Archives: Projects
Indoor Air Quality Monitoring System
I'm quite passionate about air quality monitoring, so whenever I see an interesting air quality monitoring project that could help people stay healthy, while also serving as a good way to learn DIY electronics, I'm always eager to share. Thus, for today's tutorial, I will chronicle the...
Continue Reading12V SLA Lead Acid Battery Charger Using BQ24450
This project has been developed to charge SLA (Lead Acid Batteries) . It helps to charge 12V Lead-acid battery up to 12Ah in capacity. Specific current output is possible by altering the current sense resistor. The BQ24450 chip contains all the necessary circuitry to optimally...
Continue ReadingUSB (5V) to Dual Output +/-15V or +/-12V Step-Up DC-DC Converter
This USB to dual output step-up DC-DC converter has been designed to be used in industrial automation control equipment, sensors, isolated operational amplifiers and test & measurement equipment that require bipolar supply voltages. The module provides +/-15V or +/-12V DC load...
Continue Reading50V to 5V @7A Synchronous Buck (Step-down) Converter
This module is a non-isolated 7A DC-DC converter. The module can convert any DC voltage between 7V to 50V to a 5V DC with load current up to 7A. The project has been designed around LM5116 Wide Range Synchronous Buck Controller IC. The design includes 6uH toroid inductor and two N...
Continue Reading20A/40V Integrated Power Module for DC Brushless Motors (BLDC)
This project is based on STK984-090A which is a fully-integrated inverter with current rating 20A and supply voltage 40V DC. It has been designed to drive the Brushless DC Motors (BLDC) and permanent magnet synchronous motors (PMSM), the module works as output driver which include...
Continue ReadingSingle 18650 LiPo Battery to 5V Boost Converter
This small board is based on the CS5171 boost converter from ON Semiconductor. The board is configured to be used with a single 18650 LiPo battery. The circuit converts single-cell 3.7V LiPo battery voltage to 5V with a load current up to 400mA. Board has been designed to...
Continue ReadingIsolated Full-Duplex RS-485 Transceivers
This module is an isolated full-duplex differential line driver and receiver for TIA/EIA RS485/RS422 applications. The module is ideal for long transmission lines because the ground loop is broken to allow for a much larger common-mode voltage range. The symmetrical barrier of the...
Continue Reading90V to 10V @ 500mA High Voltage DC-DC buck converter
This is a versatile tiny module that provides 10V/500mA from 90V DC input. It is a high voltage input DC-DC buck converter, based on LM5017 IC, which is a 100-V, 600-mA synchronous step-down regulator with integrated high side and low side MOSFETs. The constant on-time (COT) control...
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