The device has good amplifying factor and also the gain is almost linear making 2N3055. 2N3055 is also used in audio power amplifiers. 2N3055 is one of the basic transistors available in the market for cheap and with features being suited for many applications. It also can be used in audio power amplifiers as it has a good amplifying factor and gain is almost linear. 2N3055 is preferred when you want a simple switching device for medium power loads. This is a current control device, in which a small current at the base controls a large amount of current at the emitter and collector side. The basic application range include power switching, high fidelity amplification, shunt regulation, and forming the output stages of various power circuits. 2N3055 SILICON NPN TRANSISTOR SGS-THOMSONPREFERRED SALESTYPE DESCRIPTION The 2N3055 is a silicon epitaxial-base NPN transistor in JedecTO-3 metalcase. The 2N3055 is a NPN Epitaxial-Base Planar Transistor that normally comes encapsulated in a metal Jedec TO-3 package. In this project, we will build a simple 12V power supply circuit using 2N3055. It is manufactured with the epitaxial base process, mounted in a hermetically sealed metal case. Understanding 2N3055 Transistor Spec Sheet. A DC power supply takes AC from an outlet & converts it to regulated DC. In the 2N2222 NPN transistor, a single P-doped layer is embedded among two N-doped layers. This transistor is mainly designed for low power, low to medium current, medium voltage & works at fairly high speeds. Q2_BD139 80V 1.2N3055 is a silicon NPN transistor, designed for general purpose switching and amplification applications. The 2N2222A transistor is a common NPN BJT & it is mainly used in the applications of switching & amplifying with less power. * The 2N3055 transistor (Q4) can be replaced with the slightly less powerful TIP3055 type.Ĭ1_3300♟ 35V Electrolytic Capacitor (see Notes)Ĭ2_1♟ 63V Polyester Capacitor In this post we comprehensively discuss the pinout function, electrical specification, and application designs for the power transistor 2N3055.
#2N3055 TRANSISTOR SWITCHING CIRCUIT FULL#
Huge heat sink is required in this circuit, as 2N3055 transistors produce large amount of heat at full load. The 2N3055 is a power bipolar transistor designed to handle high power loads in the range of 100 V, and 15 amps. 0-28V, 6-8A Power Supply Circuit Diagram using LM317 and 2N3055 This design can produce a current of 20 amps with little modification (use proper rating transformer and a huge heat sink with fan). In some cases the rear panel of the metal box in which you will enclose the circuit can do the job. 2N3055 Datasheet, Pinout, Application Circuits.
#2N3055 TRANSISTOR SWITCHING CIRCUIT SERIES#
* Q4 must be mounted on a good heatsink in order to withstand sustained output short-circuit. The 2N3055 remains very popular as a series pass transistor in linear power supplies and is still used in for medium-current and high-power circuits generally, including low frequency power converters although its use in audio power amplifiers and DC-to-AC inverters is now less common and its use in higher frequency switch-mode applications. The circuit of this amplifier is quite simple because it has the minimum number of components. Best choices are: 36, 40 or 48V center-tapped and 50, 75, 80 or 100VA. This Audio amplifier consists of the single transistor (2N3005) and a simple amplifier circuit consists of simple electrical components like resistors, capacitors etc. * You can choose the Transformer on the grounds of maximum voltage and current output needed.
Here we are going to use 2N3055 as a simple switching device to drive a motor and is in common emitter configuration.
* P2 sets the output voltage and must be a logarithmic taper type, in order to obtain a more linear scale voltage indication. As mentioned earlier the 2N3055 can be used for any NPN transistor applications but for understanding the functioning of device let us consider a simple application circuit as shown below. * P1 sets the maximum output current you want to be delivered by the power supply at a given output voltage. You can adapt it to your own requirements as explained in the notes below.
Well suited to supply the circuits shown in this website. 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. 10 x 2N3055 TO-3 NPN AF Amp Audio Power Transistor 15A/60V. 2N3055 TO-3 NPN AF Amp Audio Power Transistor 15A/60V. A Variable DC Power Supply is one of the most useful tools on the electronics hobbyist’s workbench. 10Pcs 2N3055 TO-3 NPN AF Amp Audio Power Transistor 15A/60V.
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