This is a very simple LED dimmer circuit which has 2 transistors, 1 resistor and 2 potentiometers. Typical segment displays LEDs consume around 25 mA for each segment and should be limited to this ...

The schematic of LED dimmer circuit along with the PCB layout can be seen above. Power supply don’t included with the circuit. You can use any 3.7v battery for this project. To get the best effect you ...

The schematic of LED dimmer circuit along with the PCB layout can be seen above. Power supply don’t included with the circuit. You can use any 3.7v battery for this project. To get the best effect you ...

A small round LED floodlight. Before installing them on the tractor, he tested them on the workbench. Frank was impressed with how much light both fixtures provided, exceeding the brightness of his ...

Controlling LED lights or DC motors is quite tough. Why not connect this 555 Timer IC, in order to help you control the intensity of light and the speed of the motor? Give it a try and let us know how ...

Fig. 1: The dimmer circuit schematic showing the filtering capacitors. Rob Atkinson, K5UJ, is an engineer out of Saint Charles, Ill., and one of the many readers who enjoy the DIY projects we feature ...

Most LED and CFL-driver circuits rely on coming up with a dimming circuit that can support a wide variety of triac dimmer switch types, but you’ll notice that in a lot of the “dimmable” lights you’ll ...

This paper presents a digital dimming control circuit used in a light-emitting diode (LED) driver, allowing it to dim multiple LED strings with only two input ports which receive serial data ...

When multichannel light-emitting diode (LED) strings are applied in display backlight application, it's necessary to keep the brightness identical and adjustable. This paper deals with the capability ...