The TL082IPT is a dual operational amplifier (op-amp) IC with JFET inputs, manufactured by STMicroelectronics. Here is some information about its configuration, function, and typical applications:
The TL494CN is a pulse-width modulation (PWM) control circuit primarily designed for power supply applications. It provides control features for regulating the output voltage
The TL431 is a programmable precision shunt regulator integrated circuit commonly used in various electronic circuits for voltage regulation and control purposes.