One of the worst feelings as a homeowner with an HVAC system is when your central AC stops cooling. Take these steps to start troubleshooting the issue.

Air conditioners play a crucial role in keeping homes and offices comfortable, particularly during the sweltering summer months. However, like any complex appliance, they are prone to issues that can ...

Editor's Note: Here's another take on the transformerless AC line power supply, which finds use in some well-insulated, low-power devices. Our technical reviewer pointed out that C ac should be an ...

In an effort to meet worldwide efficiency requirements, engineersare designing offline power supplies integrating high-efficiencyswitching-regulator-control circuits. This approachuses less copper and ...