2n3055 Variable Power Supply Circuit Jul 1, 2018 · A varia
2n3055 Variable Power Supply Circuit Jul 1, 2018 · A variable power supply circuit diagram is a useful tool for any electronics enthusiast, TIP3055 x1 2, The circuit also incorporates an electronic output current limiter that effectively controls the output current from a few milliamperes (2 mA) to the maximum output of three amperes that the circuit can deliver, Using power PNP transistor booster with short circuit protection, By using two 2N3055 transistors we become more then 2 times the amount of amps then the power supply delivers, making it real though to brake ;), In this project, we will design a high-current variable power supply using 2N3055 transistors, allowing both voltage and current control, This circuit is quite popular among vehicles or busses in which the batteries offer 24V including different things within the electrical circuit where 12V may be essential, In this post I have explained how to make a simple variable power supply circuit using transistor 2N3055 and some other passive components, Jan 10, 2018 · Here we will see how we can make a simple 20 amp 24V adjustable power supply circuit using an LM317 IC and afew 2N3055 transistors configured in their emitter follower mode, The property is most important in common laboratory uses and in various applications that require AC voltage regulation, In this tutorial, we will show you how to build your own variable power supply using the UC723 IC, TIP41 transistor, and 2N3055 transistor, We can adjust the output voltage level as per our requirements, In this comprehensive guide, we'll walk you through the step-by-step process of constructing your own Adjustable Voltage Regulator utilizing the versatile 2N3055 Transistor, Its ability to regulate and control high voltage and current levels makes it ideal for maintaining stable output in devices that demand consistent power delivery, Overall, I recommended this power supply to anyone who A variable power supply is an essential tool for any electronics enthusiast or maker, Instead of the 2n3055 I recommend the TIP3055, 5v to max of 30v DC and current min 0 to max 10A, It allows users to make adjustments to their power supply to achieve the ideal voltage and current levels necessary for their electronic components, 2K others 1,204 98 82 Josef Spies The good old NE 3055 is simply not dead 3 mos 8 Torfinn Sæbø Josef Spies Neither is 741 3 mos Ben Miller Josef Spies there are devices that can substitute for Dec 19, 2023 · Simple 0 15 volt 1a adjule power supply 30v 5a regulated variable circuit eleccircuit com build a precision low noise analog devices 12v 3a using 2n3055 transistor Jul 5, 2020 · In this tutorial, we are going to make a 1, 2-30V, In this article, we will discuss a 12V variable power supply circuit diagram using 2N3055, BC547, and BC557 transistors, However make sure that all the 2N3055 are mounted over a large common heatsink, using a generous amount of heatsink compound paste but without mica isolators, Adjust voltage steps 3V, 6V, 9V, 12V and fine 1, 5-28V 8A power supply using LM317 and 2N3055 as pass transistor, the problem is that i am not getting adjustable voltages at the end rather it remains Build a adjustable voltage current power supply circuit to create a variable voltage and current source, for powering electronics projects, 5 V and 15 V with a maximum current of 500 mA, It has many features like short-circuit protection, less ripple factor, output voltage tolerance, etc, Main Specifications 1) Adjustable from 0-30V, 0-60V, and 0-100V, and 500mA to 10 Amp as per user preference 2) Short Circuit Protected […] Sep 19, 2021 · A simple 0-30V 0-3A regulated power supply circuit based on the NE5532 opamp IC that you can use in your electronics workshop, You may build a 10A DC power supply circuit, google, BD139 x1 3, The entire schematic ca Sep 26, 2009 · Variable Power Supply 0-24V – 2N3055 The 2n3055 variable power supply circuit described here is of an economical smooth variable power supply which offers 0V to 24V, The LM 723 is the heart of the power supply which drives the BD137 and then the 2N3055, 5 and 15 volts and give 15 amps current, In this type of supply, a linear regulator element (a variable resistor) in series with the load is connected to the output, Jul 11, 2015 · This is not a very good circuit (but it is simple and cheap), 7 – 24V and current limiting range of 50mA – 2A, New update Please read below this article, 2 to 21 volts and a variable Jul 6, 2021 · It is the best 10 Amp 0-30 Volt Variable Power Supply and Battery Charger Circuit based on 2N3055 and LM317 IC, 5 Amp of current, So to handle 10 Amp of current 2n3055 transistors are use which is power transistor with current handling capacity of up to 10 Amp, I A crowbar circuit is an electrical circuit used to prevent an overvoltage condition of a power supply unit from damaging the circuits attached to the power supply, So, it is a great pick for a small laboratory DC Power Supply usage at an inexpensive cost, A variable power supply is an essential tool for any electronics enthusiast or maker, 5A, Learn about the 2N3055 variable DC power supply circuit with voltage range from 0, It offers a continuously variable output voltage range from 3 V to 30 V, with a maximum output current of 2, At full output and a 24 volt supply, The 2N3055 will be dropping about 13-14 volts, and will be carrying most of the current (at least 95%), Basic parameters of the power supply: Input voltage 24 – 26 V AC, DC output voltage 0 to 30V, Output current 10mA – 3A, What Is a variable Voltage Power Supply? A variable voltage power supply is one that has some means available to easily adjust the output voltage, and sometimes the current, using a potentiometer or adjustable voltage regulator to power a range of electronic circuits, Perfect for beginners learning how circuits work, Full schematic diagram in the link below 👇👇 https://drive, Video Title: Adjustable Power Supply 2N3055 Transistors DIY - How to make battery charger 30V 10A Video Link: • Adjustable Power Supply 2N3055 Transistors Jul 5, 2025 · The LM317 variable SMPS circuit explained here effortlessly converts an ordinary LM317 IC into an inductor based switching regulator power supply counterpart, as exhibited in the following diagram: Sep 30, 2025 · This is a 0-60V, Dual Variable power supply circuit using LM317 and LM337 at 1, It’s a device that allows you to adjust the output voltage and current according to your needs, You can adapt it to your own requirements as explained in the notes below, Sep 21, 2025 · Build a powerful adjustable lab power supply (0–50V, 3A) with overcurrent protection, The video shows the testing procedure of a simple 0-50V or any preferred value variable power supply circuit using 2N3055 transistor, For implementing the current control feature, T3 along with P1, R5 and R4 are involved, Nov 18, 2024 · This article teaches how to create a basic variable power supply circuit with the use of the 2N3055 transistor and a few additional passive elements, Description: This project is a versatile power supply designed for use in electronics, capable of addressing various supply issues encountered in typical electronics workshops, Most of the electronic device need high current so it is useful, A linear element like BJT or FET is used to provide required currents at the Learn about the 2N3055 variable DC power supply circuit and how it works, Dec 12, 2023 · Presented here is a circuit for 30V 10A variable bench power supply that offers variable voltage and current adjustment, As is shown in the wiring diagram the 15 A adjustable power supply provides similar amount of current through the parallel work of four power transistors, which must be mounted on a good heatsink, The other thing you need to watch out for is power dissipation, You can supply an input maximum of 30V, 10A, 2-30V and Make A Voltage Regulator Using 2N3055 transistor,1V to 60V Voltage Controller Circuit, Nov 22, 2009 · 2N3055 power supply – DC regulated – Using LM741 Op Amp IC And 2N3055 Power Transistor The voltage regulated power supply provides an adjustable voltage output at a load current up to 1A, This may be the best project for you, With UA723 and 2SD5200, for DIY electronics projects, Get a detailed circuit diagram for a 0-30V 10A variable power supply for your electronics projects, May 17, 2025 · Build a 12v 3a Power supply circuit using 2N3055 NPN transistor, This feature makes this power supply Jul 31, 2023 · The circuit shown here is useful for those who need a variable and economical battery eliminator, or an adjustable power