Power Supply 5V 5A MJ2955

Power Supply 5V 5A MJ2955

Thursday, June 14th, 2018 - Power Supply Circuit

Power supply 5V 5A MJ2955 on a circuit schematic below using positive voltage regulator LM7805 and PNP transistor current amplifier type MJ2955. The circuit power supply 5V 5A MJ2955 is often used to provide a DC voltage source to the TTL circuit or control circuit with a microcontroller. Power supply used in digital system must have an output voltage that is stable and resistant to noise. The circuit schematic and component list to create a power supply 5V 5A MJ2955 can be seen in the following figure.

Circuit Of Power Supply 5V 5A MJ2955

Power Supply 5V 5A MJ2955

Component Of Power Supply 5V 5A MJ2955

The circuit power supply 5V 5A MJ2955 above is constructed using several components that function as follows.

  • Step-down transformer 220V / 12V 5A without CT serves to lower the 220V AC voltage into AC voltage of 12 V.
  • 5A bridge diode and capacitor C1 serve as a rectifier voltage AC into DC voltage
  • LM7805 positive voltage regulator serves to regulate the output voltage of the power supply that is stable at a voltage of 5 volts DC.
  • MJ2955 PNP transistor serves as a current amplifier up to 10A and fixed output voltage of 5 volts DC is controlled by a regulator IC LM7805

The circuit power supply 5V 5A MJ2955 can be used to provide the supply voltage to the digital circuit or microcontroller TTL fairly complex. In the series’ 5A 5V power supply needs to be installed heatsink is sufficient to power regulator transistor MJ2955 because the transistor will generate heat at a large load so that the circuit power supply 5V 5A MJ2955 stable and secure.

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