2W 3W 4W 6W Piezoelectric Ceramic Transformer AP-313TP AS-B523T A243T A163T
TAMURA Piezoelectric Ceramic Transformer 2W 3W 4W 6W AP-313TP AS-B523T A243T A163T
General Of The TAMURA Piezoelectric Ceramic Transformer
Piezoelectric transformer (SOLIDFORMER®) can generate a high voltage by a low voltage input through the utilization of a resonance phenomenon of the piezoelectric transducer. The applications include high voltage power supplies,such as inverters for liquid crystal display back-lighting, dust collectors, copy machines, facsimile machines, ionaizer, and ozonizers.
Principle Of The TAMURA Piezoelectric Ceramic Transformer
The piezoelectric transformer has primary and secondary electrodes on the piezoelectric ceramic. The primary side is polarized in the thickness direction and the secondary side in the length direction. (Arrow mark shows polarization direction). When a voltage having a resonance frequency (Fr), determined by the length dimension, is input on the primary side, a strong mechanical oscillation is generated by inverse piezoelectric effect, and a high voltage (Vo) is output from the secondary side, matching its oscillation by direct piezoelectric effect.
Piezoelectric Transformers Specifications Of The TAMURA Piezoelectric Ceramic Transformer
| Item | Model No | ||||
| AP-313TP | AS-313T | AS-B523T | AS-A243T | AS-A163T | |
|
Max rated power P0 (W) |
2.0 | 2.0 | 3.0 | 4.0 | 6.0 |
|
Max rated voltage V0 (Vrms) |
1000 | 1100 | 1500 | 1800 | 2300 |
| Ta (℃ ) | –10 ～ 85 | ||||
| Weight(g) | 1.5 | 1.0 | 2.0 | 2.5 | 7.5 |
Reliability Evaluation for Piezoelectric Transformer Of The TAMURA Piezoelectric Ceramic Transformer
| Test Items | Test Conditions | |
| Dynamic characteristics | 60℃,Rated output | above 20,000h |
| High temperature, high humidity test | 60℃,95%RH,Rated output | above 10,000h |
| Thermal shock | － 25℃(30min)←→ 85℃(30min) | above 1,000 cycle |
| Oscillation |
Frequency 10 ～ 55Hz Amplitude 1.5mm Sweepage 4.6min |
100 cycle |
| Shock | 80G,11ms,Signature wave | 10 cycle |
Features Of The TAMURA Piezoelectric Ceramic Transformer
• High efficiency (above 95%).
• Inflammability.
• Thin thickness.
• No flux leakage.
• High reliability.
• Self control function of output current.
• Low harmonic current noise.
Cautions
▶The unit may be damaged if a load is open when it starts driving.
▶Characteristics will deteriorate when the unit is driven over the maximum rated.
Equivalent circuit (resonance frequency and proximity) Of The TAMURA Piezoelectric Ceramic Transformer
Characteristics Of The TAMURA Piezoelectric Ceramic Transformer
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