International Journal of Science and Technology (IJST)

Electrical Method in Automated On-Off and Speed-Selection Switching of 220V AC Electric Fan

This paper is concerned with the 220VAC electric fan. Most electric fans sold in the market today are still manually operated, except for a few automated ones. Mostly, the ON-OFF and SPEED-SELECTION switching is still manually done by the user. The purpose of this paper is to present an innovation on the said manually-operated ON-OFF and SPEED-SELECTION switching of the common household 220VAC electric fan. Here, the switching is to be automated by means of ambient temperature; but no microcontroller, with its program, no internet would be used. Generally, this innovation is an automated ON-OFF and SPEED-SELECTION switching using electrical method. As temperature rises, the electric fan itself automatically switches ON and selects to the higher SPEED. As temperature lowers, the electric fan also automatically selects to the lower SPEED, corresponding to a pre-set temperature, and, switches OFF as temperature lowers even more. This study utilizes the applied technological research design. It applies scientific knowledge to solve a problem or to develop a new method. The findings of this study show that the innovation is feasible, technically doable, and implementable. In conclusion, the innovation is manufacturable, integrable, and adoptable in the current designs of the 220VAC electric fans commonly sold in the market today.