A novel error amplifier with initial voltage reference for series voltage regulator 串聯(lián)穩(wěn)壓器基準誤差放大電路的設計
In order to design the parameter of error amplifier , the small signal model is derived for arc welding inverter using state - space averaging , and frequency - domain analysis is performed to complete the parameter design 為了設計控制系統(tǒng)中誤差放大器的參數(shù),利用狀態(tài)空間平均法建立了電源系統(tǒng)的低頻小信號數(shù)學模型,進而利用控制理論中的頻域分析法設計了系統(tǒng)的補償網(wǎng)絡,即誤差放大器的參數(shù)。
The whole circuit consists of a multiplier , an error amplifier , a comparator , a rs flip - flop , an and gate , and an inverter , etc . . the electronic circuit simulator cadence is utilized to practice the detailed functional simulation of the general circuit and the subsystem circuits 整個電路由模擬乘法器、誤差放大器、比較器、 rs觸發(fā)器、與門和倒相器等基本單元電路組成,采用工作站上的大型ic設計軟件cadence進行仿真。
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計和仿真的邏輯功能做了解釋。
Some sub - block circuits ( error amplifier , soft - start , enable comparator and under - voltage protection circuit ) are designed and several electrical characteristics are simulated using hspice . finally , the whole chip performance is simulated . and the results show the satisfaction to both function targets and characteristics 在子電路設計中,本論文只對其中的誤差放大器、軟啟動電路、使能比較器和欠壓保護四個子電路進行了電路原理分析與設計,并在此基礎上,運用eda軟件hspice對各功能模塊的各項指標、參數(shù)進行了仿真、分析。