This blog includes many interesting circuits which incorporates the IC 741 as the main active component for implementing the proposed functions. The present post explains yet a couple of more useful IC 741 application circuit ideas especially designed for the new electronic hobbyists.
Power Amplifier Circuit using IC 741
The first circuit diagram shows how the IC 741 can be configured as a high power amplifier circuit.
Regulated Power Supply Circuit using IC 741
Basically the IC is configured as a comparator cum driver for the proposed power delivering purpose. The employed zener diode has been included for fixing the non inverting of the IC with a constant refernce voltage.
An additional transistor BC107 has been included for making the circuit short circuit proof and also overload protected.
The output volts can be varied by adjusting the 10 K pot while the maximum current can be set by selecting or varying the 0.6 Ohm resistor appropriately as per the needs.