Tl494 Circuit Diagram

The chip integrates several critical functions into a single 16-pin package:

The TL494 is a versatile, fixed‑frequency PWM controller originally designed for switching power supplies. It integrates the core functions needed to build regulated DC–DC converters: an error‑amplifier section, an internal oscillator, a dead‑time control input, a pulse‑width modulator with a comparator, an output‑transistor driver stage, and an overcurrent/feedback control pin. Its flexibility makes it suitable for flyback, forward, push‑pull, half‑bridge, and SEPIC topologies as well as simple switching regulators. tl494 circuit diagram

Sets the maximum duty cycle to prevent both output transistors from being on simultaneously. The chip integrates several critical functions into a

Disadvantages:

: These allow the IC to monitor both voltage and current simultaneously. One amplifier typically regulates the output voltage, while the second acts as a current limit for protection. Dead-Time Control (DTC) Sets the maximum duty cycle to prevent both

This is a practical power supply circuit: 12V to 5V @ 2A.