supply, Perfect for your electronics projects, It also includes a diagram of the circuit and lists the required parts to build the power supply, The regulation of voltage, of expense becomes with potentiometer R1 from 0v-30v DC roughly, So, let's see the circuit diagram and the connection 2n3055 Variable Power Supply Circuit - The shaft is equipped with three 20 kg compressor belts to ensure smooth operation, Feb 24, 2022 · A simple and locally adjustable power supply uses a potentiometer or other voltage regulating devices to adjust the voltage or current at the output, It is reliable, accurate and easy to make school project, Its stabilization is better than 2% if the current consumption does not exceed 350 mA, It divides the input voltage in half thanks to R1 and R2, To use a 2N3055 in a circuit, you’ll need to understand its schematic and wiring diagrams, which are essential components to constructing a variable power supply, Mar 10, 2025 · Are you looking for a mini voltage controller circuit? Yes, the perfect circuit for controlling the voltage from 0 to 60v DC circuit is here, The circuit provides adjustable output voltage from 0 to 30V and a maximum current of 5A, Perfect for electronics enthusiasts and DIY projects, If the output voltage can reach 50V, and not limited to the supply voltage of the op-amp (32 V), as in the vast majority of LBP circuits, It can supply the output voltage 1, The power supplies are an essential part of almost every electronic device, It is designed using LM317 and 2N3055, Op-amp U1 replicates that voltage at the output side labelled "ground" by allowing Q1 or Q2 to conduct to the extent required, CT/OV: Power supply connector (Central Tap/Over Voltage) JAL: May be a brand or circuit identifier This circuit uses the renowned Sanken transistors, and is designed to produce high output power, between 400 and 1200 watts, Learn how to build a variable DC power supply with a circuit diagram, providing adjustable voltage for various electronic applications, 5 A, sufficient for most applications, In this article, we will talk about a very simple variable power supply using a 2N3055 transistor, a 5k potentiometer, and one 2, In general LM350 regulator begins with 1, Jul 12, 2025 · Learn how to build a simple stabilized adjustable power supply 0-15V/5A circuit using ordinary components like IC741, and 2N3055 transistor, The main supply must be connected to a rectified source (transformer + 20-30A bridge rectifier), These circuits should include a separate zero-crossing or phase detector to synchronize with the AC power line, A voltage regulator with manipulatable current limits facilitates the generation of the desired output current, High quality 0-30v stabilized variable power supply circuit featured current control, Jan 19, 2025 · An awesome easy to build variable voltage and current work bench power supply can be built quickly using a single 2N3055 transistor and a few other complementing components, as shown below: For more description and parts list you can visit this post 12V to 48V Battery Charger using 2N3055 Please connect a 100 Ohm 1 watt resistor in series with the transistor base This simple automatic 2N3055 Introduction A variable power supply is one of the essential tools in electronics, Nothing to say about the project, it is really simple, Nov 26, 2023 · Here in this article, we will see the circuit diagram of an Adjustable or variable power supply, It can supply a range of voltages and currents for various electronic devices, When this voltage drop is higher than 0,6 volts, the TIP42C starts to conduct and it drives the two 2N3055, The 2N3055 is on a emitter follower configuration and it will supply current to the output of the power supply 20 Amp variable power supply with an output voltage from 1, This high current dc power supply circuit diagram is very easy to make at home, In this circuit, we are going to make a 24 Volt LM317 5A Variable Or Adjustable Power Supply, Learn how to design a versatile variable power supply circuit providing 0 to 28V at 6 to 8 amps using LM317 and 2N3055, Oct 9, 2021 · An ideal power supply unit must feature a variable voltage and current power supply circuit, 6 to 40 volts maximum, that’s very handy indeed, To get decent efficiency the voltage with the collectors of the a pair of parallel 2N3055 pass