To provide a semiconductor relay drive control circuit capable of preventing an excessive temperature rise due to an electric current of a semiconductor relay.SOLUTION: A semiconductor relay drive control circuit comprises a determination unit and a switching control unit. The determination unit determines a relationship between a voltage of a direct current power supply and a voltage of a capacitive load. The switching control unit controls a drive unit configured to output a drive signal to a control terminal of a transistor included in a semiconductor relay provided between the direct current power supply and the capacitive load on the basis of a determination result of the determination unit, to switch a drive of the transistor to any one of intermittent drive and continuous drive.SELECTED DRAWING: Figure 5
【課題】半導体リレーの電流による過度な温度上昇を防止することができる半導体リレー駆動制御回路を提供する。【解決手段】半導体リレー駆動制御回路は、判定部と、切替制御部と、を備える。前記判定部は、直流電源の電圧と容量性負荷の電圧との関係を判定する。前記切替制御部は、前記直流電源と前記容量性負荷との間に設けられる半導体リレーが備えるトランジスタの制御端子に駆動信号を出力する駆動部を前記判定部の判定結果に基づき制御して、前記トランジスタの駆動を間欠駆動及び連続駆動のいずれかに切り替える。【選択図】図5
SEMICONDUCTOR RELAY DRIVE CONTROL CIRCUIT
半導体リレー駆動制御回路
2020-09-24
Patent
Electronic Resource
Japanese
IPC: | H03K PULSE TECHNIQUE , Impulstechnik / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |