The divide down ratio is determined by two resistors.
High voltage divider design.
To design the voltage divider the input impedance of the meter must be taken.
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.
High voltage resistor divider probes designed specifically for this purpose can be used to measure voltages up to 100 kv.
A voltage divider is a simple circuit which turns a large voltage into a smaller one.
It s output voltage is a fixed fraction of its input voltage.
The scaling factor of this particular high voltage divider design is 1000 1.
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Keep in mind that most potentiometers come with 10 or 20 tolerance.
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.
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.
Written by willy mcallister.
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Printable pdf version of datasheet.
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.
Voltage ratings to 55 kv power ratings to 4 5 watts.
The formula for calculating the output voltage is based on ohms law and is shown below.
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.
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.
The function of a high voltage divider is very simple.
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.
