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Posts Tagged ‘Variable-DC-Power-Supply’

Variable voltage 0-25V 10A Switching Regulator by L4970

When friends want Variable power supply Switching Regulator Circuit. I thinks this circuit may like friends certainly. It can Adjustable from 0V to 25V at current 10A. By have the prominent point again be the small-sized. Because of use integrated readymade circuit. Decrease the heat has of plentiful follow circuit picture. It uses , IC – L4970 , by use , VR-10K , fine decorate voltage follow want. The LED for show the circuit. A friend should use transformer 10A sizes and are high class ,volt 28VAC and 8VAC with. The capacitors should durable voltage about 50V. Other hardware a friend pleases to see in the circuit yes.

DC Supply adjustable Voltage 0-20V at 1A

Today a friend comes to see at a house lead electronics old equipment come to amount of. He consults me that what is set equipment should build electronics project ? good. I then advise that try build DC Supply adjustable Voltage Circuit. all right by can fine voltage get , 0-20V at 1A max . Convenient for the circuit experiences general at want tall quality little because be model Regulated with. My friend will think to apply with Pre tone Amplifier Circuit, at use the transistor also. By you can use the transistor can replace many the number such as number TIP41 or TIP31 , or H1061 or C1061 or MJE3055. Fining decorates VR1 -5K make Voltage output modify from 0V to 20V. Besides should use a pot transforms the sky 2A sizes. Will have then current output 1A min. The detail is other see in the circuit sir.

Power Supply Adjustable 0-30V 2A by UA723+2N3055

It is a simple circuit regulated power supply, based on the known UA723, that drive a transistor Q1 [2N3055]. The regulation of voltage, of expense becomes with potentiometer R1 from 0v-30v DC roughly. In order to we achieve 30 V, will should the transformer of supply TR1, it gives all the current that it asks the load, differently the output voltage it will be found in the levels of 26 V roughly. Essential is the use of a good heatsink for transistor Q1, as well as good quality of potentiometer in the place of R1.

Source: http://users.otenet.gr/~athsam/power_supply_30.htm

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