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(nèi)部芯片的各個模塊誤差放大電器、自舉電流電路、電壓基準(zhǔn)源、電流求和電路、 rs觸發(fā)器和驅(qū)動電路等模塊進行了具體的設(shè)計和仿真的邏輯功能做了解釋。