Voltage-temperature integrated testing device of storage battery set
A battery pack, voltage technology, applied in the direction of using electrical devices, thermometers, measuring devices, etc., can solve the problem of increasing the cost of battery inspection equipment, and achieve the effect of high-precision inspection
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[0012] Such as figure 1 As shown, an MCU (micro control unit) of an embodiment of the present invention is connected to a decoder, and the output terminals of the decoder are respectively connected to the optocoupler relay for voltage gating measurement and the optocoupler relay for temperature gating measurement. After gating the voltage of a single battery, measure the terminal voltage of the battery through the isolated output of the differential mode operational amplifier. When the voltage of the single battery is detected, the MCU stores its terminal voltage as the total voltage of the thermistor voltage divider circuit. At this time, the battery voltage inspection gating circuit remains closed, the temperature measurement optocoupler relay is closed, and the thermistor It forms a voltage divider circuit with the resistor at the differential mode output terminal. The divided voltage value is measured through A / D sampling, compared with the total voltage, the MCU calculate...
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