The boundary between each grain and a neighbor forms a diode junction which allows.
Metal oxide varistor circuit diagram.
The metal oxide varistor or mov is a voltage dependent nonlinear device that provides excellent transient voltage suppression.
The resistance of the mov is very high.
A varistor voltage dependent resistor vdr is a component which has a voltage current characteristics that is very much similar to that of a diode.
This type contains a ceramic mass of zinc oxide grains in a matrix of other metal oxides such as small amounts of bismuth cobalt manganese oxides sandwiched between two metal plates which constitute the electrodes of the device.
Metal oxide varistor mov basics of varistor.
The metal oxide varistor or mov is a voltage dependent nonlinear device that provides excellent transient voltage suppression.
This component is used to protect electrical devices from high transient voltages.
The most common modern type of varistor is the metal oxide varistor mov.
First let us consider the component to have an open circuit as shown in figure 1 a.
The circuit we will build is shown below.
The metal oxide varistor is designed to protect various types of electronic devices and semiconductor elements from switching and induced lightning surges.
Working of metal oxide varistor mov working of metal oxide varistor mov the working of a mov is shown in the figure above.
The components needed to build this circuit are shown below.
The metal oxide varistor is designed to protect various types of electronic devices and semiconductor elements from switching and induced lightning surges.