transistors Sep 30, 2025 · Learn how the LM338 voltage regulator works, with adjustable power supply examples, pinout guide, and specs for DIY and electronics learners, In this tutorial, we are going to make a “Simple Variable power supply circuit 0-30V 2A”, 5A current so can builds to easy with PCB layout, adjustable voltage VR1,VR2 Nov 5, 2025 · A2aelectronics Nov 5 · Timeline photos 2N3055 Using Variable Power Supply circuit#2n3055#variablepowersupply#powersupply#circuit Narimanana Iarry and 1K others 1,086 85 105 Geoff Rigby Because of C2 output voltage will be unstable when the load changes, it will Introduction A variable power supply is an essential tool for anyone working with electronics, 25V, 0-28V 6-8A Power Supply (LM317, 2N3055) 0-28V 6-8A Power Supply (LM317, 2N3055) This is an easy to make power supply which has stable, clean and regulator 0-28V 6/8 Amp output voltage, 5V/3V Step down switching regulator (5V input) using KA34063 7805 Constant Current Battery Charger circuit Gel cell battery charger circuit How 741 Op-Amp Power supply Circuit works Simple Variable power supply circuit 0-30V 2A Sep 7, 2016 · 2N3055 Variable DC Power Supply circuit and explanation #PowerSupplyCircuit VARIABLE POWER SUPPLY USING LM317 : • VARIABLE POWER SUPPLY USING LM317 | D Capacitor Value Calculation Formula : • Capacitor Value Calculation Formula | A variable dc power supply is one of the most useful tools on the electronics hobbyist's workbench, 2V to 24V and current up to 5A, Aug 1, 2022 · Introduction: An Adjustable Power Supply is an essential tool for anyone who tinkers with electronics, Jul 1, 2018 · The 2N3055 is a go-to choice for making a variable power supply, as it’s a rugged and reliable transistor that can handle up to 150 watts of power output, The 2N3055 and TIP122 transistors must be installed on Jan 10, 2018 · The high current LM317 power supply circuit shown down the page makes use of an supplemental winding or possibly a independent transformer to deliver power to the LM317 regulator in order that the outboard pass transistors are able to work nearer to saturation and strengthen efficiency, Jul 12, 2025 · Learn how to build a simple adjustable regulated power supply circuit using IC 723 which can be used to get variable regulated DC outputs, Jul 27, 2023 · Introduction A power supply is an essential component in any electronic circuit, In this article, we will explain how to make a high-quality The BD139 is a complementary transistor to the 2N3055 and is commonly used in voltage regulators and power supply circuits, This adjustable power supply can be built using few components, The voltage adjustment is performed in integrated LM317 This is a basic voltage and current adjustable power supply, The difficult road to the distribution point and depletion point of metal plate, I often end up with the power clips shorting out on the bench and with no problems, Use a series of 7812 regulator ICs, 10A fixed regulated Supply using 78XX – MJ15004 If you have a lot of old pieces of equipment, 2 ohm resistor, 5 to 15 volts using the LM317 regulator and 4 2N3055 power transistors to amplify the current capacity Sep 16, 2025 · This is a 0-30V Variable Power Supply circuit, This schematic is far better, The entire design is transistor (BJT) based and is virtually indestructible, Dec 30, 2018 · This is a 0-30V 5A variable benchtop power supply circuit, with a voltage and current adjustable system, This variable power supply circuit is designed to provide a versatile and adjustable output voltage, suitable for various electronic applications, Mar 8, 2020 · Designing a IC 723 Power Supply with Variable Voltage and Current Last Updated on March 8, 2020 by Admin 2 Comments The article provides tips and design considerations regarding building a well optimized IC 723 regulated power supply circuit, How to make 12v 5A Power Supply | 2N3055 | Power Supply Circuit Diagram | DIY Electronics Projects more Dec 31, 2024 · 3 30 v 2 5 a ilized power supply electronics lab com 10a 1 30v variable with lm317 simple voltage regulator using 2n3055 eleccircuit circuit 0 2a adjule 60v dual by Aug 9, 2011 · Variable Voltage power Supply Using 2N3055 Transistor A very reliable and efficient variable voltage and variable current power supply design can be built using a 2N3055 transistor in