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2. DOCUMENT FORMAT
• Abstract:
• Introduction:
• Literature Survey:
• System Analysis:
• Existing System:
• Disadvantages:
• Proposed System:
• Advantages:
• System Requirements:
• Block Diagram:
• Working Flow Diagram:
• Circuit Diagram:
• Implementation:
• Modules Description:
• System Study:
• System Testing:
• Software Description:
• Sample code:
• Conclusion:
• Future Enhancement:
• References:
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CELL: +91 99436 99916 / 99436 99926 / 99436 99936

3. ANALYSIS AND DESIGN OF SINGLE-SWITCH
FORWARD-FLYBACK TWO-CHANNEL LED DRIVER
WITH RESONANT-BLOCKING CAPACITOR
TITLE
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CELL: +91 99436 99916 / 99436 99926 / 99436 99936

4. ABSTRACT
In order to balance the light emitting diode (LED) current in each channel,
many active and passive methods have been investigated. Among the various methods,
the passive method using LLC converter with a blocking capacitor or flyback converter
with a current sharing transformer (CST) in the secondary side is one of the simplest
methods because it does not use any active component. However, LLC driver requires
two main switches and external resonant inductor to obtain wide-output-voltage range.
Also, flyback with a CST requires an additional magnetic component for CST and high-
voltage rated diodes, resulting in the limitation of the cost and system volume. In this
paper, a single-switch forward-flyback driver for two-channel LED is proposed. The most
powerful advantage of the proposed driver is the cost-effectiveness, since it eliminates
additional magnetic component. Furthermore, due to the reduced voltage stress on
rectifier diodes compared to the flyback driver, the proposed driver achieves a higher
efficiency. The prototype of 150-100V/0.3A two-channel LED verifies the effectiveness
of the proposed work.
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CELL: +91 99436 99916 / 99436 99926 / 99436 99936

5. CONTACT
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99436 99916
99436 99926
99436 99936
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CELL: +91 99436 99916 / 99436 99926 / 99436 99936

6. ADDRESS
#23A, 2nd Floor SKS Complex,
Bus Stand Opp. Karur-639 001.
OUR OFFICES @ CHENNAI / TRICHY / KARUR / ERODE / MADURAI / SALEM / COIMBATORE /BANGALORE / HYDRABAD
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7. Course
Embedded System,
PLC,
MATLAB,
Hardware & Networking.
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Hardware Projects
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CELL: +91 99436 99916 / 99436 99926 / 99436 99936