High Voltage Divider

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

High voltage divider. Ohm labs manufactures precision resistive high voltage dividers. 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. Their 1000 1 and 10 000 1 ratios respectively extend the measurement capability of most digital voltmeters and oscilloscopes to 150 000 v or 300 000 v. High voltage resistor divider probes designed specifically for this purpose can be used to measure voltages up to 100 kv.

High voltage resistances of 50 ohms or less and as high as 1000 megohms or more per kv are available. The dvr series offers a 150 kv and a 300 kv ac dc model designed with precision resistor capacitor networks that provide low voltage outputs proportional to the applied high voltage input. A voltage divider is a simple series resistor circuit. Written by willy mcallister.

Voltage dividers are one of the most fundamental circuits in electronics. The formula for calculating the output voltage is based on ohms law and is shown below. High voltage dividers can also be used as simple high accuracy meter multipliers. It s output voltage is a fixed fraction of its input voltage.

The high voltage is applied across the divider and the divider output which outputs a lower voltage that is within the meter s input range is measured by the meter. The divide down ratio is determined by two resistors. High voltage resistances are usually 2 megohms or 4 megohms per kv to minimize heating and voltage coefficients consistent with compact sizes. All ohm labs high voltage dividers include iso17025 accredited calibration.