Abstract:
This work presents a simple design and implementation of a series connected remotely
controllable regulator which can be used for both resistive and inductive type loads driven
by AC power. Commonly available remote controlled regulators require access to both
live and neutral connections. The designed regulator enables the single line power
controlling which offers a high level of convenience to the user. The power supplied to
the load is controlled by a Triac, because it can control the current flow over both halves
of an alternating cycle. The trigger on the gate terminal is set by a diac. The active
components of the regulator are powered by a Switch Mode Power Supply (SMPS) using
the voltage drop across the Triac. Radio Frequency (RF) remote control module controls
the device and improved user satisfaction at a much better range. RF does not require the
typical IR point-and-shoot action. The regulator includes a timer which enables the user
to control both the level and the period of power. A seven segment display unit is included
in the design to indicate the supplied power level and the timersetting. PICmicro® 16F873
microcontroller is used to drive the system and the timer. When compared with remote
controlled regulators which require alternative additional electrical wiring system, the
designed regulator is much more user friendly. It has many advantages such as low power
consumption, small in size and low manufacturing cost and etc.
