PWM Constant Current Power LED Driver
Power LED driver circuit based on LM393 op amp compared to other LED driver with PWM input is not working very well, but without a microcontroller PWM or PWM input can be made from other sources. There are three... Electronics Projects, PWM Constant Current Power LED Driver "led projects, power electronic projects, pwm circuits, " Date 2019/08/03
Power LED driver circuit based on LM393 op amp compared to other LED driver with PWM input is not working very well, but without a microcontroller PWM or PWM input can be made from other sources. There are three different power options power LED 1W 350mA, 700mA 3W power LED, power LED 5W power required by one of R2, R11 resistor values are determined.
High energy efficiency switch mode converter. 5V-24V supply voltage range. . Cycle-by-cycle, real constant current circuit 1 adjustable output current maximum power output of 18W. (24v 3w LED module for working with) the current control potentiometer (with spacings of about 9%)
Output short circuit protection PWM input – including the Arduino can be controlled via external microprocessor. Compact design – 1 x 1.5 x 0.5 inches (excluding the pot shaft)
Power LED driver circuit is used in the power MOSFET IRF 9024 or 2955 NTD irf3710 is not commercially available can be used instead.
Source: instructables.com/id/Poormans-Buck/ alternative link:
FILE DOWNLOAD LINK LIST (in TXT format): LINKS-19260.zip
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Walking Led Light 555
Our circuit was considered little different from the usual circuit. Different from the usual operation of the CD4017 circuit.
Hopefully of interest to you. They remain in one direction lights are burning and burn progressing. Lighting sequence starts from LD1. Ie, starting from the beginning after burning LD16 LD1 goes out.
P1 potentiometer to set the speed for burning was made. Request in accordance with the potentiometer or poyansiyometr available. Led by the color of the LED current limiting resistors 330 ohms to 680 ohms should use.