Tl494 Switching Power Supply Schematic

In the following paragraphs we learn the important functions of the ic tl494 and how to use it in pwm circuits.

Tl494 switching 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. This power amplifier circuit can be supplied with 30v to 100v dc asymmetric power supply using 8vdc bias voltage up to 12vdc. The schematic diagram is based on the design case presented in the reference designing switching voltage regulators with the tl494 texas instruments application report.

The tl494 is a fixed frequency pulse width modulation control circuit incorporating the primary building blocks required for the control of a switching power supply. Tl494 inverter circuit schematic tl494cn inverter circuit construction. See figure 1 an internal linear sawtooth oscillator is frequency programmable by two external components rt. For the output power of this amplifier can generate power up to 500watt pretty good is not it.

How to use ic tl494. Figure 1 is a block diagram of the tl494. Here we modify some part replace current sensing to use hall effect sensor chip acs712elctr 3 5 instead of sensing resistor. The tl494 ic is designed in such a way that it not only features the important circuitry needed to control a switching power supply but additionally tackles several fundamental difficulties and minimizes the need of supplemental circuit stages.