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Device and method for regulating power of receiving terminal of wireless charging system

A technology of wireless charging and charging power, which is applied in the direction of circuit devices, battery circuit devices, charging stations, etc.

Inactive Publication Date: 2019-12-03
STATE GRID CORP OF CHINA +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a device and method for adjusting the power at the receiving end of a wireless charging system to solve the problem of how to efficiently and safely perform wireless charging

Method used

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  • Device and method for regulating power of receiving terminal of wireless charging system
  • Device and method for regulating power of receiving terminal of wireless charging system
  • Device and method for regulating power of receiving terminal of wireless charging system

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Embodiment Construction

[0036] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0037] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that the terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or ...

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Abstract

The invention discloses a device and a method for regulating the power of a receiving terminal of a wireless charging system. The device is correspondingly connected with a rectifying module and a battery of the wireless charging system; the device comprises a PWM controller and a gate pole driver, wherein the PWM controller is used for determining a duty ratio of an MOS tube according to the current required power of the battery and the rated power of a transmission terminal of the wireless charging system and determining a driving instruction according to the current duty ratio of the MOS tube; and the gate pole driver is used for controlling the closing time and the opening time of the MOS tube within a pulse circulation period according to the driving instruction so that the current charging power of the battery is regulated to be equal to the current required power. The device disclosed by the invention does not need to communicate with the transmission terminal by initiatively regulating the receiving power by virtue of the receiving terminal of the wireless charging system; the transmission terminal does not need communication cascading as well, so the problem about occurrence of potential safety hazards due to communication outage is prevented; the problem about of failed communication is prevented as well; and large-power wireless dynamic, safe and high-efficiency charging is realized.

Description

technical field [0001] The present invention relates to the field of metering and calibration, and more specifically, to a device and method for adjusting power at a receiving end of a wireless charging system. Background technique [0002] When the wireless charging system of the battery is charging, the power is generally adjusted according to the transmitting end, and the receiving end passively receives the power. When the battery is charged, the three-stage charging mode is generally adopted. When the battery power is relatively low, the battery needs full power supply. When the battery is close to full, in order to ensure safety and prolong battery life, the required charging power of the battery is reduced. This requires the wireless charging system to have a power regulation function. [0003] For electric vehicles, during static wireless charging, the ground transmitter of the wireless charging system and the vehicle receiver communicate with each other continuousl...

Claims

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Application Information

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IPC IPC(8): B60L53/12B60L53/62H02J7/02H02J7/00
CPCB60L53/12B60L53/62Y02T10/70Y02T10/7072Y02T90/12Y02T90/14Y02T90/16
Inventor 魏斌战张磊刘秀兰黄晓华张倩徐翀
Owner STATE GRID CORP OF CHINA
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