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TL494 Internal function block diagram and basic unit circuit

2017-01-07 19:51  
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TL494 Internal function block diagram and basic unit circuit diagram
The system uses a PWM generator TL494 producd by Texas Instruments.It is a typical fixed-frequency PWM control IC, which contains all the required control switching power supply function. It can be used as a single-ended forward double tube, half bridge type, full bridge type switching power supply control system, the basic circuit units is shown as above.