占空比控制Buck型LED驱动器的比例积分

A discrete time-domain modeling and design for the duty-cycle-controlled buck light-emitting diode (LED) driver is presented in this paper. The discrete time-domain equation representing the buck LED driver is derived and linearized about the equilibrium state. Also the switching control law, the proportional-integral (PI) compensator is used here as an example of the error amplifier, is linearize...