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|1. (WO2018157539) LIGHT EMITTING DIODE CIRCUIT HAVING COLOR TEMPERATURE ADJUSTMENT FUNCTION|
|Applicants:||LEEDARSON LIGHTING CO.,LTD
|Title:||LIGHT EMITTING DIODE CIRCUIT HAVING COLOR TEMPERATURE ADJUSTMENT FUNCTION|
A light emitting diode circuit having color temperature adjustment capability. The light emitting diode circuit comprises a first LED lamp string (101), a resistor (501), and a second LED lamp string (102). The first LED lamp string has a first color temperature. The resistor is connected in series with the first LED lamp string. The second LED lamp string has a second color temperature. The first LED lamp string is connected in parallel with the second LED lamp string. The second color temperature is higher than the first color temperature. When the sum of current input to the first LED lamp string and the second LED lamp string is from low to high, the comprehensive color temperatures of the first LED lamp string and the second LED lamp string are increased. The light emitting diode circuit has a color temperature adjustment function, can also adjust color temperatures by means of parallel-series connection combination, and can also simulate the color temperatures of natural light, so as to satisfy requirements on light color changes of an illumination apparatus by people in life.