Figure 10 DAC through a consistent

  Figure 10 DAC through a consistent change in the LED forward current to control the LED dimming. MR16

    Do not move the color coordinates dimming called pulse-width modulation. It can be enabled by the vast majority of available power or shutdown control devices to achieve. For example, by pulling EN low disables the device work, MAX1916 can be leakage current flowing through the  T8 Tube LED is limited to 1μA, zero light emission. Pulling EN can manage controllable LED forward current. If the EN pin is a pulse-width modulated signals, the brightness is proportional to the duty cycle of the signal.

LED Flexi

    Because each LED forward current flowing through sustained consistent, and thus color coordinates does not shift. However, the eye will feel the duty to change brought about changes in light intensity. More than the human eye can not distinguish between the frequency of 25Hz, so 200-300Hz switching frequency PWM dimming is a good choice. Higher frequencies can cause problems, switch to switch LED color within a short time interval