ELECTRICAL CONTROL EQUIPMENT

• Main Author: OTANI SHUHEI
• Format: Patent
• Language: English; Japanese
• Published: 06.10.2022
• 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; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

To provide electrical control equipment that can properly detect erroneous connection of a 200 V AC power supply to a power supply connection terminal and supply of the 200 V AC voltage while suppressing an increase in mounting area.SOLUTION: A water heater (electrical control equipment) includes a switching power supply circuit 200 that converts an AC voltage of 100 V supplied to a connection terminal T0 into a DC voltage of a predetermined voltage value, a control circuit that performs predetermined control using the DC voltage generated by the switching power supply circuit 200, and a determination circuit 300 arranged in the control circuit and determining whether an AC voltage of 200 V is supplied to the connection terminal T0.SELECTED DRAWING: Figure 2 【課題】電源の接続端子に２００Ｖの交流電源が誤って接続されて２００Ｖの交流電圧が供給されていることを、実装面積の増加を抑制しつつ、適正に検出することが可能な電気制御機器を提供する。【解決手段】給湯装置（電気制御機器）は、接続端子Ｔ０に供給された１００Ｖの交流電圧を所定電圧値の直流電圧に変換するスイッチング電源回路２００と、スイッチング電源回路２００により生成された直流電圧を用いて所定の制御を行う制御回路と、制御回路に配置され、接続端子Ｔ０に２００Ｖの交流電圧が供給されたか否かを判定する判定回路３００と、を備える。【選択図】図２