Improving the quality of light-emitting diode lamp drive circuit for street lighting

Abstract

The purpose of this research was to improve driver circuit of light-emitting diode bulb to be brighter by using same energy. The improvement of driver circuit of light-emitting diode bulb was done by creating new circuit, adding IC device and creating pulse signal which could control transistor to distribute electric current to LED bulb. The technique of adapting resistance was also applied, so the pressure which was used to drive circuit became low and the used energy became less than normal. However, the brightness increased and driver circuit of light-emitting diode bulb and set of street light’s bulb which used high power LED bulb for 20. The experiment was done in room which had average temperature at 20 degree Celsius. The brightness was measured at 27 centimeters from LED bulb. The graph of relation of LED’s electric current and brightness was presented to compare old drive circuit of LED to new circuit which was developed from result of equal adapting electric current. New circuit was brighter than old circuit 152.2%.