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Best DC power supply 3Amp to adjust 1.2V-20V & 3V-6V-9V-12V

September 11, 2012, 10:08 pm
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best-dc-power-supply-3amp-to-adjust-1-2v-20v-and-3v-6v-9v-12v-by-lm317t-2n3055This 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 parts so easy to made and cheap. Friends would known the power supply as well. Because you must use [...]
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My first Variable DC Power Supply 1.2V to 30V 1A by LM317

September 12, 2012, 11:23 am
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Circuit-of-my-first-variable-dc-power-supply-1-2v-to-30v-1a-by-lm317If 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 my life that made to use in many projects. It is ideal for those [...]
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Cheap adjustable 0-30V 2A Laboratory DC Power Supply

September 16, 2012, 12:54 am
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cheap-adjustable-0-30v-2a-laboratory-dc-power-supplyThis 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 electronics work shop. Because it is a simple circuit and easy circuit. In addition to this has the over current protection [...]
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0-70 Volt 2 Amp DC variable power supply

September 18, 2012, 6:18 pm
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0-70-volt-2-amp-dc-variable-power-supplyWhen 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 add more 40V. You do not look difficult. We can adapt very easily, with the addition of just [...]
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Microprocessor dc regulator supply 5V 3A by LM323K

September 20, 2012, 1:01 pm
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Microprocessor-dc-regulator-supply-5v-3a-by-lm323kThose 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 much. This circuit will respond your needs did well - Due to this circuit is very simple with the IC-LM323K (or [...]
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Small uninterruptible power supply-UPS circuit

October 13, 2012, 3:17 pm
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small-uninterruptible-power-supply-ups-circuitThis 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 consists of a transformer, a bridge rectifier and an electrolytic capacitor. And there is a zener diode for controller the output power transistor(BD135 NPN) of this [...]
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Regulated DC power supply variable output 0-60V 1A

December 7, 2012, 6:00 am
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regulated-dc-power-supply-variable-output-0-60v-1aThis 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 is LM723. Or if you want to pressure is higher, use a number L146. Although is known less. But enough buy them. [...]
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0-60 volt DC variable power supply using LM317&LM337

January 2, 2013, 5:26 am
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0-60-volt-dc-variable-power-supply-using-lm317-lm337If 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 between 0 volt and 60 volt 2. Can provide DC dual variable on positive, negative and ground are +/- 0-30 [...]
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Variable zener diode circuit

March 22, 2013, 10:29 am
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variable-zener-diodeI 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 circuit features as zener diode voltage can be adjusted. And Zener diode features more than normal, are higher input [...]
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Variable switch mode power supply 0-50V 5Aby TL494 MJ15004

June 20, 2013, 9:16 am
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variable-switch-mode-power-supply-0-50v-5a-by-tl494-mj15004Today 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 Technology available high performance. than normal linear type are they are a small, energy saving and low heat. I apologize for [...]
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The step down 12 volts to 6 volts DC converter

July 17, 2013, 6:57 pm
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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 pin. Which, may be will applied number 7806 Provides the voltage of 6 volts. or [...]
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LM2575 Simple switcher 1A step down voltage regulator

July 17, 2013, 10:47 pm
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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 Semiconductor it why it is amazing since as step down voltage( Buck dc converter) switching regulator like 78xx series IC. But [...]
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Step up dc converter 1.2v to +5v/-5v for micro computer

July 18, 2013, 8:59 pm
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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 inside need a power supply of 5 volts, but low current. The voltage converter circuit on boost converter model. therefore had been a role, even in [...]
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DC switching power supplies

July 25, 2013, 9:11 am
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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, until friends say that difficult to see circuits or projects as you want. Particular DC switching power supply has very useful are [...]
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Portable power pack using LM1086 for mobile phones

July 27, 2013, 11:25 am
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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 phone to location-based applications. No electrical outlet to plug in to recharge the battery. and In event that use often [...]
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LM317 voltage regulators

July 31, 2013, 12:51 am
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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 It have an adjustable 3-terminal positive voltage regulator designed to supply more than 1.5 A of load current [...]
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Low dropout 5v regulator using LM317

July 31, 2013, 7:37 am
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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 From this circuit: Low dropout voltage regulators circuits that can converted voltage input from 6V to 5V output,they uses [...]
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How to use TL497 on 3 model switching power supply

August 2, 2013, 11:06 am
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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 high popular. Which we are use to suggest a lot of projects. Those who want the switched mode power supplies that has small [...]
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Adjustable dc voltage regulator circuit using ic-7805

December 19, 2013, 11:29 pm
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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 IC-7812, but sometimes we don’t have this number with any reason. But we have too many IC-7805 number, since […]
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5-volts DC regulator for portable MP3 player on motorbike

January 9, 2014, 9:08 pm
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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 been installed the stereo in a motorcycle. Can turn to music Sound of reasonably good. The regular budget, $ 50, […]
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