Source Voltage Calculator
Calculate source voltage in DC and AC circuits using load voltage and voltage drop. Determine accurate source voltage for circuit design and analysis.
Source Voltage Calculator:
Source voltage is the voltage that must be applied to a circuit to maintain the desired voltage at the load, accounting for voltage drops across resistances or impedances. The Source Voltage Calculator uses Vsource = Vload + I × R to compute the required supply voltage for accurate and safe circuit operation.
Source Voltage Tools formula
The Source Voltage Calculator determines the required voltage of a power source to maintain proper load voltage in DC and AC circuits. Using the formula:
\[ V_{source}=V_{load} + I \times R \]
where Vsource is the source voltage, Vload is the voltage at the load, I is the current through the circuit, and R is the total series resistance (or impedance in AC circuits).
This tool is essential for electrical engineers, technicians, and students to design and analyze circuits, calculate voltage drops, and ensure proper operation of electrical devices. The calculator works for both DC and AC circuits, including resistive and reactive loads, providing accurate source voltage values for a given load and circuit conditions.
Work & Installation — Input to Output Summary
Work:
- Calculates source voltage for DC and AC circuits.
- Supports resistive and reactive loads.
- Useful for voltage drop analysis, load design, and circuit reliability.
Installation:
- Add HTML input fields for load voltage (V_load), current (I), and series resistance/impedance (R).
- Include JavaScript formula: V_source = V_load + I × R
- Display output in volts (V).
Input:
- Load Voltage (V_load, V)
- Current (I, A)
- Series Resistance / Impedance (R, Ω)
- Circuit Type: DC / AC
Output:
- Source Voltage (V_source, V)
Testing and Final Adjustments
Test with example circuits: DC load V_load = 12 V, I = 2 A, R = 0.5 Ω → V_source = 13 V. For AC, include resistive and reactive loads: V_load = 230 V, I = 10 A, R = 5 Ω → V_source = 280 V (considering impedance). Verify unit consistency, decimal precision, and rounding. Include input validation to prevent negative or zero values. Optimize for real-time calculation as values are entered. Test responsiveness across desktop and mobile devices. Optionally, include voltage drop percentage display. After verification, finalize layout, tooltips, and responsive design for engineering, educational, and professional use.
Frequently Asked Questions - Source Voltage Calculator:
What is source voltage?
Source voltage is the voltage applied to a circuit to maintain the desired load voltage.
How do you calculate source voltage?
V_source = V_load + I × R, where V_load is load voltage, I is current, and R is series resistance.
What units are used for source voltage?
Source voltage is measured in volts (V).
Can this calculator be used for DC circuits?
Yes, it calculates source voltage for DC circuits using load voltage and series resistance.
Can this calculator be used for AC circuits?
Yes, it can calculate AC source voltage including resistive and reactive loads.
Why is source voltage important?
It ensures the correct voltage at the load for proper operation of electrical devices.
What if the voltage drop is large?
The source voltage must be increased to compensate and maintain desired load voltage.
Can I include impedance instead of resistance?
Yes, for AC circuits, impedance can be used in place of resistance.
Is this calculator suitable for students?
Yes, it is ideal for learning voltage drop and source voltage calculations.
Can this be used for industrial applications?
Yes, it works for residential, commercial, and industrial circuits.
