Voltage Divider Equation. The formula for calculating the output voltage is based on ohms law and is shown below. By using the following equation we can find the output voltage.
V s is the source voltage measured in volts v r 1 is the resistance of the 1st resistor measured in ohms ω. V out frac r b r a r b times v in v out. Deriving voltage divider.
V s is the source voltage measured in volts v r 1 is the resistance of the 1st resistor measured in ohms ω.
The output voltage of a voltage divider will vary according to the electric current it is supplying to its external electrical load. A voltage divider circuit will normally look like this in a circuit with a series of 2 resistors. Design a voltage divider to give the output voltage of 1 5 volts for designing an amplifier biasing. Given vo 1 5v vin 5v from eq iii or simplified formula look for 1st image of the post we have vo vin r2 r1 r2 assuming r1 1kω.
