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

A wireless charging transmitter circuit

A wireless charging and transmitting circuit technology, applied in battery circuit devices, circuit devices, current collectors, etc., to expand the application range, improve accuracy, and facilitate tailoring

Active Publication Date: 2015-12-02
CHERY AUTOMOBILE CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a wireless charging transmitting circuit, which is used to solve the problem that it is difficult to control the transmitting circuit part in real time and effectively in the wireless charging system of the prior art

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
  • A wireless charging transmitter circuit
  • A wireless charging transmitter circuit
  • A wireless charging transmitter circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the wireless charging transmitting circuit provided by the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] see figure 1 , is a block diagram of a wireless charging transmitting circuit provided by an embodiment of the present invention. The wireless charging transmitting circuit is applied in a wireless charging system. Such as figure 1As shown, the wireless charging transmitting circuit includes a DSP control unit 100 , a driving circuit 200 , an energy transmitting circuit 300 , a wireless transmitting coil 400 , and a current sampling circuit 500 . Wherein, the DSP control unit 100 is connected to the drive circuit 200, and provides the PWM pulse control signal to the drive circuit 200 to control the normal operation of the wireless charging system; the drive circuit 200 control...

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

The invention discloses a wireless charging emission circuit comprising a DSP control unit, a driving circuit, an energy emission circuit, a wireless emission coil and a current sampling circuit. The DSP control unit is connected with the driving circuit. The DSP control unit is used for providing a PWM pulse control signal to the driving circuit so as to control normal working of a wireless charging system. The driving circuit is used for controlling multiple MOS tubes in the energy emission circuit to be conducted and closed in an alternating way according to the PWM pulse control signal. The energy emission circuit is used for exciting the wireless emission coil via conduction and closing of the multiple MOS tubes in the alternating way. The current sampling circuit is used for sampling working current of the energy emission circuit. The current sampling circuit comprises two sampling resistors which sample the working current in the alternating way. With application of the wireless charging emission circuit, accuracy of detection of the working current is enhanced and thus timely and effective protection of the system is realized.

Description

technical field [0001] The invention relates to the technical field of wireless charging, in particular to a wireless charging transmitting circuit. Background technique [0002] Wireless charging technology is a technology for charging by using corresponding coils at the sending and receiving ends to send and receive induced AC signals. At present, wireless charging technology can be divided into two methods, one is electromagnetic induction; the other is magnetic resonance, in which electromagnetic induction relies on the electromagnetic induction between coils to achieve energy transmission, and magnetic resonance uses two vibration frequencies The same objects to achieve efficient energy transfer. Electromagnetic induction wireless charging needs to control the charging equipment within the range of a few millimeters to a few centimeters. It belongs to near-magnetic field wireless charging and is more suitable for low-power electrical appliances, such as mobile phones a...

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 Patents(China)
IPC IPC(8): H02J7/00
Inventor 朱得亚邓飞贺
Owner CHERY AUTOMOBILE CO LTD