How to use the TL494 pulse width modulation control IC? How we can use TL494 pulse width modulation control IC to generate fixed and variable PWM. In this tutorial on TL494, you will learn these concepts? Users can bypass an on-chip oscillator by connecting RT to the reference output pin. The external oscillator can also provide a reference frequency signal to this PWM IC. The dead-time comparator offers almost a 5% range. The comparator controls the dead-time with a fixed offset. The error amplifiers can compensate voltage from –0.3 to VCC – 2 volts in common voltage configuration. It comprises of on-chip two error amplifiers an oscillator with adjustable frequency feature, an output flip-flop having pulse steering control, and an output control circuit with feedback. TL494 is a PWM controller IC used for power electronics circuits.
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