PROBLEM TO BE SOLVED: To provide a battery system controller capable of dispersing heat evolution approximately equalized in a pair of semiconductor switches.SOLUTION: A main FET and sub FET are connected in series between a pair of batteries so that forward directions of parasitic diodes are reverse to each other. When controlling the main FET and sub FET from OFF to ON, a switch control circuit supplies, as gate voltage, gradually varying voltage that gradually increases before supplying constant voltage VP as the gate voltage. At this time, the switch control circuit makes gradually varying voltage to be supplied to the sub FET connected to the low voltage side of the pair of batteries be lower than gradually varying voltage to be supplied to the main FET connected to the high voltage side.SELECTED DRAWING: Figure 2
【課題】一対の半導体スイッチの発熱をほぼ同じにして、発熱を分散できるバッテリシステム制御装置を提供する。【解決手段】メインFET及びサブFETが、一対のバッテリの間に、寄生ダイオードの順方向が互いに逆向きになるように直列接続されている。スイッチ制御回路は、メインFET及びサブFETをオフからオンに制御するとき、徐々に増加する除変電圧をゲート電圧として供給した後、一定電圧VPをゲート電圧として供給する。このとき、スイッチ制御回路は、一対のバッテリのうち電圧の低い側に接続されたサブFETに供給する除変電圧を、電圧の高い側に接続されたメインFETに供給する除変電圧よりも低くする。【選択図】図2
BATTERY SYSTEM CONTROLLER
バッテリシステム制御装置
2017-09-07
Patent
Electronic Resource
Japanese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / 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 |
CELL-CONTROLLER, BATTERY CONTROLLER, BATTERY MANAGEMENT SYSTEM, AND BATTERY SYSTEM
European Patent Office | 2020
|Cell Controller, Battery Controller, Battery Management System, and Battery System
European Patent Office | 2021
|Cell controller, battery controller, battery management system, and battery system
European Patent Office | 2024
|RADIO BATTERY SYSTEM, AND CELL CONTROLLER AND BATTERY CONTROLLER THAT HAVE RADIO BATTERY SYSTEM
European Patent Office | 2016
|