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On-chip full-synchronous bridge rectifier structure of wireless power transmission chip and circuit

A technology of wireless power transmission and bridge rectifier, which is applied in circuit devices, conversion of AC power input to DC power output, electrical components, etc., can solve the problems of large power loss of diode 103, increased application cost, and occupation of PCB area.

Inactive Publication Date: 2014-08-06
余丽丽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] 1. Diode 100, diode 101, diode 102, and diode 103 have relatively large power losses, and the solution efficiency is low
[0011] 2. Diode 100, diode 101, diode 102, and diode 103 are generally outside the chip, occupying PCB area and increasing application costs

Method used

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  • On-chip full-synchronous bridge rectifier structure of wireless power transmission chip and circuit
  • On-chip full-synchronous bridge rectifier structure of wireless power transmission chip and circuit
  • On-chip full-synchronous bridge rectifier structure of wireless power transmission chip and circuit

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Embodiment Construction

[0020] In order to make those skilled in the art understand the technical solution of the present invention more clearly, the specific implementation manner thereof will be described below in conjunction with the accompanying drawings.

[0021] Such as figure 2 The shown inventive solution is composed of a power module 201 , a detection module 202 , a logic module 203 and a drive module 204 .

[0022] The power module 201 is composed of N-type MOS tube 231, N-type MOS tube 232, N-type MOS tube 233, N-type MOS tube 234, N-type MOS tube 231, N-type MOS tube 232, N-type MOS tube 233, and N-type MOS tube 233. The MOS transistor 234 has a parasitic diode 235 , a parasitic diode 236 , a parasitic diode 237 and a parasitic diode 238 respectively.

[0023] The detection module 202 is composed of a comparator 240, a comparator 241, a comparator 242, and a comparator 243, which are respectively used to compare the voltage level of the node 110 and the node 112, compare the voltage lev...

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Abstract

The invention discloses an on-chip full-synchronous bridge rectifier structure of a wireless power transmission chip and a circuit. The on-chip full-synchronous bridge rectifier structure comprises a power module, a detection module, a logic module and a drive module. The on-chip full-synchronous bridge rectifier structure is suitable for not only wireless power transmission but also traditional portable products and novel portable products. The on-chip full-synchronous bridge rectifier structure has the advantages that the integration level is high, cost is low, the size of a scheme is reduced, and efficiency is improved.

Description

technical field [0001] The invention relates to a bridge rectifier, in particular to a wireless power transmission, in particular to a fully synchronous bridge rectifier in a chip. Background technique [0002] With the rapid development of modernization and technology, various electronic devices are widely used in people's life and production. With the increasing power consumption of portable products and the diversity of charging methods for portable products, the traditional charging technology is increasingly unable to meet people's requirements for portable and charging at any time. The emergence of wireless charging solves this problem. With the maturity of wireless charging protocols and related technologies, they have been gradually and widely applied to smaller portable products. Efficient and highly integrated wireless charging power management solutions will Become the mainstream of the future market. But the cost, size and efficiency of wireless charging have b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/219H02J17/00H02J50/10
Inventor 余丽丽
Owner 余丽丽