Battery safety self-checking protection circuit

The utility model provides a battery safety self-checking protection circuit. The protection circuit comprises a series battery pack, an electric signal acquisition unit AFE, a controller MCU, an independent double protection circuit and a current-limiting protection circuit. The electric signal acq...

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Bibliographische Detailangaben
Hauptverfasser:	YAN LIJUN, HUANG ZHIWEI, MAO MINJIANG, LIU ANFU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	The utility model provides a battery safety self-checking protection circuit. The protection circuit comprises a series battery pack, an electric signal acquisition unit AFE, a controller MCU, an independent double protection circuit and a current-limiting protection circuit. The electric signal acquisition unit AFE is connected in parallel with each battery of the series battery pack, is connected with the current-limiting protection circuit, and is used for acquiring voltage signals of the batteries and current signals of the current-limiting protection circuit; the current-limiting protection circuit is connected with the negative electrode of the series battery pack; the independent double protection circuit is respectively connected with the electric signal acquisition unit AFE and the current-limiting protection circuit; and the independent double protection circuit is in feedback connection with the controller MCU. And the controller MCU reads the state of the electric signal acquisition unit AFE and j