甲類分立元件功率放大器電路圖15W

此功率放大器電路是使用雙20V電壓電源,提供15W的不失真功率在8歐姆負(fù)載的時(shí)候。Q1 經(jīng)營(yíng)在共同的放射器, 輸入信號(hào)通過對(duì)偏壓管子包括Q8, Q9 、D6 、D13 和D14 。Q8 和Q9 提供恒流偏壓, 產(chǎn)品階段減到最小由分離darlington 對(duì)(Q2,q4) 形成并且(Q7, q11) 。前二支晶體管是力量Transitors, 具體地2N3055 和MJ2955 。7.02K 電阻器, R16 被做了使用4.7K 、680 歐姆, 和二820 歐姆的系列組合。1.1K 電阻器, R3 被做了使用一100 歐姆和1K 電阻器。沒什么問題吧,好理解吧.

This amplifier uses a dual 20 Volt power supply and delivers 15 watts RMS into an 8 ohm load. Q1 operates in common emitter, the input signal being passed to the bias chain consisting of Q8, Q9, D6, D13 and D14. Q8 and Q9 provide a constant current through the bias chain to minimize distortion, the output stage formed by a discrete darlington pair (Q2,Q4) and (Q7,Q11). The last two transistors are power Transitors, specifically the 2N3055 and MJ2955. The 7.02K resistor, R16 was made using a series combination of a 4.7K, 680 Ohms, and two 820 Ohms. The 1.1K resistor, R3 was made using a 100 Ohms and a 1K resistor. You can use this circuit with any walkman or CD player since it is designed to take a standard 500mv RMS signal.are you understand.