+50V 3A 可调稳压电源(英文)

+50V 3A 可调稳压电源(英文),Regulated POWER supply

+50V 3A 可调稳压电源制作

  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. Conclusion: ideal output voltage is + 45V until + 60V. In the circuit pontesometer RV1, is used in order to we change the output voltage between + 40V until + 70V, we can however and perhaps it should, him we replace with two constant resistors, when finishe the regulation, in the desirable price. The reason is, that with time is presented change of output voltage, up to 3V, with connected pontesometer. ATTENTION!!! The positive exit correspond in point [ A ] and the exit of 0V in point [ B ], which should not be connected in the ground.

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

本网转载并注明自其它出处的作品，目的在于传递更多信息，并不代表本网赞同其观点或证实其内容的真实性，不承担此类作品侵权行为的直接责任及连带责任。其他媒体、网站或个人从本网转载时，必须保留本网注明的作品出处，并自负版权等法律责任。
如涉及作品内容、版权等问题，请在作品发表之日起一周内与本网联系，否则视为放弃相关权利。