Archives: Projects
Continuous Conduction Mode Pre-Converters Module for Power Factor Controller
This compact module shown here is a Continuous Conduction Mode (CCM) Power Factor Correction Step up Pre-Converter. All-important inputs and output pins are broken out for use in your application, making this board hackable! Please refer to the datasheet of the NCP1654 chip for easy...
Continue ReadingPrecision Thermocouple Amplifiers with Cold Junction Compensation – Temperature Range −25°C to +400°C
This Thermocouple Amplifier project provides a simple, low-cost solution for measuring thermocouple temperature. This board simplifies many of the difficulties of measuring thermocouples output. An integrated temperature sensor performs cold junction compensation. A fixed-gain...
Continue ReadingUniversal Input AC/DC Switching Buck Regulator – 85V -265V AC Input – 5V/150mA DC Output
The project presented here is a universal input AC/DC switching buck regulator with ultra-low standby power that is capable of delivering up to 2.5W output power. The RAA223012 chip is the heart of the project which combines constant off-time control for heavy load and Pulse Frequency...
Continue ReadingMagnet Based Rotary/Linear Encoder Module with Quadrature Output
This sensor module is a simple solution to build a magnet-based rotary encoder. The project is based on the AS5304 chip with integrated Hall elements for measuring linear or rotary motion using multi-pole magnetic strips or rings. This allows the usage of the module in applications...
Continue ReadingStepper Motor Based Rotary Encoder with Clock and Up/Down Direction Signal Output
This project enables the users to use a stepper motor as a rotary encoder for position control and Up/Down direction control. A bipolar stepper motor can be used as a rotary sensor as it generates two channel strings of pulses by turning the shaft. The circuit provides Step pulse and...
Continue ReadingLow-Cost Boost Converter 3.3V Input – 5V Output at 250mA
This is a low-cost boost converter that converts a 3.3V input to 5V at 250mA load current. The LM2578A chip is used to build this project. The LM2578A is a switching regulator which can easily be set up for such DC-to-DC voltage conversion circuits as the buck, boost and inverting...
Continue Reading50V – 5A DC Brush Motor Driver – High Performance, High Reliability
This is a powerful yet small-size and low-profile brushed DC motor drive system, with key features like adjustable constant current control, direction control, brake controls, Alert output, PWM for speed control, etc. The BD63150AFM chip is the heart of the project which is one...
Continue ReadingVariable Over-Current Detection Load Switch
This over-current latch load switch provides over-current protection, thermal shutdown protection, soft-start function, and low power OFF function. The Overcurrent protection function is activated when the load is shorted. This protection function is effective in preventing damage due...
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