Voltage divider

Resistor:

Resistor is the device that limits or regulates the flow of electrical current in the electronic circuit.

Voltage divider:

Voltage divider by the name itself it divides the voltage, but by the simple connection. We need only two resistors in series to divide the voltage.

Now we see how voltage can be divided by using series resistor

Formula:

Table 1

Now we see some examples,

Table 2

Applications:

Voltage divider is used in various applications like variable resistor, Trimpot, joystick, Softpot, Slidepot, Hot-pot potentiometer, resistive sensors like flex sensor, force sensitive sensor, LDR  and in circuit designs where voltage need to be divided and also in Microcontrollers for ADC conversions.

Example:

In real world scenario most sensors are resistive, now we look upon LDR and how to measure the resistance from it?

In microcontrollers it is easy to measure voltage but resistance not that much hence we can create voltage divider by known resistance in series with it.

LDR is the Light Dependent Resistor which changes its resistance based on the light incident on that.

• When there is no light, high resistance will be across the resistor.
• When there is light, Low resistance will be across the resistor.
• Based on the amount of light, resistance will be vary.

Table 3

For Product link:

1. http://www.tenettech.com/product/2783/resistor-kit-14w
2. http://www.tenettech.com/product/6792/power-resistor-kit-10w-25-pack
3. http://www.tenettech.com/product/1596/hotpot-rotary-potentiometer
4. http://www.tenettech.com/product/4521/potentiometer-kit
5. http://www.tenettech.com/product/7039/ldr

If you have any queries, please drop a mail to info@tenettech.com

For more information please visit: www.tenettech.com