Unlock instant, AI-driven research and patent intelligence for your innovation.

Active rectifier with maximum power transfer and/or maximum efficiency according to the distance between power transmitter and power receiver

A rectifier and power transmission technology, which is used in high-efficiency power electronic conversion, output power conversion devices, conversion of AC power input to DC power output, etc., to achieve the effect of reducing cost and area, fine impedance compensation, and extending power transmission distance.

Inactive Publication Date: 2019-06-25
ZINITIX +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Changing the load impedance limits the load current or voltage, so there is a problem that the operation is limited depending on the application.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Active rectifier with maximum power transfer and/or maximum efficiency according to the distance between power transmitter and power receiver
  • Active rectifier with maximum power transfer and/or maximum efficiency according to the distance between power transmitter and power receiver
  • Active rectifier with maximum power transfer and/or maximum efficiency according to the distance between power transmitter and power receiver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Embodiments of the present invention will be described below with reference to the drawings. However, the present invention is not limited to the examples described in this specification, and may be embodied in various other forms. The terms used in this specification are used to help the understanding of the embodiments, and are not intended to limit the scope of the present invention. In addition, the singular form used below also includes the plural form as long as the opposite meaning is not clearly indicated in the sentence.

[0039] Figure 4 A wireless charging receiving system 150 of one embodiment of the invention is shown.

[0040] which is, Figure 4 The structure of the wireless power receiving device 50 according to one embodiment of the present invention is designed so that the input impedance of the wireless power receiving device can be changed without additional external components.

[0041] The wireless charging receiving system 150 may include a t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Provided is a wireless power reception device including: a gate driver for generating a gate signal for switching between a turn-on voltage and a turn-off voltage; a rectifier connected to both ends of an inductor and including FETs whose on / off states are controlled by the gate signal; a rectifier output detection unit for sensing an output value of the rectifier; and an impedance control unit for controlling an impedance of the rectifier by controlling at least one of a duty ratio of the gate signal and a turn-on voltage for turning on the FET based on the output value.

Description

technical field [0001] The present invention relates to a technology of an active rectifier that can maximize the efficiency of power transmission and maximize the output power by changing the impedance of the active rectifier included in the wireless power receiving device. Background technique [0002] figure 1 A wireless charging system using conventional conventional passive rectifiers or active rectifiers is shown. [0003] The wireless charging receiving system 200 may include a transmitter 201 , a transmitter antenna 261 , a receiver antenna 262 , an external matching element 203 , a passive rectifier or an active rectifier 204 and a voltage regulator (Voltage Regulator) 205 . Wherein, the transmitting unit 201 and the transmitting antenna 261 may also be included in the transmitting device 240 . Furthermore, the receiving antenna 262 , the external matching element 203 , the passive rectifier or the active rectifier 204 and the voltage regulator (Voltage Regulator)...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/00H02J50/20H02M7/219
CPCH02J50/10H02M7/219H03K7/08Y02B70/10H02J50/12H02M1/08H02M1/0009
Inventor 金学润李康润朴英俊吴圣镇金相润张柄淇朴成文金起德
Owner ZINITIX