High Voltage Divider Design

Hence it s advisable to measure the real resistance rp first and then design the divider using the presented procedure.

High voltage divider design. As you work with different types of circuits requiring a voltage divider the schematic to the right can help you develop different output voltages for this application. High voltage radial leaded dividers hvd series high voltage radial leaded dividers hvd series contact ohmcraft. The formula for calculating the output voltage is based on ohms law and is shown below. Voltage ratings to 55 kv power ratings to 4 5 watts.

At the end match calculated values of rx and ry to a standard resistance series such as e24 5 tolerance or e96 1 tolerance. Voltage dividers are one of the most fundamental circuits in electronics. Printable pdf version of datasheet. To design the voltage divider the input impedance of the meter must be taken.

Written by willy mcallister. It s output voltage is a fixed fraction of its input voltage. A voltage divider is a simple series resistor circuit. Keep in mind that most potentiometers come with 10 or 20 tolerance.

The scaling factor of this particular high voltage divider design is 1000 1. The divide down ratio is determined by two resistors. The equation vout vin r2 r2 r1 is the equation describing how the output voltage is related to the input voltage in this type of circuit. Special high voltage resistors are used in such probes as they must be able to tolerate high input voltages and to produce accurate results must have matched temperature coefficients and very low voltage coefficients.

A voltage divider circuit is a very common circuit that takes a higher voltage and converts it to a lower one by using a pair of resistors. However if there is ac riding on your high voltage it may mess up your readings if there is no compensation provided as it may act as a high pass filter. High voltage resistor divider probes designed specifically for this purpose can be used to measure voltages up to 100 kv. The function of a high voltage divider is very simple.

Using just two series resistors and an input voltage we can create an output voltage that is a fraction of the input. A voltage divider is a simple circuit which turns a large voltage into a smaller one.