Led Dimmer Circuit With Lm317 Revealnew The above circuit is using an lm317 voltage regulator ic as a current regulator. since the leds are current driven, their brightness can be controlled by limiting their current. here we are adjusting the brightness of 10 super bright white leds, but the number of leds can be increased. the 200Ω pot controls the current brightness of leds. #electrotechcc hello friends, today in this video i've shown how to make a 12v led dimmer circuit. digital fundamental [digital electronics] full course: htt.
Led Dimmer Circuit Using Lm317 Voltage Regulator Ic How to make led dimmer circuit with lm 317t ic music by ncs:track 1: different heaven. The total output current of lm317 is 1.5a, due to which we have used a separate current limiting resistor with each led which will protect them on the maximum current output from the ic. the circuit can be operated with 9v to 12v dc but you can also operate it with 6v by changing the values of resistors r2 to r11 to 290 ohms. The wiring steps are as follows: connect the lm317 to the breadboard. connect the 10 uf capacitor with the in pin. if you are using electrolytic capacitors be sure to connect the to the gnd. connect the 100 ufcapacitor with the out pin. connect the in with the plus terminal of the power source. Lm317t is a voltage regulator ic whose output can be varied using an external resistor. this is a monolithic integrated circuit which is an adjustable 3 terminal positive voltage regulator that supplies a load current of 1.5a with an adjustable output voltage over a 1.2v to 37v. it has internal current limiting, thermal shut down, and safe area.
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