Non-contact power transfer apparatus
First Claim
1. A non-contact power transfer apparatus comprising:
- a main body of a power transmission unit having a power transmission coil;
a power reception unit having a power reception coil; and
a support base formed at a part of the main body for mounting the power reception unit detachably, the non-contact power transfer apparatus performing non-contact power transfer from the power transmission coil to the power reception coil using electromagnetic induction, whereinthe power transmission unit includes;
a resonant capacitor connected in series to the power transmission coil;
a power transmission circuit for supplying power to the power transmission coil via the resonant capacitor;
a current detection circuit for detecting a direct current of an input power source of the power transmission circuit;
unit detection means for detecting a mounting of the power reception unit on the support base; and
a first microcomputer having a control circuit for controlling the power transmission circuit, the current detection circuit and the unit detection means, andthe power reception unit includes;
a resonant capacitor connected in parallel with the power reception coil;
a rectification smoothing circuit for rectifying and smoothing power transferred to the power reception coil;
a series regulator for converting an output from the rectification smoothing circuit to a predetermined stabilized voltage;
a charge battery unit having a rechargeable battery;
a switching element connected in series to the charge battery unit for pulsing an output from the series regulator and pulse-charging the charge battery unit; and
a second microcomputer having a control circuit for controlling the series regulator and the switching element, andthe second microcomputer and on/off switching of the switching element are used to generate a plurality of pulse patterns.
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Accused Products
Abstract
A non-contact power transfer apparatus includes a power transmission unit including a power transmission coil, a power transmission circuit, a current detection circuit, and a unit detection means and a first microcomputer with a control circuit for controlling each of the circuits. The non-contact power transfer apparatus also includes a power reception unit having a power reception coil, a rectification smoothing circuit, a series regulator, a charge battery unit with a rechargeable battery, a switching element for pulse-charging and a second microcomputer with a control circuit for controlling the series regulator and the switching element. As such, the power reception unit receives power via the power reception coil, while the rectification smoothing circuit and series regulator generate a set voltage. The set voltage is used to start the second microcomputer to apply an initial reset and a pulse pattern as an ID authentication pattern to the switching element.
34 Citations
6 Claims
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1. A non-contact power transfer apparatus comprising:
- a main body of a power transmission unit having a power transmission coil;
a power reception unit having a power reception coil; and
a support base formed at a part of the main body for mounting the power reception unit detachably, the non-contact power transfer apparatus performing non-contact power transfer from the power transmission coil to the power reception coil using electromagnetic induction, whereinthe power transmission unit includes; a resonant capacitor connected in series to the power transmission coil; a power transmission circuit for supplying power to the power transmission coil via the resonant capacitor; a current detection circuit for detecting a direct current of an input power source of the power transmission circuit; unit detection means for detecting a mounting of the power reception unit on the support base; and a first microcomputer having a control circuit for controlling the power transmission circuit, the current detection circuit and the unit detection means, and the power reception unit includes; a resonant capacitor connected in parallel with the power reception coil; a rectification smoothing circuit for rectifying and smoothing power transferred to the power reception coil; a series regulator for converting an output from the rectification smoothing circuit to a predetermined stabilized voltage; a charge battery unit having a rechargeable battery; a switching element connected in series to the charge battery unit for pulsing an output from the series regulator and pulse-charging the charge battery unit; and a second microcomputer having a control circuit for controlling the series regulator and the switching element, and the second microcomputer and on/off switching of the switching element are used to generate a plurality of pulse patterns. - View Dependent Claims (2, 3, 4, 5, 6)
- a main body of a power transmission unit having a power transmission coil;
Specification