Piezo Inverter

12th May 2010
Posted By : ES Admin
Piezo Inverter
To meet the requirements from the market, TFT manufactures have the target to extend the operating temperature range to the TFT´s as much a possible. Latest TFT products have a operating temperature range of –30 … +85°C.
The piezoelectric transformer has primary and secondary electrodes on the piezoelectric ceramics. The primary electrode is polarized in the thickness direction and the secondary electrode is polarized in the length direction. When a voltage with the resonance frequency is applied on the primary side, a strong mechanical vibration is generated by inverse piezoelectric effect of the ceramics, and a high voltage output from the secondary side, matching its vibration by direct piezoelectric effect.

Compared with traditional electromagnetic inverters, the Piezo inverters have some significant advantages. Due to the lack of high frequencies the Piezo inverters are not influenced by EMI nor do they have EMI emission. They have an extreme operating temperature range of -30°…+80°C, a high efficiency of 90%, and they are producing less heat. A long lamp life time and a high reliability is guaranteed. A further advantage giving more flexibility for the mechanical design is the ultra flat mechanical dimensions. Piezo inverters are UL-approved.

You must be logged in to comment

Write a comment

No comments




Sign up to view our publications

Sign up

Sign up to view our downloads

Sign up

Mobile World Congress 2017
27th February 2017
Spain Fira Gran Via and Fira Montjuïc
Wearable Technology Show 2017
7th March 2017
United Kingdom ExCel, London
embedded world 2017
14th March 2017
Germany Nürnberg Messe
electronica China 2017
14th March 2017
China Shanghai New International Expo Centre
Southern Manufacturing
21st March 2017
United Kingdom FIVE, Farnborough