Structure of voltage transformer driving a plurality of tubes

Abstract

The invention provides a transformer structure to drive multiple lamps, including a transformer and many lamps. The transformer includes: an iron core group, a winding supporting, a one-time lateral winding and many group two-time lateral windings. The iron core group includes a first iron core and a second iron core. The winding supporting has a hollow region, and the hollow region is used to contain the first iron core and the second iron core, to form a closed magnetic circuit. The one-time lateral winding winds the coil on the winding supporting. Many group two-time lateral windings respectively winds the coil on the first iron core and the lateral side iron core of the second iron core, and the many two-time lateral windings respectively connects electrically to many lamps, which used to drive the many lamps, to make average luminance of the overall many lamps.

Description

technical field [0001] The invention provides a transformer structure for driving a plurality of lamps, in particular a transformer structure capable of driving a plurality of lamps and allowing current to flow through the plurality of lamps on average, so as to improve the overall average brightness of the plurality of lamps. Background technique [0002] Information products such as liquid crystal displays, scanners and copiers need to use lamps for lighting, such as cold cathode lamps or hot cathode lamps. With the advancement of technology, the brightness and brightness of the overall lamps will be improved. Uniformity becomes a trend. The current traditional dual lamp driving system can be divided into: (1) Referring to FIG. 1 , a DC power supply VIN is electrically connected to a driving circuit 11 , and the driving circuit 11 is electrically connected to the primary side coil terminals 1 and 2 of a transformer T1 . Then, the voltage is output through the secondary si...

AI Technical Summary

Problems solved by technology

Therefore, when the number of backlight tubes is more, the inverter (Inverter) needs more transformers, and the cost of the inverter is expensive.

If you do not use independent transformers to drive independent lamps, you need to add other components such as balance transformers, balance capacitors, and balance inductors to each independent lamp to balance the current flowing through the independent lamps. The same, and achieve the purpose of uniform brightness as a whole, and although this method can reduce the number of transformers required by the inverter, the increased current balance components will also cause the cost of the inverter to be expensive

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