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US 12,580,421 B2Granted
Rectifier, inverter, and wireless charging device
AssigneeHuawei Technologies Co., Ltd.
InventorsZhangrong Hu, Wei Wei
Life of this patent
Estimating the term…
Abstract
This application provides a rectifier, an inverter, and a wireless charging device. The rectifier includes a signal conversion unit and a switchable capacitor unit that are mutually coupled. The switchable capacitor unit is configured to switch a rectification mode of the rectifier. The rectification mode may include but is not limited to any one of the following: a voltage multiplier rectification mode or a full-bridge rectification mode. Therefore, a variable dynamic range of an output voltage of the rectifier provided in embodiments of this application is large.
Claims20
A rectifier, comprising:
- a signal converter including a first port, a second port, a third port, a fourth port, a first unidirectional conduction semiconductor transistor, a second unidirectional conduction semiconductor transistor, a third unidirectional conduction semiconductor transistor, and a fourth unidirectional conduction semiconductor transistor, wherein
- an output port of the first unidirectional conduction semiconductor transistor and an input port of the second unidirectional conduction semiconductor transistor are coupled to the first port, an output port of the second unidirectional conduction semiconductor transistor and an output port of the third unidirectional conduction semiconductor transistor are coupled to the second port, an output port of the fourth unidirectional conduction semiconductor transistor and an input port of the third unidirectional conduction semiconductor transistor are coupled to the third port, an input port of the first unidirectional conduction semiconductor transistor and an input port of the fourth unidirectional conduction semiconductor transistor are coupled to the fourth port, the first port and the third port are configured to be coupled to a resonant circuit, and the fourth port is configured to be coupled to a constant voltage;
- wherein
- the first port and the third port are input ports of the rectifier, and the second port and the fourth port are output ports of the rectifier;
- a first switch is coupled between the third port and an internal node, and a first capacitor and a second capacitor are coupled to the second port, the fourth port, and the internal node;
- wherein the first capacitor is coupled between the internal node and the second port, and the second capacitor is coupled between the internal node and the fourth port;
- and
- a third capacitor is coupled between the second port and the fourth port.
5 more elements
An inverter, comprising:
- a signal converter including
- a first port, a second port, a third port, a fourth port, a first unidirectional conduction semiconductor transistor, a second unidirectional conduction semiconductor transistor, a third unidirectional conduction semiconductor transistor, and a fourth unidirectional conduction semiconductor transistor, wherein
- an input port of the first unidirectional conduction semiconductor transistor and an output port of the second unidirectional conduction semiconductor transistor are coupled to the first port, an input port of the second unidirectional conduction semiconductor transistor and an input port of the third unidirectional conduction semiconductor transistor are coupled to the second port, an input port of the fourth unidirectional conduction semiconductor transistor and an output port of the third unidirectional conduction semiconductor transistor are coupled to the third port, an output port of the first unidirectional conduction semiconductor transistor and an output port of the fourth unidirectional conduction semiconductor transistor are coupled to the fourth port, the first port and the third port are configured to be coupled to a resonant circuit, and the fourth port is configured to be coupled to a constant voltage;
- wherein
- the first port and the third port are output ports of the inverter, and the second port and the fourth port are input ports of the inverter;
- a first switch is coupled between the third port and an internal node, and a first capacitor and a second capacitor are coupled to the second port, the fourth port, and the internal node;
- wherein the first capacitor is coupled between the internal node and the second port, and the second capacitor is coupled between the internal node and the fourth port;
- and
- a third capacitor is coupled between the second port and the fourth port.
6 more elements
A wireless charging device, wherein the device is configured to receive a wireless charging signal, and the device comprises a rectifier and a resonant circuit;
- wherein the rectifier comprises:
- a signal converter including a first port, a second port, a third port, a fourth port, a first unidirectional conduction semiconductor transistor, a second unidirectional conduction semiconductor transistor, a third unidirectional conduction semiconductor transistor, and a fourth unidirectional conduction semiconductor transistor, wherein an output port of the first unidirectional conduction semiconductor transistor and an input port of the second unidirectional conduction semiconductor transistor are coupled to the first port, an output port of the second unidirectional conduction semiconductor transistor and an output port of the third unidirectional conduction semiconductor transistor are coupled to the second port, an output port of the fourth unidirectional conduction semiconductor transistor and an input port of the third unidirectional conduction semiconductor transistor are coupled to the third port, an input port of the first unidirectional conduction semiconductor transistor and an input port of the fourth unidirectional conduction semiconductor transistor are coupled to the fourth port, the first port and the third port are configured to be coupled to a resonant circuit, and the fourth port is configured to be coupled to a constant voltage;
- wherein the first port and the third port are input ports of the rectifier, and the second port and the fourth port are output ports of the rectifier;
- a first switch coupled between the third port and an internal node, and a first capacitor and a second capacitor coupled to the second port, the fourth port, and the internal node;
- wherein the first capacitor is coupled between the internal node and the second port, and the second capacitor is coupled between the internal node and the fourth port;
- and a third capacitor coupled between the second port and the fourth port.
3 more elements
Dependencies are inferred from the claim text.