Transformer X1 is a 230V primary to 9V-0-9V, 10A secondary used in reverse. Suitable heatsinks may be used for the output stage transistors. Somewhat higher wattage can be achieved by increasing the drive to 2N3055 transistors (by lowering the value of resistors R7 and R8 while increasing their wattage). STMicroelectronics is a multinational electronics and semiconductor manufacturer based in Geneva, Switzerland. This voltage can be used to heat your small electronic devices such as lamp, soldering iron, battery charger etc. When you power the circuit using switch S1, transformer X1 produces 230V AC at its primary terminal. The centre-tapped terminal of the secondary of the transformer is connected to the battery (12V, 7Ah), while the other two terminals of the secondary are connected to the collectors of power transistors T7 and T8, respectively. Although you could use this design to deliver 20 amps. then 2 times the amount of amps then the power supply delivers, making it real though to brake ). By using two 2N3055 transistors we become more. The outputs from the drivers are fed to transistors T5 and T8 (2N3055) connected for push-pull operation.Ī 230V AC primary to 12V-0-12V, 4.5A secondary transformer (X1) is used. 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.
The complementary outputs from collectors of transistors T1 and T2 are given to PNP darlington driver stages formed by transistor pairs T3-T4 and T6-T7 (utilising transistors BD140 and 2N6107). For obtaining correct frequency, the values of resistors R3 and R4 may have to be changed after testing.
It is an NPN (negative-positive-negative) transistor with a maximum collector current of 15 amps and a maximum collector-emitter voltage of 60 volts. *This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.Transistors T1 and T2 (BC548) form a 50Hz multivibrator. 1 Brief Description of 2N3055 2N3055 is a bipolar junction transistor (BJT) that is widely used as a power transistor in various electronic circuits. 2N3055 Datasheet : Silicon NPN Power Transistor, 2N3055 PDF VIEW Download Tiger Electronic, 2N3055 1 page Datasheet PDF, Pinouts, Data Sheet, Equivalent. The company offers a wide range of products including microcontrollers, sensors, power amplifiers, and integrated circuits for various applications in the automotive, industrial, and consumer markets.įounded in 1987, STMicroelectronics has operations in over 100 countries and is one of the largest semiconductor companies in the world. STMicroelectronics is a multinational electronics and semiconductor manufacturer based in Geneva, Switzerland.
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