conjunction with a couple of other active and passive components, Components used in this project:– 1, Main Specifications 1) Adjustable from 0-30V, 0-60V, and 0-100V, and 500mA to 10 Amp as per user preference 2) Short Circuit Protected […] 5V Low Dropout Regulator Circuit using transistor and LED 3, What is 2N3055? The 2N3055 is a versatile NPN power transistor built using an epitaxial base process and encased in a Welcome to this tutorial on designing a variable power supply with adjustable voltage and current using LM317 IC, BD139 and TP3055 transistors, 7V to 5V Boost/Step-up DC converter circuit using MC34063 1, A stable power supply, with overcurrent and overvoltage protection, adjustable from 11v to 15v Building this design is reasonably easy if you have basic soldering skills and some vero board, however BE CAREFUL when messing with your power supply, as the primary side of the transformer contains lethal voltages, Want more brilliant ideas? Here’s how to get them through electronic circuits, Few things missing from your schematic is the kick back protection diodes for the regulator, the fact that 40v is the MAX the LM317 can handle across input to output and should be less than that to be within the safety margin, Power supply is based around a LM723 voltage regulator chip and has current limiting, John also provided a regulated power supply that has a nice current control feature, but it uses the LM723 instead: Here is the ready-built supply, using LM723: Phil’s Supply: Phil provided several helpful advises (see comments section) for others willing to build a power supply, Manufactured by multiple semiconductor companies, this transistor is widely used in power amplifiers, switching circuits, and power supplies, This post explains the working of a variable DC power supply circuit that has an adjustable voltage range of 1, The output voltage 0-30V and a maximum current of 5A, LM317 have been used to drive 3 NPN TIP41C transistors (or three 2N3055), Nov 17, 2024 · It is intended to handle currents more than 3 amps, but not more than 5 amps, using a straightforward, effective, high current 2N3055 power supply, May 12, 2023 · The circuit of this Variable Power Supply 0-30V_10A is built using commonly available electronic components, You will able to adjust the output voltage from 0 volt to 30 volt DC, Nov 10, 2024 · Learn comprehensively how to use and connect LM317 IC to build various types of adjustable power supply circuits, It allows you to regulate the voltage and current going to your circuit, ensuring safe and proper operation, Jul 5, 2024 · The 2N3055 is a popular silicon NPN power transistor known for its robustness and versatility in various high-power applications, Explore the detailed explanation of how this circuit works, In the shown design the current is restricted to 2 amps as displayed, although could be enhanced to 5 amps or even more by opting for a smaller sized current sensing resistor (0, A power supply circuit is rated by the voltage or range of voltage it supplies and the maximum current it allows to draw by a load, In this DIY guide, we will be building an Adjustable Power Supply DIY with the help of two 2n3055 transistors, one LM317 Regulator IC, one BD139 transistor, and few other components, This circuit provides a voltage range of 0, Boosting output LM317 variable voltage regulator with NPN pass transistor, But this is special, start with 0V, The way the circuit works is very easy to understand, Perfect for electronic circuit projects and battery chargers, com/file Apr 24, 2022 · The power supply designed in this project is an adjustable linear regulated type so the output voltage of the circuit is constant and is varied mechanically with the help of a variable resistor, This is an easy to make power supply which has stable, clean and regulator 0-28V 6/8 Amp output voltage, The 2N3055 plays an essential role in power supply circuits, including both linear and switching types, , Jun 6, 2020 · Therefore, we are using transistor 2N3055 which is the silicon NPN power transistor intended for general purpose applications, and a 5K variable resistor for adjusting the resistance value, Jun 28, 2025 · hi i am making a 1, Main Specifications 1) Adjustable from 0-30V, 0-60V, and 0-100V, and 500mA to 10 Amp as per user preference 2) Short Circuit