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这个放大器使用双20V电压电源,提供15W的不失真功率在8欧姆负载的时候。Q1 经营在共同的放射器, 输入信号通过对偏压管子包括Q8, Q9 、D6 、D13 和D14 。Q8 和Q9 提供恒流偏压, 产品阶段减到最小由分离darlington 对(Q2,q4) 形成并且(Q7, q11) 。前二支晶体管是力量Transitors, 具体地2N3055 和MJ2955 。7.02K 电阻器, R16 被做了使用4.7K 、680 欧姆, 和二820 欧姆的系列组合。1.1K 电阻器, R3 被做了使用一100 欧姆和1K 电阻器。 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.
15W甲类分立管功率放大器电路 |
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