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电源套件有点不切实际啊，大功率变压器是个问题，还有自己要准备散热器，外壳等，如果不是自己有现成可以改装的主要零件，diy大功率电源不如直接购买成品，价格算下来和做差不多。小功率的电源diy还是很实在的。
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认同。。。。小功率的可调压恒流电源，带数字电压、电流指示的最好。
input voltage: ................ 24 vac
input current: ................ 3 a (max)
output voltage: ............. 0-30 v adjustable
output current: ............. 2 ma-3 a adjustable
output voltage ripple: . 0.01 % maximum
r1 = 2,2 kohm 1w
r2 = 82 ohm 1/4w
r3 = 220 ohm 1/4w
r4 = 4,7 kohm 1/4w
r5, r6, r13, r20, r21 = 10 kohm 1/4w
r7 = 0,47 ohm 5w
r8, r11 = 27 kohm 1/4w
r9, r19 = 2,2 kohm 1/4w
r10 = 270 kohm 1/4w
r12, r18 = 56kohm 1/4w
r14 = 1,5 kohm 1/4w
r15, r16 = 1 kohm 1/4w
r17 = 33 ohm 1/4w
r22 = 3,9 kohm 1/4w
rv1 = 100k trimmer
p1, p2 = 10kohm linear pontesiometer
c1 = 3300 uf/50v electrolytic
c2, c3 = 47uf/50v electrolytic
c4 = 100nf polyester
c5 = 200nf polyester
c6 = 100pf ceramic
c7 = 10uf/50v electrolytic
c8 = 330pf ceramic
c9 = 100pf ceramic
d1, d2, d3, d4 = 1n5402,3,4 diode 2a - rax gi837u
d5, d6 = 1n4148
d7, d8 = 5,6v zener
d9, d10 = 1n4148
d11 = 1n4001 diode 1a
q1 = bc548, npn transistor or bc547
q2 = 2n2219 npn transistor
q3 = bc557, pnp transistor or bc327
q4 = 2n3055 npn power transistor
u1, u2, u3 = tl081, operational amplifier
d12 = led diode
