Looking for a simple circuit to control the light intensity of Light Emitting Diodes (LEDs) or similar lighting sources? Here is an Arduino based circuit with three independent pulse width modulated ...

Posted in Arduino Hacks, LED Hacks Tagged 595, pwm, shift register ← Hackaday In The Social Tangle Roomba Used To Map Indoor Air Quality → ...

Most projects are built on abstractions. After all, few of us can create our own wire, our own transistors, or our own integrated circuits. A few months ago, [Julian Ilett] found a problem using th… ...

7. To turn the luminescence off: S3=1, S5=1 So, to get PWM you can simply play with S3 while holding S5=1. The power switch in Figure 2 is even simpler and consumes less power. Figure 2 Power switch ...

The 2-MHz converter in Figure 3 features 85% efficiency (87% without EMI filters) at 12-V V IN, 15-V V LED, 330-mA I LED, and up to 2000:1 PWM dimming ratio at 120 Hz.

The LT3952 has a gate driver for a PMOS LED disconnect switch, delivering dimming ratios of up to 4,000:1 using an external PWM signal. For less demanding dimming requirements, the CTRL pin can be ...

The machine uses a ‘grbl’ controller, which has an Arduino-based circuit that includes multiple outputs, including a powerful 24V pwm signal that is generally used to drive a 60-80W spindle motor.