Precautions for the use of piezoelectric transformers
1) The operating frequency of the circuit must be consistent with the piezoelectric resonant frequency, and the efficiency will be the highest (refer to the specification of the piezoelectric transformer). The tolerance of the resonant frequency can also be used as one of the control methods for the output voltage.
2) The minimum input voltage (Vp-p24~110) and the minimum value of 24Vp-p are also required under the condition of satisfying the frequency. The level of the input voltage can also be used as a control method for the level of the output voltage.
3) The best waveform output by the circuit is a sine wave, followed by a triangular wave with a cut top. It is strictly forbidden to use a rectangular square wave input, otherwise the piezoelectric sheet will be easily damaged.
4) Piezoelectric transformers cannot be reflow soldered, only manual post-soldering, nor potting glue, because piezoelectric sheets rely on mechanical vibration to generate electricity, after potting glue will limit its vibration, resulting in no high-voltage output or low output voltage . The shell of the piezoelectric itself has the function of protection and fixation, and it is strictly forbidden to fill the shell with other foreign objects.
Your message must be between 20-3,000 characters!