To provide a discharge device capable of making discharge current variable.SOLUTION: A discharge device connected to an object circuit in parallel and discharging electric charge accumulated by the object circuit as discharge current has: a main circuit having a semiconductor switch which transits from a non-conduction state to a conduction state when voltage between terminals of the object circuit exceeds predetermined discharge start voltage, and a discharge resistor to which the discharge current is energized when the semiconductor switch becomes the conduction state; and a current variable part making the discharge current variable.SELECTED DRAWING: Figure 1
【課題】放電電流を可変することが可能な放電装置を提供する。【解決手段】対象回路に並列接続され、対象回路が蓄積した電荷を放電電流として放電させる放電装置であって、対象回路の端子間電圧が所定の放電開始電圧を超えると非道通状態から導通状態に遷移する半導体スイッチと、当該半導体スイッチが導通状態になると放電電流が通電される放電抵抗器とを備える主回路と、放電電流を可変する電流可変部とを備える。【選択図】図1
DISCHARGE DEVICE
放電装置
2023-12-13
Patent
Electronic Resource
Japanese
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 |