Archives: Projects
Under Voltage and Over Voltage Monitor for 5V
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...
Continue ReadingDual MOSFET Driver – Two Channel DC SSR Using MOSFETS & Gate Driver
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...
Continue ReadingOver Speed Sensor – Over Speed Alarm using Magnetic Pickup Sensor
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...
Continue ReadingLow-Cost LED Dimmer using LM3578
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...
Continue Reading2.5W Stereo Audio Amplifier using LM4752
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...
Continue ReadingCooling Fan Controller Using Temperature Sensor LM35
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...
Continue ReadingSmart Dual Coil Latching Relay Driver – Bistable Relay Module
This Smart Dual Coil latching Relay board can control the ON/OFF power of a device by applying a short voltage pulse to input 1 and input 2. This project is useful in low power applications since the coil is not powered all the time and only requires a short voltage pulse. The relay...
Continue ReadingCurrent-Sense Amplifier with Dual Over Current Level Monitor & Alert Output
The project presented here is a high common-mode current sense amplifier with two high-speed comparators to detect out-of-range current conditions. The comparators are configured to detect and respond to dual over current conditions. These devices feature an adjustable limit threshold...
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