In meantime , the all sub - circuits are also designed and emulated carefully including error amplifier , voltage reference circuit , voltage comparator , rs type flip - flop , soft - start circuit , sawtooth - wave generator , pwm comparator , current added circuit and so on 其次對控制器內部芯片的各個模塊誤差放大電器、自舉電流電路、電壓基準源、電流求和電路、 rs觸發器和驅動電路等模塊進行了具體的設計和仿真的邏輯功能做了解釋。