Well-known industry author and instructor Jim Johnson is offering a new video for technicians who want to sharpen their troubleshooting skills. "This HVAC training video program, is available in DVD ...

Shanghai-based chip firm MetaX Integrated Circuits has emerged as the latest star in mainland China’s stock market, with the graphics processing unit (GPU) maker proving to be even more popular among ...

Abstract: In this article, a novel electronic circuit based on optocoupler is designed for each module of photovoltaic (PV) array to deal with partial shading conditions. The proposed circuit not only ...

Abstract: Finding and replacing the defective insulated-gate bipolar transistor (IGBT) module timely by monitoring the ageing state of IGBT can improve the reliability of a power converter and reduce ...

So you want to control some mains electrical (or lower voltage) item using your phone, perhaps? This single ESP8266 plug-in controls a relay that is built in to the module. An Android app (.apk) ...

This PCB was planed for Sainsmart 4-Channel 5V Relay Module. It is alss possible to measure the current if ACS712 is connected to the prepared header. ACS Generic male header - 3 pins pin spacing ...