The interview started with an introduction, then moved on to the projects and internships. Everything was going well until I received the list of selected candidates. I'm still thinking about why I get rejected.

Half wave rectifiers allow one half of AC signal to pass, while full wave rectifiers allow both halves, improving efficiency. Half Wave Rectifier: Uses a single diode to convert AC to DC, allowing only one half of the waveform to pass. Example: Simple power supply circuits for low-power applications. Full Wave Rectifier: Uses two or more diodes to convert both halves of the AC waveform into DC. Example: Bridge rectifier circuit, commonly used in power supplies for higher efficiency. Half wave rectifiers produce more ripple voltage compared to full wave rectifiers. Full wave rectifiers provide smoother output voltage and better performance.