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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...
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My 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. This is the First DC power supply in...
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Cheap 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 2amp. It suitable for general...
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0-70 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...
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Microprocessor dc regulator supply 5V 3A by LM323K
Those who want to have the power supply circuit for use in experiments such as logic circuit and/or the Microprocessor types that use voltage size 5 volt And the amount of current consumption very...
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Small uninterruptible power supply-UPS circuit
This small emergency backup battery systems circuit can be applied to many applications, when the power goes, the battery can provide backup power automatically. This power supply circuit system...
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Regulated 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...
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0-60 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...
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Variable 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...
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Variable 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 ArticleThe step down 12 volts to 6 volts DC converter
When we want to use the radio carrying a car that use power supply of 12 volts, but these radios require a voltage about 5 to 8 volts. Disruption of this cycle ends with the IC control voltage and 3...
View ArticleLM2575 Simple switcher 1A step down voltage regulator
The LM2575 is a simple step down dc regulated switching IC that can use to output current of 1A and voltage of 3.3V, 5V, 12V,15V ,and also an adjustable output. We love LM1575/LM2575/LM2575 National...
View ArticleStep up dc converter 1.2v to +5v/-5v for micro computer
Electrical appliances now applied the nickel cadmium/nickel metal hydride battery of 1.2 volts or alkaline battery only one. the electronic circuit also work…..How to works? Because a micro computer...
View ArticleDC switching power supplies
These are DC switching power supplies. To as ideas on build projects or tools. Because they have small size and cheaper than linear power supply. Our Website, begin there are slowly many circuits,...
View ArticlePortable power pack using LM1086 for mobile phones
This project is backup energy when need portable mobile phone that no electrical outlet. we use LM1086 is main on a low dropout voltage, making it has high-efficiency. When we need to take the mobile...
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 ArticleLow dropout 5v regulator using LM317
This circuit is Low dropout 5V regulator that use LM317 as main. The voltage input is 5.1V DC is converted into 5V output,while the maximum output current is 2A by TIP41 increase current. How it works...
View ArticleHow to use TL497 on 3 model switching power supply
How to use TL497 as the switched-mode power supply projects that output current of 500mA, and there are 3 model: step down,step-up and inverting voltage converters. Now, a switching power supply is...
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 Article5-volts DC regulator for portable MP3 player on motorbike
Motorbike repairman came to my house. Said, you know the story of how I like to build various electronics projects are always. And Talk to exchange knowledge with each other. During this time, he had...
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