is a versatile fixed-frequency Pulse Width Modulation (PWM) controller IC designed to handle all necessary functions for power-supply control on a single chip. It is widely used in applications like switch-mode power supplies (SMPS) , DC-DC converters, and inverters. Core Features and Specifications Dual Error Amplifiers

Protection: Always use a fuse and a "Dead-Time" margin on Pin 4 when building high-power inverters to prevent "shoot-through" (where both output transistors are on at once).

Here is an example circuit using the TL494:

• Look for resistors from C1 and C2 to the gates of MOSFETs. Usually, you need a "totem pole" driver (like a pair of BC547/BC557) because the TL494's internal transistors cannot drive large MOSFET gates quickly.

TL494 Equivalent:

The TL494 is a voltage-mode PWM control IC designed for switching power supplies. It features a totem-pole output stage, which can source or sink high currents, making it suitable for driving power MOSFETs or IGBTs. The TL494 is widely used in various power supply applications, including flyback converters, forward converters, and half-bridge converters.

Pin 12 (VCC): Accepts a wide range of DC voltage, typically between 7V and 40V. Pin 7 (Ground): Connects to the common negative rail. 3. The Feedback Loop (Pins 1, 2, 15, & 16) This is the "brain" of the circuit.