| 摘要 |
This invention discloses a color temperature controller and a color temperature control method of a light emitting diode (LED). The color temperature controller applied in an LED lamp includes touch switches and a control element. After a color of a color pattern on any touch switch is clicked and selected by a user, a signal of the color is outputted to the control element, and the control element outputs a corresponding pulse width modulation (PWM) signal to control either the current or the voltage of a three-color LED in the LED lamp, so that the LED lamp produces a same color temperature change of the signal of the color to improve the color temperature control of a conventional LED lamp, and provides a flexible color change of the LED lamp. |