Protected […] Mar 27, 2015 · General Description This is a high-quality power supply with a continuously variable stabilized output adjustable at any value between 0 and 30VDC, This is simple 2N3055 Variable power supply circuit, This Jul 31, 2025 · A2aelectronics Jul 31 · Timeline photos 2N3055 Variable Power Supply#2n3055#variablepowersupply#fbpostviral#electronics#technology#fbpost#diy#circuit Tarachand Tara and 1, Aug 2, 2025 · The 0-12V Variable power supply circuit, 3A output current, Jul 1, 2022 · The circuit consists of the following units: a rectifier with a filter, a +12V voltage stabilizer, voltage stabilization, current stabilization, indication, a control unit and overheating protection, This power supply can output a voltage range of 1, It uses an LM723 voltage regulator integrated circuit and two 2N3055 power transistors to increase the current output up to 5A, 5V to 15V with a maximum current of 500mA, There are two circuits to Sep 16, 2025 · Here is an LM317 Adjustable power supply circuit, See its pinouts, circuit calculator, and example circuits, With conveniently adjustable output voltage from 0V to 30V, at 3A current, and overload protection, 2V to 30V at the max current of 1, The LM317 adjusts the voltage, Maybe check the adjust pin with a dvm to make In this post I have explained how to make a simple variable power supply circuit using transistor 2N3055 and some other passive components, The stability of the device and its repeatability are just As name given "10amp Variable Power Supply", the load can draw up to 10amp form this circuit, 3 ohm), Jan 10, 2018 · Thus this simple tweak using a few 2N3055 transistor transforms a ordinary LM317 variable regulated power supply into an awesome high current LM317 regulated variable power supply unit, 25V to 20V, In this tutorial, I will walk you through the steps involved in designing this circuit, including the schematic diagram and the necessary components, By adjusting R1 and the zener diode's value, the necessary voltage may be stabilized appropriately, This circuit has some advantages such as it it can deliver an output voltage between 1,5 V and 15 V with a 500 mA maximum current and low production cost, We are using a 2N3055 power transistor, Aug 31, 2016 · I'm actually building my own version of this same power supply for bench usage right now, You want a good variable power supply, As current starts to flow through the 8,2ohm resistor, a voltage drop will appear across it, Continuing on from our previous tutorial about how to converting an ATX PSU to a bench power supply, one very good addition to It is a simple circuit regulated power supply, based on the known LM 723, that drive a transistor Q1 [2N3055], Sep 16, 2025 · If you want to add current to the IC 79xx or negative voltage, you can also easy to make, but simple NPN transistor type 2N3055 is only a number, 2N3055 Using Variable Power Supply circuit#2n3055#variablepowersupply#powersupply#circuit Narimanana Iarry and 1K others 1K 85 Geoff Rigby Because of C2 output voltage will be unstable when the load changes, it will Description: This is a high quality power supply with a continuously variable stabilized output adjustable between 0 and 30VDC, Jan 10, 2018 · This 0-24V 5 Amp variable power supply circuit regulated mainly uses transistors for the power control and can be easily altered from 3 to 24 volts, This circuit will provide a 0 to 30V DC power supply with a 2A current, The key components include a 5K potentiometer for Learn how to build a simple variable power supply circuit using 2N3055 transistor, providing an output voltage range of 1, Jun 6, 2025 · Here we learn how to make a very simple 100 watt amplifier circuit using a 2N3055 transistors and a few other passive components, Sep 18, 2025 · We can use 2N3055 to make a simple variable power supply circuit as shown in the figure below, By itself, it will supply output currents up to 150 mA, This power supply is ideal to use in almost all circuits and devices because it provides both low and very high voltages, 2 – 57V Adjustable Stabilized Power Supply Using LM317HVK, Jul 31, 2014 · The basic design of the proposed 0 to 50V variable dual power supply circuit with 0 to 10 amp variable current facility is shown in the above figure, The supply has a built-in overload protection, 2-30V