I am not saying that I want to design it. I mean please help me in the above circuit to connect IR receiver to it.It looks to me like the BP5926 is a dual channel brightness controller which is controlled by a single PWM signal. I have tried to find a datasheet on the BP5926 but failed to do so. I can't think of a way that a single PWM signal can control 2 channels. I would think finding that information is the first step in the design process.
Although you say you want to design it it sounds more like you want someone else to design it but you then want to build the design. Am I correct ?
Les.