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Led led products, will not cause the junction temperature of the clear differences in these parameters, [link widoczny dla zalogowanych] which also caused the same an led light, color, electrical parameter measurement results was inconsistent.
to control the output current control device, the output of each circuit to minimize the number of led strings (may be left in a string of led). the digital storage oscilloscope (div) ofa channel ch1 is connected to the current sampling resistor (sampling resistor r ≥ 0.5ω, no sense of resistance), [link widoczny dla zalogowanych] second channel ch2 led modules connected to the voltage sampling side (upper). oscilloscope ground connection in the voltage / current measurement of public terminals.
the product should be marked "rated output voltage", and should accordingly be marked "maximum output current" or "maximum output power." [link widoczny dla zalogowanych] control device should belong to such ac / dc conversion (including switching ac / dc conversion) of the power supply. it features in a certain range of load current, output voltage is almost no change. and when the supply voltage changes inthe lusm10% range, the output voltage is almost constant.