Tl494 Circuit Diagram Online

The TL494 might be an "old" chip, but its flexibility and low cost make it a staple for anyone serious about power electronics. Whether you're building a laboratory power supply or a solar inverter, mastering this circuit is a rite of passage.

The IC uses an error amplifier to adjust the output voltage relative to the load, providing consistent output current, say, in a buck converter scenario. tl494 circuit diagram

Compare feedback voltage to the reference to adjust PWM. The TL494 might be an "old" chip, but