# AC – DC Voltage Calculator, Formula, AC – DC Voltage Calculation

## AC – DC Voltage Calculator:

Enter the values of peak alternating voltage, Vac(V) to determine the value of AC – DC voltage, Vdc(V).

 Enter Peak Alternating Voltage: V Result – DC Voltage: V

## AC – DC Voltage Formula:

Alternating Current (AC) to Direct Current (DC) voltage conversion is a fundamental concept in electrical engineering, particularly when dealing with rectification processes.

This conversion is vital for applications that require DC voltage but have access only to AC sources, such as in electronic devices and power supply units.

The AC to DC conversion typically involves rectifying the AC voltage, a process that changes the alternating nature of the voltage to a unidirectional form.

The most basic form of this conversion uses a single-diode rectifier, which effectively converts the AC into DC by allowing only one half of the AC sine wave to pass through.

DC voltage, Vdc(V) in volts equals the product of peak alternating voltage, Vac(V) in volts and 0.636.

DC voltage, Vdc(V) = Vac(V) * 0.636

Vdc(V) = DC voltage in volts, V.

Vac(V) = peak alternating voltage in volt, V.

### AC – DC Voltage Calculation:

1. Calculate the average DC output voltage when the peak AC input voltage is 120 volts:

Given: Vac(V) = 120V.

DC voltage, Vdc(V) = Vac(V) * 0.636

Vdc(V) = 120 * 0.636

Vdc(V) = 76.32V.

1. Determine the peak AC input voltage needed to achieve an average DC output voltage of 50 volts:

Given: Vdc(V) = 50V.

DC voltage, Vdc(V) = Vac(V) * 0.636

Vac(V) = Vdc(V)­ / 0.636

Vac(V) = 50 * 0.636

Vac(V) = 78.62V.

### Applications and Considerations:

• Power Supplies: Essential for designing AC to DC converters in power supplies for electronic devices.
• Electrical Devices: Enables the use of AC mains supply to power devices that operate on DC voltage.
• Renewable Energy Systems: Important for integrating AC generated from renewable sources (like wind turbines) into DC-dominated systems (like battery storage).