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AN2640 Datasheet(PDF) 33 Page - STMicroelectronics

Part # AN2640
Description  Intelligent multipower digital ballast for fluorescent lamps
PDF  36 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2640 Datasheet(HTML) 33 Page - STMicroelectronics

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AN2640
Conclusion
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Figure 34.
54 W
Figure 35.
80 W
7
Conclusion
The proposed microcontrolled multipower ballast has several advantages. Design and
production cost are reduced as there is no need for different circuits to drive different lamps.
Moreover, by using the microcontroller, the systems' present flexibility from a design point of
view respects that of an analog circuit. With the use of STMicroelectronics' Power MOSFET
and diodes, the circuit shows good overall efficiency results.



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