and This document describes a 0-30V 0-5A variable benchtop power supply circuit, Jan 8, 2022 · A simple and locally adjustable power supply uses a potentiometer or other voltage regulating devices to adjust the voltage or current at the output, Especially below 2N3055 power supply circuit can regulate from zero voltage, Jul 9, 2016 · Power Supply Circuit Diagram using LM317 and 2N3055 (0-28V, 6-8A) is the artlcle explaining Power Supply Circuit Diagram using LM317 and 2N3055 A Variable DC Power Supply is very important for electronics projects, prototyping 30V 10A Variable Bench Power Supply Presented here is a circuit for 30V 10A variable bench power supply that offers variable voltage and current adjustment, Aug 22, 2024 · This article describes you how to design a variable power supply circuit which will provide 0 to 28V at 6 to 8 amps, Usually, there are power supplies with fixed voltages and we use fixed voltage regulator ICs in their circuits but there are times when a variable or adjustable power supply is needed or you want to get more utilization out of a single power supply then this is an ideal circuit for that, Includes sample circuits, Simply by incorporating just four transistors in the quasi-complementary configuration this 2N3055 simple power amplifier circuit can deliver a good 100 watts of power over an attached 4 ohms loud speaker, and the entire design can be built at a really low cost (to In this post I have explained how to make a simple variable power supply circuit using transistor 2N3055 and some other passive components, Jan 9, 2023 · A variable power supply is an essential tool for any electronics enthusiast or maker, The BD139 has a higher current gain than the 2N3055, making it an ideal choice for use in the input stage of the amplifier circuit, Unlike FETs (Field effect transistors) it is a current-controlled device in which a small current at the base side is used to control a large amount of current at the emitter and collector side, The presented circuit is capable of providing a variable voltage of 1, Jan 28, 2023 · Complete Dual Power Supply Circuit using IC 741 The complete dual power supply circuit is shown in Figure 2 using 2N3055 transistors as the driver transistor, Main Specifications 1) Adjustable from 0-30V, 0-60V, and 0-100V, and 500mA to 10 Amp as per user preference 2) Short Circuit Protected […] I hope you will like this video, So the power dissipated will be about 3 amps times 14 volts, or roughly 40 watts, Its output can be adjusted from 0-30V at a maximum current of 2A, Thus, for this reason, we will be looking at ways of creating a Jun 21, 2025 · Electronic circuit and Diagram Tafied All BadawiJun 16 Simple Variable Power Supply Circuit using 2N3055 Transistor, I have explained how this high voltage LM317 HV design is created for the proposed 0-60V variable power supply circuit operations, Feb 11, 2020 · 2N3055 power transistors are a common part of 12V power supply circuits The 2N3055 is a semiconductor NPN bipolar power transistor that consists of three terminals called emitter, base, and collector, Apr 17, 2023 · Th 2N3055 & MJ2955 transistors offer high power handling capacities in class-AB amplifier & C2383 improves low-level signal amplification, Jan 17, 2025 · This makes the IC extremely versatile, flexible and a true friend of all electronic hobbyists who are always looking for an easy to build yet rugged and powerful workbench power supply circuit, That be simple please, when This adjustable power supply circuit provides an output voltage source which can be adjusted between 1, So you can use this circuit for laboratory use, battery charging, amplifier circuits, testing purposes, etc, This circuit is likely a class AB amplifier, which combines efficiency and linearity, 2-30V and Discover simple power supply circuit basics with clear diagrams and step-by-step explanations, Main Specifications 1) Adjustable from 0-30V, 0-60V, and 0-100V, and 500mA to 10 Amp as per user preference 2) Short Circuit Protected […] a simple variable power supply circuit utilizing the 2N3055 NPN power transistor to deliver an adjustable DC output voltage from a +30V DC input, My Arduino or other microcontroller-based variable AC power control circuits can use these, Build over 17 variable power supply circuits using affordable and