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Posts Tagged ‘Stabilized Power Supply’

Power Supply +50V 3A stabilized and regulated By 2N3055

Many times we needed a stabilized, together regulated power supply and high relatively output voltage. These specifications him it cover our circuit. It ‘s a circuit that can give in his exit + 40V until + 60V 3A, with simultaneous stabilization. The materials that use is very simple and will not exist difficulties in the manufacture, is enough you are careful certain points. 1 ] For output voltages smaller of + 50V until + 40V, the Q1 is hot enough, so that it needs one big heatsink. 2]For output voltages bigger of + 50V up to + 70V, the stabilization is not satisfactory.

Part List

R1=10Kohm R8=1.8Kohm 0.5W Q3=BC303 or BC461
R2=1 ohm 5W R9=3.3Kohm 0.5W D1….4=Bridge 15A
R3=3.9 ohms 1W RV1=470 ohms pot. D5=LED RED 5mm
R4=6.8Kohm 1W C1-2-4=4700uF 100V D6-7=10V 1W Zener
R5=390 ohms 1W C3-5=100nF 250V MKT D8-9-10=1N4007
R6=100Kohm 0.5W Q1=2N3055 on heatsink T1=230Vac / 55V 3A
R7=1.2Kohm 1W Q2=BD162 or BD243 or BD543

Read More Source:http://users.otenet.gr/~athsam/power_supply_50V_3A.htm

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Mosfet stabilized power supply for Tube Amp

One very important Part of a Tube Amplifier is the Power Supply. It is crucial for the quality of the whole system. Especially beginners encounter problems like Hum or Drift that can become quite annoying. But resue is ahead: The following circuit uses a modern Mosfet to deliver a stable and virtually Hum-free voltage to power a large number of Tube (and others of course) Projects. I use this PSU for an OTL Headphone-Amplifier and two EL84 Power Amps.

With the provided PCB Layout it can quickly be built at very moderate cost. There is no need for heavy and expensive Chokes!

I tested the Sound against various conventional Designs (C-L-C, C-R-C), and i think the Sound Quality is even better!

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