A battery protection device for protecting a battery (1;41) comprises an electrical circuit arranged to generate or suppress a ripple current through said battery. Said electrical circuit comprises a ripple generator (5) arranged to produce an electrical ripple current, a first ripple injector (21;48) to be arranged on a positive power line (3) to the battery, said first ripple injector being arranged to transfer said electrical ripple current to said positive power line, and a second ripple injector (22;49) to be arranged on a negative power line (4) to the battery. Said second ripple injector is arranged to transfer said electrical ripple current to said negative power line. Said first and second ripple injector are arranged to operate in a differential mode, e.g. opposite sign on injected current.
Device and method for protecting a battery
Vorrichtung und Verfahren zum Schutz einer Batterie
Dispositif et procédé de protection de batterie
2017-12-13
Patent
Electronic Resource
English
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |