Charging of secondary cells using transmitted microwave energy
First Claim
1. A method of charging/recharging a secondary cell comprising:
- placing the secondary cell in a microwave oven;
generating radiated microwave energy in the microwave oven;
protecting at least the secondary cell from harmful effects of the radiated microwave energy;
receiving and rectifying the radiated microwave energy to form a dc current; and
supplying the dc current to the secondary cell.
1 Assignment
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Accused Products
Abstract
A method of charging/recharging a secondary cell (24) by rectifying transmitted microwave energy which may be supplied by an unmodified microwave oven (18) into which oit is placed. The secondary cell (24) or an article, suchas a portable transceiver (10), containing a secondary cell is protected from harmful effects of microwave energy using a Faraday cage (12) and an antenna (16) disposed outside the Faraday cage picks up the energy which is rectified using s Schottky barrier diode (26). Optionally, the secondary cell may be disposed outside the oven (18) and the rectified current is supplied from the interior of the oven by way of conductors and/or a suitable connector.
20 Citations
14 Claims
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1. A method of charging/recharging a secondary cell comprising:
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placing the secondary cell in a microwave oven; generating radiated microwave energy in the microwave oven; protecting at least the secondary cell from harmful effects of the radiated microwave energy; receiving and rectifying the radiated microwave energy to form a dc current; and supplying the dc current to the secondary cell. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus for charging/recharging a secondary cell comprising:
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a source of radiated microwave energy; receiving means for receiving the radiated microwave energy; rectifying means coupled to the receiving means for rectifying the received microwave energy to form a dc current; and a coupling for supplying the dc current from the rectifying means to the secondary cell, wherein the receiving means comprises an antenna coupled to a transceiver and further comprising a diplexer coupled to the antenna, the diplexer having first and second ports, a band stop filter coupling the first port to the transceiver for blocking the received microwave energy and a band pass filter for passing the received microwave energy to the rectifying means. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method of charging/recharging a secondary cell comprising:
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generating radiated microwave energy; receiving and rectifying the radiated microwave energy to form a dc current; and supplying the dc current to the secondary cell; wherein the generated microwave radiation and said receiving and rectifying are inside a microwave oven, said secondary cell is outside the microwave oven, and said supplying is by conducting the dc current out of the microwave oven and to the secondary cell. - View Dependent Claims (14)
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Specification