Circuit Diagram — Tl494

Adjusting the potentiometer changes the duty cycle from ~0% to ~95%.

f_osc (kHz) = 1.1 / (R_rt (kΩ) × C_ct (µF))

Example: RT = 47kΩ, CT = 10nF →
f = 1.1 / (47 × 0.01) = 2.34 kHz (or 1.1 / (47e3 × 10e-9) = 2.34 kHz) tl494 circuit diagram

| Application | Configuration | |-------------|---------------| | Boost converter | Single-ended, external MOSFET | | Push-pull inverter | Pin 13 to REF, external transformers | | Battery charger | Use second error amp for current limiting | | Solar MPPT controller | Dual-loop control using both error amps | | ATX power supply modification | Replace original PWM controller | Adjusting the potentiometer changes the duty cycle from