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How to test a 2n3055 transistor how to#

The way of controlling power motor via simple push button realizes the use 2N3055 as a switching device and in the same way we can use 2N3055 in other transistor circuits. With transistor going to high resistance state in OFF mode, the collector current also becomes zero bringing motor to stop. This motor will keep rotating until there will be base current.Īfter a certain time when the button is released the base current becomes zero and the transistor gets turned OFF. Having transistor acting as short circuit in ON state there will be collector current which flows through motor making it rotate. With this closed loop a current flows through base of transistor and with base current flow the transistor gets turned ON. When the button is pressed at certain time, the voltage V2 forms a closed loop with base-emitter of transistor as can be seen in circuit diagram. With no base current the transistor acts as open circuit and the entire supply voltage V1 will appears across it. Under initial conditions the button will be open and no current flows through the base of transistor. The 100Ω resistor is provided for limiting the current through base. The trigger source and power source must share a common ground for the circuit to work. Here we are going to use 2N3055 as a simple switching device to drive a motor and is in common emitter configuration.Īs show in circuit we are using a motor as the load and the gate signal for turning ON the transistor is provided by 5V source with button being the triggering device. The device has good amplifying factor and also the gain is almost linear making 2N3055 one of best solution for power amplifiers.Īs 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. 2N3055 is one of the basic transistors available in the market for cheap and with features being suited for many applications.ĢN3055 is also used in audio power amplifiers.

Operating temperature range: -65✬ to +200✬ĢN6673, 2N6675, complementary pair- MJ2955ĢN3055 is preferred when you want a simple switching device for medium power loads.

Maximum voltage across collector and base: 100V DC.

Maximum current allowed through base: 7A DC.

How to test a 2n3055 transistor how to#

From the basics of transistors, the different types, the most popular parts, and how to use them in circuits, I have you covered in this.

Maximum voltage across base and emitter: 7V DC Here you will find the complete guide on transistors.

Maximum current allowed trough collector: 15A DC.

Maximum voltage across collector and emitter: 60V DC.

Low collector-emitter saturation voltage.

Normally used as trigger to turn ON the transistor The pin configuration of 2N3055 is given below. Like any other transistor 2N3055 has three pins namely EMITTER, BASE and COLLECTOR. The device is designed for general purpose switching and amplifier applications.

Used as an RPS (Regulated power supply) to provide the DC supply to the various electronic circuits such as small electronic projects.2N3055 is a general purpose NPN power transistor manufactured with the epitaxial base process, mounted in a hermetically sealed metal case.

DC power supplies are widely in use in low voltage applications such as charging batteries, automotive applications, aircraft applications and other low voltage, low current applications.

Used in various power amplifiers and oscillators to provide DC supply.

The DC signal then passes through capacitor C2 to remove any residual noise before going on towards the output. Combine, they provide a regulated 12V DC at a relatively low current.Īfter this, the signal is passed through a current amplifier (2N3305) in common base configuration to boost the current to 3A DC with the base reference voltage acting through a Zener diode voltage regulator. Here, a 680Ω resistor acts as a current limiting voltage source. The signal then passes through a voltage regulator section using a 12V Zener diode. After which the signal passes through a smoothing capacitor C1 (5000μF) to remove any undesirable noise. On providing an AC input from a 230V/15V 5A non-CT transformer, The stepdown AC signal passes through a bridge rectifier which translates the AC signal into a rippling DC.