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A voltage control method and device for wireless power supply

A voltage control method and wireless power supply technology, applied in circuit devices, electrical components, etc., can solve problems such as increased energy loss, transmitter loss, etc.

Active Publication Date: 2021-09-24
深圳赫兹创新技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The embodiment of the present invention provides a voltage control method for wireless power supply, which aims to solve the problem that in the prior art, the transmitting end often produces losses (when the load is not connected), and is doing useless work, thus greatly increasing the load in the wireless power supply system. The problem of energy loss when switching on

Method used

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  • A voltage control method and device for wireless power supply
  • A voltage control method and device for wireless power supply
  • A voltage control method and device for wireless power supply

Examples

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Embodiment 1

[0023] figure 2 This is a flowchart of the voltage control method for wireless power supply provided in Embodiment 1 of the present invention. The method is applied to a wireless power supply system. The wireless power supply system includes a transmitter and a receiver, and the transmitter has a voltage output device and a current detection device. The method includes:

[0024] Step 201 , controlling the transmitting end to output the detection voltage at a preset period.

[0025] Wherein, the detection voltage is less than or equal to the normal voltage output by the transmitting end when the wireless power supply system works normally. The normal voltage is when the load is turned on, the transmitter outputs the voltage that can make the load work normally. This can reduce the loss caused by the wireless power supply system can work normally when the load is disconnected and the transmitter needs to output the normal working voltage and wait for the load to be connected t...

Embodiment 2

[0041] image 3 It is a flowchart of step 202 in the voltage control method for wireless power supply provided by the second embodiment of the present invention, and step 202 includes:

[0042] Step 301 , after the detection voltage is output, the current detection device is controlled to collect the current of the transmitting end multiple times.

[0043] Specifically, after the detection voltage is output, the current of the transmitting end can be collected multiple times within a preset period. Each time the transmitter current is collected, there is a first current sampling period, and the smaller the first current sampling period, the better.

[0044] Step 302: Determine the current of the transmitter in a preset period according to the current of the transmitter collected multiple times.

[0045] Specifically, after the current of the transmitting end is collected multiple times within the preset period, the average value of the current collected multiple times can be...

Embodiment 3

[0049] Figure 4 This is a flowchart of another method for controlling the voltage of wireless power supply provided by the third embodiment of the present invention. After step 205, the method further includes:

[0050] Step 401: Acquire the current of the transmitter detected by the current detection device at preset time intervals.

[0051] Step 402 , when the detected current of the transmitting end is less than the second preset multiple of the current detected in the last preset time interval, return to the step of controlling the transmitting end to output the detection voltage.

[0052] The preset time interval is the period of current detection during the normal operation of the load.

[0053] It should be noted that the preset period and the preset time interval may be the same (the preset period is equal to the preset time interval) or different (the preset period is less than the preset time interval, or the preset period is greater than the preset time interval)....

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Abstract

The present invention is applicable to the technical field of wireless power supply, and provides a voltage control method and device for wireless power supply, which are applied to a wireless power supply system. The wireless power supply system includes a transmitting end and a receiving end, and the transmitting end has a voltage output device and a current The detection device; the method includes: controlling the transmitting end to output a detection voltage at intervals of a preset period, wherein the detection voltage is less than or equal to the normal voltage output by the transmitting end when the wireless power supply system is working normally; obtaining the The current detection device detects the current of the transmitting terminal; judges whether the detected current satisfies a preset condition; and controls the transmitting terminal to output a normal voltage when the detected current meets the preset condition. The invention greatly reduces energy loss when the load is not connected.

Description

technical field [0001] The invention belongs to the technical field of wireless power supply, and in particular relates to a voltage control method and device for wireless power supply. Background technique [0002] In many application scenarios, for example, in the wireless power supply system of electric vehicle seats, the load is disconnected most of the time. However, in order to make the load end work as soon as the switch is turned on, the transmitter end usually has to provide the output voltage (normal voltage) all the time, which means that the transmitter end is producing loss and doing useless work many times (when the load is not connected), which greatly increases the The energy loss in the wireless power supply system when the load is not connected. SUMMARY OF THE INVENTION [0003] The embodiment of the present invention provides a voltage control method for wireless power supply, which aims to solve the problem that in the prior art, the transmitting end i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/00H02J50/80H02J50/10
CPCH02J50/00H02J50/10H02J50/80
Inventor 胡锦敏曹达平
Owner 深圳赫兹创新技术有限公司
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