Lithium battery current acquisition circuit
The utility model discloses a lithium battery current acquisition circuit, which comprises a current acquisition resistor RS and an operational amplifier, two ends of the acquisition resistor RS are respectively connected with a positive phase input end and a negative phase input end of the operatio...
Gespeichert in:
| Hauptverfasser: | , , |
|---|---|
| Format: | Patent |
| Sprache: | chi ; eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | The utility model discloses a lithium battery current acquisition circuit, which comprises a current acquisition resistor RS and an operational amplifier, two ends of the acquisition resistor RS are respectively connected with a positive phase input end and a negative phase input end of the operational amplifier through resistors R1 and R4, an output end of the operational amplifier is connected with a calculation unit through a resistor R9, and the output end of the operational amplifier is also connected with the negative phase input end through a resistor R8. And the positive phase input end of the operational amplifier is connected with a reference voltage end VREF through a resistor R5. The lithium battery current acquisition circuit comprises the current acquisition resistor RS and the operational amplifier, the characteristics of the operational amplifier are utilized to amplify the voltage signal converted by the acquisition resistor, the voltage signal amplified by N times is output after passing thr |
|---|