BYPASS DEVICE IN THE LIGHTING CONTROL SYSTEM WITHOUT NEUTRAL CONDUCTOR Russian patent published in 2017 - IPC H05B33/08 

FIELD: lighting.

SUBSTANCE: device (340), connected to the output terminal of the controller (330), having a single input terminal, connected to the first power terminal of the external power source (305), which provides AC voltage between the first power terminal and the second power terminal, includes the tap-off circuit (342) and the switching configuration (344/346) for detecting if the controller provides power supply to the load (320) or disconnects the load. When the controller is turned off, the switching configuration connects the bypass circuit between the output terminal of the controller and the second power terminal for providing the current path between the output terminal of the controller and the second power terminal. When the controller is turned on, the switching configuration disables the tap-off circuit between the output terminal of the controller and the second power terminal.

EFFECT: provision of the necessary leakage current in the controller, when the controller is switched off and disconnects the load, the power to which is supplied from the controller.

23 cl, 6 dwg