Charger including a bias voltage applied to a rectifier to rectify received radio waves based on rectifier output voltage
First Claim
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1. A charger comprising:
- a rectifier to rectify a received radio wave to generate a charging current;
a potential generator to generate a bias voltage setting an operating point of the rectifier; and
a controller to supply the bias voltage generated by the potential generator when an output voltage of the rectifier is equal to or larger than a predetermined value.
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Abstract
A charger includes: a rectifier to rectify a received radio wave to generate a charging current; a potential generator to generate a bias voltage setting an operating point of the rectifier; and a controller to supply the bias voltage generated by the potential generator when an output voltage of the rectifier is equal to or larger than a predetermined value.
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Citations
9 Claims
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1. A charger comprising:
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a rectifier to rectify a received radio wave to generate a charging current; a potential generator to generate a bias voltage setting an operating point of the rectifier; and a controller to supply the bias voltage generated by the potential generator when an output voltage of the rectifier is equal to or larger than a predetermined value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A charger comprising:
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an antenna to receive a charging radio wave; a rectifier to rectify the charging radio wave to generate a charging current for charging a battery; a potential generator to generate a bias voltage for offsetting a threshold voltage above which the rectifier starts generating the charging current, and supplying the bias voltage to the rectifier upon receipt of a timing signal; a transfer controller to generate the timing signal upon receipt of activation control to supply the timing signal to the potential generator; and a switch controller to give the activation control to the transfer controller when an output voltage of the rectifier becomes equal to or larger than a predetermined value. - View Dependent Claims (9)
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Specification