Rongge

The objective of the circuit is to create a power supply that would produce an output of 0 V to 15 V at 1 A current. Terminology 2N3055 – a complementary Silicon Epitaxial-Base planar NPN transistor mounted in Jedec TO-3 metal case for use as power transistor Bridge Diode – also known as bridge rectifier which has four diodes arranged in a bridge configuration where the output voltage has the same polarity with either polarity of the input voltage Circuit Explanation The construction of this power supply circuit is very simple in such a way that the components used are easy to be located while the cost is very cheap. With the biggest provided current at 1 A, the output voltage is adjusted for minimal ripple effect and stabilized in the range of 0 V to 15 V DC. This is made possible by the standard transformer output of 1.5 A with a primary winding voltage of 220 V and secondary voltage of 18 V. The current is being limited by the Zener diode D1 with a rating of 18 V and 1.5 W. The li...

MSK5012 is a highly reliable adjustable voltage regulator.Whose output can be programmed using two resistors. The regulator has a very low dropout voltage(0.45v @10A  )due to the usage of MOSFET with very low Rds (ON) as the internal series pass element.The MS5012 has a high level of accuracy and ripple rejection is around 45dB. It is available in a 5 pin Sip package that is electrically isolated from the internal circuitry. This give us the freedom to fit the IC directly to the heat sink and this sort of direct heat sinking improves the thermal dissipation. Description. The output voltage of this circuit is adjustable from 1.3v to 36v DC.Resistors R 1 and R 2 are used for programming the output voltage.For all applications, value of R 2 is fixed to 10K. The relationship between R 1 ,R 2 and output voltage Vout is according to the equation R 1 =R 2 (Vout/1.235)-1. C 1 is a filter capacitor which is also a part of the gate drive circuit of the internal series pass MOSFET. ...