Archives: Projects

This is a high-efficiency and reliability DC/DC converter with a dimming feature for super high brightness LEDs.  The project is built using L6902D chip. L6902 is a complete and simple step-down switching regulator with adjustable current limit. The current control loop with external...

The project described here is a very useful device for use with linear actuators. This controller prevents the actuator from reaching the physical movement limits of the actuator, thus it prevents burnout of motor and physical/mechanical damage to the actuator itself to the...

This project is built using MC33161 IC, which is a universal voltage monitor intended to be used in a wide variety of voltage sensing applications. The project offers an economical solution for positive and negative voltage detection. The circuit consists of two comparator channels...

The project presented here is a dual-channel MOSFET DC relay. The project is capable of driving a 5A load on each channel with an input supply of 48V DC. The LTC7067 chip drives the two high-side N-Channel MOSFETS with supply voltages up to 48V DC. Its powerful 0.8Ω pull-down and...

This is an over-speed sensor module, that provides an audible warning and signals output when the speed of a machine is above a set point. The module can be used in applications such as Engines, Machines, Sports machines, and Fitness Equipment. The speed of the machine or engine can...

This Low-cost LED dimer project includes two main parts, an LM3578 chip, and a MOSFET. The LM3578 generates a PWM signal, and Q1 MOSFET helps to drive a high current LED. The project also includes current limit feature. Over current trigger point is set to 1.1A. LED intensity can be...

The Stereo Audio Amplifier project shown here is capable of delivering 2.5W per channel of continuous average output power to 4Ω loads using a single 12V supply at 10% THD+N. The project is built using the LM4752 chip. This chip is specifically designed for single supply operations...

The project presented here is a low-cost solution for heat management of the heatsink and various equipment that requires automatic control of a cooling Fan. The project is built using a very cheap LM358 OPAMP. LM358 is used as a comparator, and a trimmer PR1 is provided to set the...