Uc3842 Smps Circuit Diagram. In many cases multiple led strips may be used with the output that could result in voltage drop at output as the. I got this project from a member and have redrawn the diagram for easy fixing.
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The switching supply uses igbt transistors and is controlled by uc3845 chip. Shutdown of the uc3842 can be accomplished by two methods. One or more uc3842 oscillators can be synchroni zed to an external clock as shown in figure 8.
Noise immunity is enhanced if the free running oscillator frequency f 1 tc td is programmed to be 20 less than the clock frequency.
In my article about smps s it is a topology ii d. 170 to 265v constant output dc voltage. Input ac voltage range. In my article about smps s it is a topology ii d.
