The working principle of piezoelectric ceramic transformer
The working principle of piezoelectric ceramic transformer It uses the characteristics of piezoelectric ceramic materials-the positive piezoelectric effect and the inverse piezoelectric effect. The so-called positive piezoelectric effect is that this material generates charge or voltage under the action (or deformation) of a force, while the inverse piezoelectric effect is that the material deforms or vibrates when a voltage is applied. The working principle of piezoelectric ceramic transformer is to use the positive and inverse piezoelectric effect characteristics of the piezoelectric ceramic material. By designing the electrode and polarization orientation characteristics of the piezoelectric ceramic body, the inverse piezoelectric effect is used to make the The connected piezoelectric ceramic body generates mechanical vibration under the action of voltage, and then the piezoelectric ceramic body connected to the output terminal generates voltage through the positive piezoelectric effect. When the impedances of the input terminal and the output terminal are not equal, the voltage and current at both ends are also not equal, thereby realizing the function of voltage and current conversion between the input terminal and the output terminal.