durable components Ideal for DIY hobbyists and electronics beginners, Use LM723 as a voltage regulator designed primarily for series regulator applications, Jan 18, 2009 · For the fan’s power supply, parts of the kit that use another LM338 are placed on a small board and power is supplied by turning on the AC side switch, Description: This simple variable power supply circuit has a low production cost and delivers an output voltage between 1, It provides all controls and short circuit protection with acceptable regulation and a ripple free supply and yet uses very few components, Jul 14, 2025 · The LM317 linear voltage regulator is the top pick for a variable DC power supply, 7 to 24V and current limiting range from 50mA to 2A, Apr 3, 2022 · Here is 12V 5A linear power supply, It provides the necessary electrical energy required to power various devices or components, Juan Carlos Melgarejo Maguiña and 89 others 90 28 2 Po Po Chow Good 5 mos 1 Rommel Caña better to add LM317T in between input of the regulator (collector) to the input of your transistor ( emitter Learn how to build a simple variable power supply circuit using 2N3055 transistor, providing an output voltage range of 1, This is a high ampere DC power supply circuit, It includes variable voltage and variable current feature, fully adjustable, Mar 21, 2009 · This simple variable power supply circuit has a low production cost and delivers an output voltage between 1,5 V and 15 V with a maximum current of 500 mA, A dual voltage power supply is even more valuable, as it allows you to independently control two voltages on the same circuit, This circuit is not an absolute novelty, but it is simple, reliable, "rugged" and short-proof, featuring variable voltage up to 24V and variable current limiting up to 2A, May 13, 2022 · Therefore in this variable power supply circuit using 2N3055 transistor, the transformer being a 0 – 40 V, the output becomes variable right from 0, IC L146 is the improved version of IC 723 which can be also used in the explained design, Dec 10, 2023 · Another very simple high current LM317 variable power supply can be built by connecting a few power transistors like 2N3055 in emitter follower configuration with the output of a standard LM317 power supply circuit as shown below, Here is a simple and economical 10A variable power supply with 1, The capacitor of the smoothing circuit of the main power supply has been changed from 6800uF + 2700uF + 2200uF = 11700uF to 6800uF + 4700uF = 11500uF due to backlash, buy a triple trial pack online This circuit is a simple stabilized regulated power supply whose output voltage is 0-15 volts and the output current is 3A, Jul 13, 2025 · Let's build LM317 pass transistor circuit, with 2N3055 3A variable power supply, If you are a beginner in electronics, To regulate the voltage I use LM317 which is basically a VOLTAGE REGULATOR which can handle up to1, It is a regulated power supply, which means that the output voltage and current are constant, regardless of changes in the input voltage or load, It allows you to easily adjust the voltage and current output to power and test different electronic circuits, It comes with adjustable variable voltage and current features, completely customizable, These transistors, along with a 15V zener diode, play a crucial role in regulating the output voltage 0-30V 0-10A regulated variable power supply circuit This is the circuit diagram of the voltage and current regulator circuit that can give the output of min 1, The design uses dual 2N3055 transistors to handle the high current flow, while LM317 is used to regulate the output voltage, So need to use two transistors 2N3055 for boost up current to 5A, Also, it is a high-efficiency regulator by using a UA723 IC-regulator, and a TIP3055 power transistor, Sep 16, 2025 · Look in 0-30V, 1A, Variable power supply using IC-741,2N3055, and 2N3565 First, the input of the circuit plugs into the wall and converts the high-voltage AC supply in your home into a safe, low DC voltage for electronic devices, Jul 12, 2025 · Build a adjustable voltage current power supply circuit to create a variable voltage and current source, for powering electronics projects, This power supply will convert 230V Alternating current into a steady 15 volts DC which are usable by electronic circuits and devices,