Voltage Divider Law (Resistive Circuit) - Voltage divider equations:
For a circuit with two Resistor R1 and R2 in series connected to a voltage source Vin:
Total Resistance (Rtotal):
For Example, R1 = 2 kΩ, R2 = 3 kΩ, or Vin = 10V
Voltage Across R1 (V1):
For Example, R1 = 2 kΩ, R2 = 3 kΩ, or Vin = 10V
Voltage Across R2 (V2) NO Load:
For Example, R1 = 2 kΩ, R2 = 3 kΩ, or Vin = 10V
Voltage Across R2 (V2) With Load:
For Example, R1 = 2 kΩ, R2 = 3 kΩ, RL = 4 kΩ, or Vin = 10V
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Resistor Divider Resistor to Resistor
Voltage dividers are very common and used very often in circuits. Many times in circuits, different levels of voltage must be allocated to different parts of a circuit. A voltage divider circuit, such as that shown above, can be used to do this. This can divide the input voltage that a circuit receives and allocate it accordingly and as needed to different parts of the circuit. For example, a circuit may receive 10V as input. However, one chip in the circuit may need 7 volts, while another chip in the circuit only needs 3 volts. We can allocate these voltages to the different chips by a voltage divider.
Resistor Divider conversion application
- Basic Resistor Divider: Input Voltage, Resistor R1, R2 Output voltage Vout
- Output Results: Display calculated Vout Resistor Load with real Power Output.
Where: