DC or battery input, 6 were LED to string constant-current control

DC or battery input, 6 were LED to string constant-current control

Plan 2: DC or battery input, 6 were LED to string constant-current control

It USES more of the boost of structure design, LED the way before driving with a similar difference is that, by AC to DC input or by battery input (figure 2). Low voltage side of the design of the sensor as long as the choice of appropriate MOS tube, LED can string of quite a number of a number. Relative to AC input scheme, and its design are relatively simple. But because of a boost switch, the efficiency is lower.



The advantages of this scheme is simple in design, low cost, the disadvantage is circuit low efficiency. It is suitable for solar cells or through the adapter the lamps of the input.

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