The base of Q1 is turned on and the voltage of pin 3 of UC3842 is reduced, turning off the IC and the entire power supply while Uo is zero, and go round and begin again. 8.3 Output voltage limiting ...

NPN Transistor Switching Circuit Before starting with the circuit diagram, you should know the concept of NPN transistor as a switch. In an NPN transistor, Current starts flowing from collector to ...

Selection of the Power Management IC Every SMPS circuit requires a Power Management IC also known as switching IC or SMPS IC or Drier IC. Let’s sum up the design considerations to select the ideal ...

Flyback-mode converter Even if it is based on the same components as the forward converter, the flyback converter operates in a substantially different way. The flyback regulator converts the input ...

Article Self-Switching Power Supply Self-Switching Power Supply 0I The proposed power supply switches itself off when no current is drawn by the load. How this is done is shown in the circuit diagram, ...

One can expect a switching power supply to be above 80% efficient, with most designs achieving an efficiency greater than 90% (Fig. 1). 1. This is a basic block diagram for a switch-mode power supply.

The industry drive toward smaller, lighter and more efficient electronics has led to the development of the Switch Mode Power Supply (SMPS). There are several topologies commonly used to implement ...