Wireless power transfer system
First Claim
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1. A wireless power transfer system-charger for wireless power transmission, the wireless power transfer system-charger comprising:
- a power converting unit to convert DC signals on a first node and a fifth node into AC signals and output the AC signals to a sixth node and a seventh node;
a control unit to control the power converting unit; and
a transmission antenna system connected between the sixth nod and the seventh node,wherein the power converting unit comprises;
a first high-frequency filtering unit connected between the first node and a second node;
a second high-frequency filtering unit connected between the first node and a third node;
a first power converting switch unit including a first switch connected between the second node and the sixth node, and a second switch connected between the sixth node and the fifth node; and
a second power converting switch unit including a third switch connected between the third node and the seventh node, and a fourth switch connected between the seventh node and the fifth node,wherein the first high-frequency filtering unit includes a fifth inductor and the second high-frequency filtering unit includes a sixth inductor.
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Abstract
Disclosed is a wireless power transfer system-charger for wireless power transmission. The wireless power transfer system-charger includes: a power converting unit to convert a DC signal into an AC signal; a control unit to control the power converting unit with a first or second operating frequency; and an induction-type antenna system and a resonance-type antenna system connected in parallel to each other, wherein power is transmitted through the induction-type antenna system or the resonance-type antenna system according to a control of the control unit.
19 Citations
14 Claims
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1. A wireless power transfer system-charger for wireless power transmission, the wireless power transfer system-charger comprising:
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a power converting unit to convert DC signals on a first node and a fifth node into AC signals and output the AC signals to a sixth node and a seventh node; a control unit to control the power converting unit; and a transmission antenna system connected between the sixth nod and the seventh node, wherein the power converting unit comprises; a first high-frequency filtering unit connected between the first node and a second node; a second high-frequency filtering unit connected between the first node and a third node; a first power converting switch unit including a first switch connected between the second node and the sixth node, and a second switch connected between the sixth node and the fifth node; and a second power converting switch unit including a third switch connected between the third node and the seventh node, and a fourth switch connected between the seventh node and the fifth node, wherein the first high-frequency filtering unit includes a fifth inductor and the second high-frequency filtering unit includes a sixth inductor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification