AC to DC Conversion Formula:
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AC to DC conversion is the process of converting alternating current (AC) voltage to direct current (DC) voltage, typically using a rectifier circuit. This is fundamental in power supply design for electronic devices.
The calculator uses the rectification formula:
Where:
Explanation: The equation accounts for the peak voltage conversion from RMS and subtracts typical voltage drops in the rectification process.
Details: Most electronic devices require DC power, while mains electricity is AC. Accurate conversion calculations are essential for proper power supply design and device operation.
Tips: Enter the AC voltage in volts (RMS value) and any expected voltage drops. The default drop of 0.7V accounts for a typical silicon diode forward voltage.
Q1: Why multiply by √2?
A: √2 converts RMS voltage to peak voltage, which is what the rectifier processes.
Q2: What are typical voltage drops?
A: Silicon diodes drop about 0.7V each. A full-wave bridge rectifier would have two diode drops (1.4V total).
Q3: Is this calculation for half-wave or full-wave rectification?
A: This applies to full-wave rectification. For half-wave, the result would be different.
Q4: Does this account for capacitor filtering?
A: No, this gives the peak DC voltage before any filtering. Actual DC voltage may be higher with good filtering.
Q5: How accurate is this calculation?
A: It provides a theoretical maximum. Real-world results vary based on load, transformer regulation, and other factors.