High Voltage Divider Design

Voltage ratings to 55 kv power ratings to 4 5 watts.

High voltage divider design.

A voltage divider is a simple series resistor circuit. Our patented micropen precision printing technology provides superior precision thick film radial through hole resistor dividers. Voltage dividers are one of the most fundamental circuits in electronics. Connect a high voltage signal at the input and read a corresponding scaled version of the input voltage at the output of the divider which can safely be measured via a multimeter or an oscilloscope.

Written by willy mcallister. High voltage resistor divider probes designed specifically for this purpose can be used to measure voltages up to 100 kv. Printable pdf version of datasheet. At the end match calculated values of rx and ry to a standard resistance series such as e24 5 tolerance or e96 1 tolerance.

To design the voltage divider the input impedance of the meter must be taken. The formula for calculating the output voltage is based on ohms law and is shown below. The scaling factor of this particular high voltage divider design is 1000 1. 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.

A voltage divider is a simple circuit which turns a large voltage into a smaller one. Planar high voltage dividers with proprietary non inductive design high precision low ratio tc low voltage coefficient high stability wide resistance and ratio range. 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 circuit is a very common circuit that takes a higher voltage and converts it to a lower one by using a pair of resistors.

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. Keep in mind that most potentiometers come with 10 or 20 tolerance. Hence it s advisable to measure the real resistance rp first and then design the divider using the presented procedure. High voltage radial leaded dividers hvd series high voltage radial leaded dividers hvd series contact ohmcraft.

The divide down ratio is determined by two resistors. The function of a high voltage divider is very simple.