How to build your own air quality meter with a Raspberry Pi and CO2 sensor

In winter, it’s important to ventilate living and working spaces regularly. Here’s how to make a homemade measuring station ...
IEEE

A Novel Simultaneous Diagnosis Method for IGBT Open-Circuit Faults and Current Sensor Faults of Three-Phase SPWM Inverter

Abstract: This article presents a novel fault diagnosis method for open-circuit faults of insulated gate bipolar transistors (IGBTs) and current sensor faults in three-phase sinusoidal pulsewidth ...
IEEE

Reduced-Sensor-Based Optimal Switching Sequence Model Predictive Current Control for Grid-Tied Inverter With LCL Filter

Abstract: This article presents an improved reduced-sensor-based optimal switching sequence model predictive current control (OSS-MPCC) algorithm for a grid-tied inverter with the LCL filter with only ...
MotorBiscuit

7 Most Common Reasons Your Car’s Heat Stopped Working, Plus Fixes and Cost Estimates

You get into your car, turn the knob, brace for warmth, and get…refrigerated air. Augh. Before you assume the worst, though, take a breath. Most heater failures fall into a short, familiar list for ...