Ac Stabilizer Circuit | Triac Controlled Automatic Voltage Stabilizer

 This triac control AC voltage stabilizer circuit has been design, the voltage switching transitions are very smooth with minimum wear and tear, resulting in efficient voltage stabilization. Discover the whole construction procedure of this unique, solid state mains voltage stabilizer.
The proposed circuit of a triac controlled AC voltage stabilizer will provide an excellent 4 step voltage stabilization to any appliance at its output. With no moving parts involved its efficiency is further enhanced. Find out more of this silent operator: power guard.The circuit of an automatic voltage stabilizer discussed in one of my previous articles, though useful, due to its simpler design, does not have the capability of controlling the different levels of varying mains voltages discretely. The proposed idea though not tested, looks pretty convincing, and if the critical components are properly dimensioned, should work as expected.
The present circuit of triac controlled AC voltage stabilizer is outstanding in its performance and is almost an ideal voltage stabilizer in every respect. As usual the circuit has been exclusively designed by me. It is able to control and dimension the input AC mains voltage accurately through 4 independent steps. The use of triacs make it sure that the changeovers are quick (within 2 mS) and with no sparks or transients usually associated with relay type of stabilizers. Also since no moving parts are employed, the entire unit becomes completely solid state and almost permanent.

CAUTION: EACH AND EVERY POINT OF THE CIRCUIT PRESENTED HERE MAY BE AT AC MAINS POTENTIAL, THEREFORE EXTREMELY DANGEROUS TO TOUCH IN SWITCHED ON POSITION. UTMOST CARE AND CAUTION IS ADVISED, USE OF A WOODEN PLANCK UNDER YOUR FEET IS RECOMMENDED. NEWBIES PLEASE KEEP AWAY.

Triac based DC Motor Speed Controller Circuit

This Triac-based dc motor speed controller circuit is designed for controlling the speed of small household motors like drill machines. The speed of the motor can be controlled by changing the setting of P1. The setting of P1 determines the phase of the trigger pulse that fires the Triac. The circuit incorporates a self-stabilizing technique that maintains the speed of the motor even when it is loaded.

For example, when the motor of the drill machine is slowed down by the resistance of the drilled object, the counter-EMF of the motor also decreases. This results to a voltage increase in R2-P1 and C3 causing the Triac to be triggered earlier and the speed increases accordingly.