In this video, we talk about the phases of the conversion of AC to DC and how the AC conversion to DC is basically done by the chargers or power supplies we use in daily life.
Stages of conversion of AC to DC; First, the transformer consists of dropping, then straightening, filtering and finally regulation. In this video, the conversion process was mainly based on the example of converting 220V AC to 5V DC.
After decreasing the voltage value, we need to do the straightening process to get rid of the negative alternatives of AC. This rectification process is carried out with a Full Wave Rectifier circuit, where four diodes are used. At the output of the rectification circuit, the negative alternates of the AC voltage are also positively transformed into a non-uniform DC current.
The next step is filtering. The capacitor is also used in the filtering circuit. The capacitor serves to store the voltage for a short time when used with DC. By taking advantage of this charging and discharging feature of the capacitor, the voltage at the output of the rectifier circuit, while the capacitor is charged up to the peak of the graph, prevents the voltage from being zero at the discharge from the peak to the zero. Thus, the zero points are eliminated and the voltage is transformed into this shape.
The process after that is the regulation process. If you want to get a few Volt DC outputs in the control circuit, a voltage regulator is selected.
For example, if we want the output voltage to be 12V DC, we need to use the 7812 regulator. Of course, the transformer used before the selection should be made accordingly. Use a transformer with a higher conversion rate so that 12V can be obtained. This is basically the way to convert AC to DC, friends.
24 окт 2019
