LCD LED TV Repairing Switch Mood Power Supply Repairing Book

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Repairing Book Free Downloads:

Transformer Circuit Problem Solution:
There is a problem in the linear Transformer Circuit I can tell That is very easy to locate The guilt This is anyhow different in The case of a Turning mode power Supply The designs were Complicated and some Technicians found it quite hard to completely understand how To switch mode Power Supplies work.

How To switch mode Power Supplies work:
Output The B charge supply is when connected into a feedback loop which consists of optoisolator ic and an error amplifier TL431 IC back to the PWM IC. If the voltage from the B+ supply arises or drop a bit The PWM IC will act to correct the output.

Bridge rectifier Filter capacitor Startup Chopper Power FET.

The complete DC energy will Then Enter to start-up resistors to The input of Turning mode power transformer Once The voltage crossed through the high ohms resistor startup resistors the voltage would fall to a value anywhere it then enters to the VCC supply pin of Pulse amplitude intonation IC.

You must ask your self What is The program And its Capacity of The ingredients in The SMPS Circuit and how to verify if they disappoint. Find out The Reception of Some Elements in SMPS Circuit Bridge rectifier Filter Capacitor Startup Resistors Chopper Power FET.