Rectification and regulation circuit for a wireless power receiver
First Claim
1. A rectification and regulation circuit for a wireless power receiver, the rectification and regulation circuit comprising:
- a coil for magnetically coupling to a primary coil of a power transmitter;
a full-wave rectifier separate from the power transmitter and having a first pair of controllable rectifiers comprising a first transistor connected to a first terminal of the coil and a second transistor connected to a second terminal of the coil; and
a control unit separate from the power transmitter and operable to control switching of the transistors of the full-wave rectifier so that the full-wave rectifier (a) generates a rectified output for charging a battery of the wireless power receiver by rectifying current through the coil or voltage across the coil and (b) regulates the rectified output.
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Accused Products
Abstract
A rectification and regulation circuit for a wireless power receiver includes a coil for magnetically coupling to a primary coil of a power transmitter, a full-wave rectifier circuit separate from the power transmitter and a control unit separate from the power transmitter. The full-wave rectifier has a first pair of controllable rectifiers including a first transistor connected to a first terminal of the coil and a second transistor connected to a second terminal of the coil. The control unit is operable to control switching of the transistors of the full-wave rectifier so that the full-wave rectifier (a) generates a rectified output for charging a battery of the wireless power receiver by rectifying current through the coil or voltage across the coil, and (b) regulates the rectified output.
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Citations
11 Claims
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1. A rectification and regulation circuit for a wireless power receiver, the rectification and regulation circuit comprising:
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a coil for magnetically coupling to a primary coil of a power transmitter; a full-wave rectifier separate from the power transmitter and having a first pair of controllable rectifiers comprising a first transistor connected to a first terminal of the coil and a second transistor connected to a second terminal of the coil; and a control unit separate from the power transmitter and operable to control switching of the transistors of the full-wave rectifier so that the full-wave rectifier (a) generates a rectified output for charging a battery of the wireless power receiver by rectifying current through the coil or voltage across the coil and (b) regulates the rectified output. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification