Battery signal extraction circuit
The embodiment of the invention provides a battery signal extraction circuit. The circuit comprises an alternating current disturbance regulation and control circuit, a voltage division circuit and a voltage alternating current signal extraction circuit, the alternating current disturbance regulatio...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The embodiment of the invention provides a battery signal extraction circuit. The circuit comprises an alternating current disturbance regulation and control circuit, a voltage division circuit and a voltage alternating current signal extraction circuit, the alternating current disturbance regulation and control circuit is connected in parallel to the two ends of the battery and provides alternating current; the voltage division circuit is connected to two ends of the battery in parallel, and outputs a first voltage signal and a second voltage signal after dividing the terminal voltage of the battery; wherein the first voltage signal is a direct current and alternating current superposed voltage signal, and the second signal is a direct current voltage signal; the input end of the voltage alternating current signal extraction circuit is connected with the output end of the voltage division circuit, and the voltage alternating current signal extraction circuit carries out differential processing on the first s |
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