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Voltage Divider Calculator Resistor Values. Enter the value of voltage (in volts): Given the two values of the resistors and an input voltage, this page calculates the output voltage of the resistor divider.
Resistor Voltage Divider Calculator from espacecritiquepassionmusique.blogspot.com
Enter the value of current (in amps): It is often the first circuit a beginner learns. Click to reset the calculator.
Our Voltage Divider Calculator Works Based On Three Resistor Model As Mentioned In The Circuit.
Note that the ratio must always be less than 1. To adjust the output voltage of the resistor divider, a trimming or variable resistor is installed. Thus, the resistor values control the voltage allocation.
You Need To Keep In Mind Ohms Law, E=Ir And Power Dissipation By A Resistor Is V^2/R.
The calculator also plots the circuit diagram and generates the component values. How it works is, the ratio of the resistors (r1 and r2) divides the input voltage down to a lower output voltage. 5 rows the circuit above shows a voltage divider circuit involving a 2kω and a 1kω resistor.
Enter 3 Values To Get The 4Th Value:
U 2 = u ges rges ⋅r2 u 2 = u g e s r g e s · r 2. The user can select the input voltage, number of resistors (up to 5) and the units for the resistors. In this case, instead of the resistance of the active r, the reactance xc or xl appears in the calculations.
Use This Calculator To Find Voltage, Current, Or Resistance Using Ohm's Law.
So for the calculation of the partial voltage u 2 u 2 at r2 r 2 can be calculated: Here third resistance is an optional one. The ratio of the partial voltages corresponds to the ratio of the resistances.
Reference Voltage (Vr) Output Voltage (V) R1 (Kohm) Result:
You can make your calculations for r1 based on this. According to this formula, the resistor with the greater resistance value will drop more. The voltage divider is a series circuit of resistors that divide an electrical voltage.
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