High Voltage Divider Design

A voltage divider is a simple circuit which turns a large voltage into a smaller one.

High voltage divider design.

The formula for calculating the output voltage is based on ohms law and is shown below. Written by willy mcallister. A voltage divider is a simple series resistor circuit. The function of a high voltage divider is very simple.

Printable pdf version of datasheet. Planar high voltage dividers with proprietary non inductive design high precision low ratio tc low voltage coefficient high stability wide resistance and ratio range. Voltage dividers are one of the most fundamental circuits in electronics. To design the voltage divider the input impedance of the meter must be taken.

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. Hence it s advisable to measure the real resistance rp first and then design the divider using the presented procedure. Using just two series resistors and an input voltage we can create an output voltage that is a fraction of the input. It s output voltage is a fixed fraction of its input voltage.

Our patented micropen precision printing technology provides superior precision thick film radial through hole resistor dividers. 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. At the end match calculated values of rx and ry to a standard resistance series such as e24 5 tolerance or e96 1 tolerance. 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.

The scaling factor of this particular high voltage divider design is 1000 1. 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. The divide down ratio is determined by two resistors. High voltage radial leaded dividers hvd series high voltage radial leaded dividers hvd series contact ohmcraft.

Keep in mind that most potentiometers come with 10 or 20 tolerance. 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.