Identification AC/DC PWM

ピンによるPWMコントローラの選択と識別のためのアプリケーション

Selection and identification of the PWM controller AC/DC converter by pin.

Every master involved in repair of electronic equipment, in particular repairs pulse power supplies, met with problems of identifying or selecting an analogue of a PWM controller chip that had evaporated or burst into small pieces.

Usually, the repair begins with drawing a diagram of the power supply, and this is where it ends, since downloading hundreds of datasheets and comparing them with the resulting diagram will take a long time.

Since every AC/DC PWM controller has the following pins:

- microcircuit supply voltage;

- common;

- Feedback;

- power transistor supply;

- not connected, not used;

- power transistor control;

This application will help in a matter of seconds to identify or select a PWM controller microcircuit, just select the pin numbers in the header according to their functional purpose.

Today the database contains 972 PWM controller names.