) connected to pins 6 and 5, respectively. This creates a sawtooth waveform that defines the fixed switching frequency. Dual Error Amplifiers
generated by its internal oscillator against control signals from the error amplifiers. Internal Oscillator: It generates a linear sawtooth wave at a frequency set by cap R sub cap T cap C sub cap T PWM Comparator: tl494 circuit diagram
This is the most straightforward circuit to test the IC and generate a variable-duty-cycle PWM signal. ) connected to pins 6 and 5, respectively