A voltage detection apparatus includes a supervisory unit that detects terminal voltage of battery cells that constitute a battery module, a high potential path, a low potential path, a differential amplifier that detects terminal voltage of the battery module. First and third switches are provided on the high potential path and second and fourth switches are provided on the low potential line. The voltage detection apparatus includes a bypass resistor that electrically connects the high potential path and the low potential path.
VOLTAGE DETECTION APPARATUS
2018-09-27
Patent
Electronic Resource
English
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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 |
VOLTAGE MEASUREMENT DEVICE, VOLTAGE DETECTION CIRCUIT, AND VOLTAGE DETECTION METHOD
European Patent Office | 2020
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