Controlling LEDs is really quite simple. As you know, they need to be current limited which is as easy as applying Ohm’s law to your given set of values. To make things even more even there’s ...

[Leo] solved both problems by using two of the three PWM channels on the chip in concert — one to control the current and one to PWM the LED. The circuit he came up with is deceptively simple ...

Fig. 1 Typical application circuit of FL7732 Constant current regulation is also an important feature for LED lighting. Precise constant-current control function in the FL7732 regulates accurate ...