Embodiments of the present disclosure provide a voltage collection circuit and a circuit control method. The voltage collection circuit includes a battery monitoring chip, n switch units, and a controller. The battery monitoring chip is connected to a battery module including k battery cells, a battery cell CELL(i) is any one of the k battery cells. A switch unit Ji is connected in parallel to the battery cell CELL(i), a switch unit Js is connected in parallel to voltage collection channels Cs and C(s−1). The battery monitoring chip is configured to collect voltages of the k battery cells by using n+1 voltage collection channels. The controller is connected to the battery monitoring chip and control ends of the n switch units and configured to control working statuses of the n switch units according to the voltages collected by using the n+1 voltage collection channels.
Voltage collection circuit and circuit control method
2020-10-27
Patent
Elektronische Ressource
Englisch
IPC: | H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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