Clik here to view.
Regulator 0-30V 1A By Transistor (C1061)
This is simple dc voltage Variable regulator Circuit. I use the transistor 2SC1061 or H1061. It used for control current up to 1 Amp. The circuit use transistor 3 pcs only, it very small circuit. The...
View ArticleClik here to view.
power supply regulator switching 0-50V 5A by TL494 , MJ15004
This is circuit power supply switching regulator, variable regulator Adjustable voltage output 0-50V and current 5A. It is use IC TL494 IC 741 and NE555 ,Transistor MJ15004 boost up current to 5Amax....
View ArticleClik here to view.
1-20V 10A adjustable dc power supply by LM338
1.2V-20V 10A adjustable dc power supply by LM338 A friend of me side radio amateur office. He wants Variable Regulate Power Supply high current about 10A go up. I then advise this circuit , because...
View ArticleClik here to view.
DC Power Supply 9 volt using TIP31 transistor
Today I receives electricity old printer from a friend. I think it can’t is usable , but power supply circuit still can be usable , modify be power supply source in electronics all work. I then build...
View ArticleClik here to view.
Best DC power supply 3Amp to adjust 1.2V-20V & 3V-6V-9V-12V
This is the high quality power supply to provide high current 3A. And still adjust voltage in steps from 3V, 6V, 9V, 12V. adjust voltage is continuous 1.25V to 20V. Using LM317T and 2N3055 are main...
View ArticleLM350 Regulator 3-Amp Adjustable
With the component values shown the circuit is designed to have and output voltage range of approximately 1.25 to 13.5 Volts when measured at the output of the regulator. The calculation on the drawing...
View ArticleAdjustable dc voltage regulator circuit using ic-7805
I used to introduce many projects that use a IC-7805 or 78xx types, Today, it will modify from old circuit, IC-78xx series has many numbers. We can choose the desired voltage. such as “12V” should use...
View Article0-70 Volt 2 Amp DC variable power supply
When you want to adjust the dc power supply circuit voltage up to about 70V. But the “Cheap adjustable 0-30V 2A Laboratory DC Power Supply” project can fine maximum voltage is 30 volt only. We need to...
View ArticleRegulated DC power supply variable output 0-60V 1A
This 0-60V variable voltage regulator power supply circuit is designed to supply the output voltage to zero volt, without a transformer with a secondary winding two coils. We can use the well-known IC...
View Article0-60 volt DC variable power supply using LM317&LM337
If you want a power supply that covers most applications. This circuit may be what you’re looking for. The price you deny difficult. With the following features. 1. On signal mode can supply DC voltage...
View ArticleVariable zener diode circuit
I used to design and calculate the value of the equipment. By false starts. Frequently have all the equipment. Except that the Zener diode can not find what you need. I tried using this way. This...
View ArticleVariable switch mode power supply 0-50V 5Aby TL494 MJ15004
Today I suggest examples as the variable voltage power supply circuit that can adjust output from 0-50volts at 5A. Which many people interested it a lot. Because is a switch mode type that is...
View ArticleLM317 voltage regulators
In the event of we need to build a variable DC power supply that output of 1A and can adjust up to about 30V. Most people will use LM317 because high-efficiency, easy to apply and cheaper Description...
View ArticleMy first Variable DC Power Supply 1.2V to 30V 1A by LM317
If you are beginner in electronics and you want to have a great power supply. This project is design for you. It can supply voltage 1.2V to 30V at all range is 1A. New update Please read below this...
View Article1.2V-25V at 3Amp Adjustable Regulators using LM350T
This is a 3A adjustable regulators using IC-LM350T that look like In My first Variable DC Power Supply, but this high current higher than 3-Amp. Therefore they cause you can supply more any load...
View ArticleClik here to view.
0-50V 3A Variable DC power supply
This regulator is circuit that adjust output voltage wide rage between 0-50V, and Also important is the overcurrent protection circuit at 3 Ampere. Which will immediately cut. The voltage regulation...
View ArticleAdjustment DC power supply 1.25-15V Max current 0.5 amp
This is power supply that have Voltage output fine the value has 1.25-15V. From by Output current that be valuable about 0.5 amp that 12V and 0.2 amp that 15V. When Volt , from 220V houses reach...
View ArticleSimple variable dc power supply 0-30V 2A for beginners
If you are beginners who want to use the simple variable DC power supply 0-30V 2A. This circuit is best for you. Because it has a few parts,small,and cheapest than others circuit that same power. The...
View Article0-30V,0-2A adjustable voltage and current regulator
This is the 0-30V,0-2A adjustable voltage and current regulator that developed from the cheap adjustable 0-30V 2A Laboratory DC Power Supply project using LM723 is used widely, for a long time. This...
View ArticleCheap adjustable 0-30V 2A Laboratory DC Power Supply
This 0-30V power supply is the variable voltage Regulator at 2A max, by used IC-723 for control volt stable regulated. The 2N3055 power transistor for boost up current to 2 Amp. It suitable for general...
View Article