Tl494 Atx Power Supply Schematic. To make this power amplifier please see the circuit schematic of tl494 power amplifier below along with pcb layout design. Designed primarily for power supply control this device offers the flexibility to tailor the power supply control circuitry to a specific application.
Hi today am gonna show you how to make the most complete bench power supply based on the tl494 ic. The tl494 device incorporates all the functions required in the construction of a pulse width modulation pwm control circuit on a single chip. Designed primarily for power supply control this device offers the flexibility to tailor the power supply control circuitry to a specific application.
Short the emitter and collector together they are on the primary side.
Click on the schematic to zoom in. This power amplifier circuit can be supplied with 30v to 100v dc asymmetric power supply using 8vdc bias voltage up to 12vdc. Similar circuit is used in the most power supplies with output power about 200w. This mod will work with any atx smps as long as it uses the standard tl494 ka7500 ir3m02 pwm controller.
