VEHICLE SIGNALLING DEVICE Russian patent published in 1996 - IPC

FIELD: electrical equipment; devices to automatically switch on and off load depending on illumination intensity; switching on and off of vehicle side lights. SUBSTANCE: device operates reliably on vehicles at ambient temperature variations, change in supply voltage and variable illumination intensity. Loads on storage battery at starting the engine under poor illumination conditions are materially reduced. This is provided by introduction of stabilizing circuit into input amplification stage and placing buffer stage between output of input amplification stage and input of output stage. EFFECT: enhanced reliability of operation, reduced load on battery. 3 cl, 3 dwg