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Wireless desktop charger IPT testing method and device

A test method and test device technology, which are applied in the direction of measurement device, measurement of electricity, measurement of electric variables, etc., can solve the problems of inability to wirelessly charge the transmitter, such as charging performance operation and testing, and achieve objective and accurate test results, high efficiency, and guaranteed accuracy. sexual effect

Inactive Publication Date: 2017-12-15
BOZHON PRECISION IND TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Patent CN104880635B discloses a detection device for wireless charging receivers. Users can make accurate evaluations of the performance of different types of wireless charging receivers during charging according to the detected data, but the detection device cannot Operate and test the charging performance of different models of wireless charging transmitters (wireless chargers)

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  • Wireless desktop charger IPT testing method and device
  • Wireless desktop charger IPT testing method and device
  • Wireless desktop charger IPT testing method and device

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Embodiment Construction

[0030] The embodiments involved in the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0031] Such as figure 1 As shown, L1 is the transmitting coil (primary coil) of the wireless charger, U1 is the input voltage, I1 is the input current, L2 is the receiving coil (secondary coil) of the charging device, U2 is the load voltage, I2 is the load current, R is the load, the charging efficiency formula η=(U1*I1) / (U2*I2) can be obtained. When the input voltage U1 and the input current I1 are known, it is only necessary to measure the load voltage U2 and the load current I2 in the circuit, The charging efficiency of the wireless charger can be calculated.

[0032] Thus, if figure 2 As shown, a wireless cradle charging IPT test method includes the following steps:

[0033] S1. Put the product to be tested horizontally into the carrier, supply power to the product to be tested, and the product to be tested will emit a magn...

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Abstract

The invention provides a wireless desktop charger IPT testing method. The method includes the following steps S1 a product to be tested is horizontally put into a carry tool to be charged and the product to be tested sends the magnetic field; S2 a first PCB board receives the magnetic field emitted by the product to be tested and is converted into an AC signal; S3 the AC signal is rectified by the second PCB board and converted into a DC signal; and S4 the DC signal is connected to the third PCB board to extract the required accurate current and voltage. The invention further provides a wireless desktop charger IPT testing device which controls the constant current source electronic load and a 16-bit digital multimeter and extracts the required accurate current and voltage by controlling a single-chip microcomputer, and provides the reference data for testers when performing the performance detection of a wireless desktop charger, thereby accurately evaluating the charging performance of the different models of wireless desktop chargers.

Description

technical field [0001] The invention relates to the technical field of charger detection, in particular to an IPT test method and device for a wireless cradle charger. Background technique [0002] Wireless charging, also known as inductive charging or non-contact inductive charging, is a device that uses near-field induction, that is, inductive coupling, to transmit energy to electricity from a power supply device (charger). Generally speaking, there is a coil in the wireless charging charger, which is driven by alternating current to generate an alternating electromagnetic field. There is another coil in the electric device to receive the alternating electromagnetic field and convert it into electrical energy. Charging the battery is equivalent to putting the primary coil and secondary coil of the transformer into the charger and the electrical device respectively. Wireless charging is becoming more and more widely used in various electronic products due to its advantages...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 王建福张小伟洪豪杰
Owner BOZHON PRECISION IND TECH CO LTD
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