Circuit for remotely controlling a plurality of ceiling fans and lamps through single live wire
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The invention provides a circuit for remotely a plurality of ceiling fans and lamps through a single live wire. A ceiling-fan-and-lamp wall controlling unit supplies electric power to a plurality of ceiling-fan-and-lamp driving units in a single live wire manner. The ceiling-fan-and-lamp driving units drive the ceiling fans and the lamps. The ceiling-fan-and-lamp wall controlling unit is composed of a single-live-wire power supply module, a single-chip microcomputer control module, a phase shifting driving module, a zero-crossing detecting module, and a ceiling-fan-and-lamp controlling and setting module. Each ceiling-fan-and-lamp driving unit is composed of a control signal receiving module, a ceiling fan driving module and a lamp driving module. When operation state change of the ceiling-fan-and-lamp is required, a wall controlling switch unit transmits a ceiling-fan-and-lamp control signal which is controlled by phase shifting triggering and is composed of a guiding waveform and a data waveform to the ceiling-fan-and-lamp driving units. The ceiling-fan-and-lamp driving units realize controlling for the ceiling fans and the lamps according to the ceiling-fan-and-lamp control signal. When the ceiling fans and the lamps are in a normal operation state and the ceiling-fan-and-lamp control signal is not transmitted, the voltage waveform on the single live wire is a continuous and complete single-phase sinusoidal wave. The circuit for remotely the plurality of ceiling fans and lamps through the single live wire can be used for the occasion where a common illuminating lamp is replaced by the ceiling fan and the lamp through the single live wire, or the occasion where a common ceiling fan is replaced by the ceiling fan and the lamp through the single live wire.