charged for a predetermined period by an external voltage;
- an inductor configured to constitute an LC resonance circuit together with the capacitor;
- a closed-loop current path configured to release energy accumulated in the capacitor after the predetermined period to cause a current flowing in the LC resonance circuit to oscillate;
- a transformer configured to receive a current flowing in the closed-loop current path;
- and
- a rectifying circuit situated on an output side of the transformer.
Dependencies are inferred from the claim text.