ACHR News

Using Schematic Diagrams to Troubleshoot HVAC/R Electrical Circuits

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 ...
IEEE

Overvoltage Suppression in Initial Charge Control for DC Capacitor Using Multiple Leg Short-Circuits With SiC-MOSFETs in Power Converters

Abstract: This article proposes an improved overvoltage suppression method for the initial charge of the dc capacitor in voltage source power converters. The proposed method makes multiple ...
IEEE

Electromagnetic Compatibility Characterization of Start-Capacitor Single-Phase Induction Motor

Abstract: The Single-Phase Induction Motor (SPIM) has gained widespread adoption in various power applications. This article introduces a new study and analysis of SPIM, focusing on its high-frequency ...
Variety

Oscar Predictions: Post-Shortlist Shake-Up as Studio Behemoths Rule and International Cinema Cracks the Door Wider

Oscars Commentary (Updated: Dec. 18, 2025): This week’s Oscar shortlist announcements have crystallized what many suspected: Warner Bros.’ “One Battle After Another” and “Sinners,” along with ...
Investopedia

Gantt Chart: Definition, Benefits, and How It’s Used

Mitchell Grant is a self-taught investor with over 5 years of experience as a financial trader. He is a financial content strategist and creative content editor. Khadija Khartit is a strategy, ...