Follow these essential AC cooling tips to keep your air conditioner running efficiently this summer. Learn the key checks technicians perform during air conditioner servicing, including filter ...

In this video, learn how to make your AC unit blow colder by cleaning the air conditioner coils, a simple maintenance task ...

Abstract: By using a single dc voltage source to feed a 4-level switched-capacitor (SC) unit and a 3-level NPP/NPC unit simultaneously, a new 9-level inverter is developed in this work. The 4-level ...

Abstract: Active capacitors with long lifetime film capacitors can be adopted to replace short lifetime electrolytic capacitors to improve the reliability of the power converter. However, the ...