Rosen type piezoelectric transformer with multiple output electrodes

A piezoelectric transformer with multiple outputs and a stabilizer having the piezoelectric transformer with multiple output electrodes is disclosed. The piezoelectric transformer with multiple outputs lights a plurality of cold cathode fluorescent lamps at the same time by forming a plurality of output electrodes as one body. The piezoelectric transformer includes a piezoelectric plate; an input electrode formed on an upper surface of the plate; a plurality of output electrodes having an identical band shape, arranged in equal distance in the longitudinal direction of the plate at an outer side of the input electrode, and connected electrically to one ends of the plurality of the cold cathode fluorescent lamps respectively; and a common electrode formed on a bottom surface of the plate, confronting to the input electrode, commonly connected to ground of the stabilizer and other ends of the plurality of the cold cathode fluorescent lamps.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

FIG. 1 shows a perspective view of a stabilizer for a plurality of lamps having a Rosen type piezoelectric transformer in accordance with the primary embodiment of the present invention;

FIG. 2 shows a perspective view of the piezoelectric transformer in accordance with the present invention in FIG. 1;

FIG. 3 shows a perspective view of a Rosen type piezoelectric transformer in accordance with another embodiment of the present invention and a stabilizer for lighting four lamps;

FIG. 4 shows a perspective view of the modified piezoelectric transformer as shown in FIG. 3;

FIG. 5 shows a perspective view of a Rosen type piezoelectric transformer in accordance with another embodiment of the present invention and a stabilizer for a plurality of lamps applying that;

FIG. 6 shows a perspective view of the modified piezoelectric transformer as shown in FIG. 5;

FIG. 7 shows a block diagram of a conventional fluorescent lamp stabilizer;

FIG. 8 shows a perspective view of a stabilizer for a plurality of lamps applying a conventional winding type transformer; and

FIG. 9 shows a perspective view of a stabilizer for a plurality of lamps applying a conventional piezoelectric transformer.

1. A Rosen type piezoelectric transformer being used for a stabilizer to light a plurality of cold cathode fluorescent lamps, comprising:

2. A Rosen type piezoelectric transformer being used for a stabilizer to light a plurality of cold cathode fluorescent lamps, comprising:

3. A Rosen type piezoelectric transformer being used for a stabilizer to light a plurality of cold cathode fluorescent lamps, comprising:

4. A Rosen type piezoelectric transformer being used for a stabilizer to light a plurality of cold cathode fluorescent lamps, comprising: