CONTACTLESS CHARGING DEVICE AND CONTACTLESS CHARGING METHOD
First Claim
1. A contactless charging device, comprising:
- an energy-storing device for providing a direct current (DC) signal as an input power;
a power module, electrically connected to the energy-storing device for generating an output signal in response to the DC signal and a control signal, wherein the power module further comprises a transformer primary winding for coupling the output signal to a transformer secondary winding located external to the contactless charging device; and
a feedback controller, electrically connected to the power module for generating the control signal in response to the output signal, a predetermined power and a predetermined phase;
wherein when the contactless charging device is in close proximity to a plurality of loads, the output signal at the transformer primary winding of the contactless charging device will be coupled to the transformer secondary winding of the plurality of loads so as to simultaneously charging the loads.
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Accused Products
Abstract
A contactless charging device and contactless charging method is provided. The contactless charging device includes an energy-storing device for providing a DC signal as an input power, a power module electrically connected to the energy-storing device for generating an output signal in response to the DC signal and a control signal. The power module includes a transformer primary winding for coupling the output signal to a transformer secondary winding located external to the contactless charging device. The charging device further includes a feedback controller electrically connected to the power module for generating the control signal in response to the output signal, a predetermined power and a predetermined phase. When the contactless charging device is in close proximity to a plurality of loads, the output signal at the transformer primary winding will be coupled to the transformer secondary windings of the plurality of loads so as to simultaneously charge the loads.
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Citations
11 Claims
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1. A contactless charging device, comprising:
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an energy-storing device for providing a direct current (DC) signal as an input power; a power module, electrically connected to the energy-storing device for generating an output signal in response to the DC signal and a control signal, wherein the power module further comprises a transformer primary winding for coupling the output signal to a transformer secondary winding located external to the contactless charging device; and a feedback controller, electrically connected to the power module for generating the control signal in response to the output signal, a predetermined power and a predetermined phase; wherein when the contactless charging device is in close proximity to a plurality of loads, the output signal at the transformer primary winding of the contactless charging device will be coupled to the transformer secondary winding of the plurality of loads so as to simultaneously charging the loads. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A contactless charging method, comprising:
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generating an output signal; determining whether a contactless charging device is in close proximity to any chargeable load according to the output signal to determine whether to perform charging; performing phase lock control according to the output signal and a predetermined phase; performing power control according to the output signal and a predetermined power; and coupling the output signal to transformers secondary windings of a plurality of loads through the transformer primary winding of the contactless charging device to simultaneously charge the plurality of loads. - View Dependent Claims (9, 10, 11)
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Specification