An automatic mains switch device (1) usable in combination with electrical appliances controlled through a remote control (5), include: a sensor (24) that the device uses to monitor the presence of load on the electric power line in manner to disconnect th...

[Object] To save standby power of electronic devices. [0002] [Constitution] A capacitor (1) is connected to an AC power supply (6), and a phase-leading current component passing the capacitor is used to make a DC power supply (10), as a power supply when i...

In a remote control receiving system of an electronic apparatus such as a television receiver, a charger (15) is connected to the output terminal of a sub regulator (18) for driving a load such as a microcomputer by using an AC power source (11) as an ener...