Battery charging test device

A technology for testing devices and battery charging, which is applied to measuring devices, measuring electricity, and measuring electrical variables. It can solve problems such as misjudgment, battery voltage overvoltage, and increased loop impedance, so as to ensure accuracy and overcome misjudgments. Effect

Inactive Publication Date: 2012-07-04
沈阳市联盛科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the defect that the charging test method of the series ammeter in the prior art increases the loop impedance, thereby causing a misjudgment of the battery voltage over

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Embodiment Construction

[0018] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

[0019] figure 2 Shown is the block diagram of the circuit structure of the battery charging test device of the present invention, wherein said battery charging test device includes a charging unit 1, a battery 2, a resistor 5, a multi-channel voltage data collector 6, a voltage data processing unit 7 , a storage unit 8 , a display device 9 and a storage format conversion unit 10 .

[0020] The charging unit 1 is electrically connected to the battery 2 for charging the battery 2; the resistor 5 is connected in series between the charger 1 and the battery 2; the multi-channel voltage data collector 6 is connected to the battery 2 and the battery 2 The resistor 5 is electrically connected to detect the voltages of the battery 2 and the resistor 5 respectively; the voltage data processing ...

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Abstract

The invention discloses a battery charging test device. The battery charging test device comprises a battery, a charging unit, a resistor, a multi-channel voltage data acquirer and a voltage data processing unit, wherein the resistor is connected in series between the battery and the charging unit; the multi-channel voltage data acquirer is used for respectively detecting voltages of the battery and the resistor; and the voltage data processing unit is used for converting voltage data which are acquired by the multi-channel voltage data acquirer into current data and storing a resistance value of the resistor. The battery charging test device has the advantages that: by connecting the resistor with a fixed resistance value in series and detecting the voltage of the battery and the voltages of two ends of the resistor which is connected in series to a charging loop and has the fixed resistance value, the defect of misjudgment of over-voltage of the battery caused by voltage fluctuation is overcome, so that data which are acquired in the whole charging process and discharging process are normal, and the data which are acquired in the recharging process are also normal; and errors of battery charging test data caused by the misjudgment of over-voltage of the battery due to series connection of an ammeter in the conventional charging mode are eliminated, and the accuracy of the test data is ensured.

Description

technical field [0001] The invention relates to a battery charging test device, in particular to a battery charging test device of a mobile terminal. Background technique [0002] In the traditional battery charging test, especially in the battery charging test of mobile electronic products, such as figure 1 As shown, the voltmeter 4 is connected in parallel to both ends of the battery 2 to measure the battery voltage, and the ammeter 3 is connected in series in the charging circuit, that is, between the charging unit 1 and the battery 2, so as to measure the charging current of the battery 2. Because when the mobile electronic product is charging, the voltage detection pin (VBATSENCE) of the baseband chip of the mobile electronic product needs to detect the voltage of the battery in real time, thereby judging whether the battery voltage is overvoltage, if the detection reaches the battery overcharge threshold Voltage, then execute the hardware shutdown action. However, si...

Claims

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Application Information

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IPC IPC(8): G01R31/36
Inventor 任东
Owner 沈阳市联盛科技有限公司
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