Power supply device having sequentially connected battery modules

• Main Authors: Goto, Shigeaki, Yanagizawa, Naoki, Tomura, Shuji, Izumi, Junta, Ootsuka, Kazuo, Tanemura, Kyosuke, Kimura, Kenji
• Format: Patent
• Language: English
• Published: 18.10.2022
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SYSTEMS FOR STORING ELECTRIC ENERGY

Provided is a power supply device which includes a plurality of battery modules and in which the battery modules are connected in series with one another in accordance with a gate driving signal from a controller. The power supply device includes a disconnecting part configured to forcibly isolate the battery module from a series connection regardless of the gate driving signal, and limits, in accordance with a target output voltage value, a number of the battery modules to be forcibly isolated by the disconnecting part.