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Library's collection Library's IT development CancelIn this thesys, a device has been made which is intended to control the
light of fluorescent lamp.
This dimmer need some supporting circuit, like : VCO circuit, frequency
devider circuit with factor 2, grounding separator circuit and fluorescent lamp
driver circuit.
The voltage being received by the VCO will be changed to be square
signal, then devided into two contra signal. The square signal have to pass
grounding separator circuit. This circuit have function to separate the grounding
of digital circuit with the grounding of voltage used by lamp driver. This separator
was needed so that digital circuit was not influenced by the noise that rises
because load in electric line. Signal that produced by grounding separator was
used to drive driver circuit of fluorescent lamp.
Laboratorium testing has shown, frequency fluorescent lamp can be
changed, so we can control the lightning lamp