High power led driver boost regulator circuit diagram

Published:2011/8/17 2:57:00 Author:Rebekka | Keyword: High power , led driver , boost regulator | From:SeekIC

When the input voltage of LED system applications is less than the minimum entire series string of forward voltage drop, you need a boost regulator. In the low-power applications, the switched capacitor boost converter is widely used. However, when the current is about 100mA or more, the efficiency will drop rapidly. Inductive boost regulators also need some output voltage to provide a higher part of the input voltage. Picture: High power led drive boost regulator circuit.It chooses an circuit that is used for driving an LED array typical step-up regulator. The reduction voltage circuit is shown in figure 3a and 3b. Previously it is allowed the dynamic movement in the output current while the output voltage regulation system. It has been converted to allow the dynamic movement in the output voltage andoutput current while maintaining the system at present.



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