Tl494 Circuit Diagram Better Link

The TL494 comes in a 16-pin package (DIP or SOP). Understanding the function of each pin is crucial for constructing any TL494 circuit diagram. Description IN+1, IN-1 Input terminals for Error Amplifier 1 Feedback terminal, output of both error amplifiers Dead-Time Control; sets minimum dead time Timing capacitor connector Timing resistor connector Ground terminal Collector and Emitter of Output Transistor 1 Emitter and Collector of Output Transistor 2 Supply voltage (input) OUTPUT CTRL Output mode selection (Push-pull or Single-ended) Reference Output IN-2, IN+2 Input terminals for Error Amplifier 2 Core TL494 Circuit Components

The IC contains:

The working principle is straightforward: the error amplifier compares a portion of the output voltage to a reference. Any error (deviation) changes the output of the error amplifier, which in turn changes the pulse width from the PWM comparator. By adjusting the duty cycle of the switching transistors, the output voltage is regulated. tl494 circuit diagram