Abstract: The present invention discloses a piezoelectric cascade resonant lamp-ignition circuit, which uses the intrinsic capacitors of a piezoelectric transformer as piezoelectric capacitors. One lamp is cascaded to one set of the piezoelectric capacitors. Several sets of the piezoelectric capacitors and a resonant inductor are cascaded to form a resonant lamp-ignition circuit. The lamp-ignition circuit of the present invention has advantages of low temperature, small leakage current, high breakdown voltage and high lamp ignition efficiency. When applied to drive several lamps, the present invention uses a fixed frequency to attain a fixed inner impedance of the equivalent circuit of the piezoelectric capacitor. Thereby, the currents of the lamps are balanced to have an identical value.

Abstract: The present invention discloses a high-voltage lamp-ignition piezoelectric oscillator, wherein a piezoelectric capacitor is connected to an LC resonance circuit in parallel to transform power. The LC resonance circuit is used to generate resonance. Voltage is applied to the piezoelectric capacitor to deform the piezoelectric material due to the inverse-piezoelectric effect and then generate electricity after deformation due to the piezoelectric effect. The combination of piezoelectric and inverse-piezoelectric effects generates additional charge and boosts the voltage. Thereby, the present invention decreases power consumption and reduces cost.

Abstract: The present invention discloses an insulation piezoelectric transformer, wherein upper electrodes and corresponding lower electrodes are respectively formed on the upper surface and lower surface of a ceramic substrate to form the primary side and the secondary side. A high DC voltage is applied to the primary side and the secondary side to polarize the ceramic material in between the upper and lower electrodes. The unpolarized portion of substrate still keeps the properties of a ceramic material and functions as an insulator of the primary and secondary sides. Therefore, the present invention functions as an insulation piezoelectric transformer.

Abstract: The present invention discloses a high-voltage lamp-ignition piezoelectric oscillator, wherein a piezoelectric capacitor is connected to an LC resonance circuit in parallel to transform power. The LC resonance circuit is used to generate resonance. Voltage is applied to the piezoelectric capacitor to deform the piezoelectric material due to the inverse-piezoelectric effect and then generate electricity after deformation due to the piezoelectric effect. The combination of piezoelectric and inverse-piezoelectric effects generates additional charge and boosts the voltage. Thereby, the present invention decreases power consumption and reduces cost.

Abstract: The present invention discloses a piezoelectric cascade resonant lamp-ignition circuit, which uses the intrinsic capacitors of a piezoelectric transformer as piezoelectric capacitors. One lamp is cascaded to one set of the piezoelectric capacitors. Several sets of the piezoelectric capacitors and a resonant inductor are cascaded to form a resonant lamp-ignition circuit. The lamp-ignition circuit of the present invention has advantages of low temperature, small leakage current, high breakdown voltage and high lamp ignition efficiency. When applied to drive several lamps, the present invention uses a fixed frequency to attain a fixed inner impedance of the equivalent circuit of the piezoelectric capacitor. Thereby, the currents of the lamps are balanced to have an identical value.