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Opamp Hysteresis – Calculations and Design Considerations

Last Updated on March 4, 2021 by Swagatam 8 Comments

In most automatic battery charger circuits in this blog you might have seen an opamp with a hysteresis feature included for some crucial function. The following article explains the significance […]

Filed Under: 741 IC Circuits, Electronics Tutorial

Solar, Wind, Hybrid Battery Charger Circuits

Last Updated on April 8, 2021 by Swagatam 207 Comments

The article explains a dual input hybrid solar and wind battery charger circuit using cheap and ordinary components. The idea was requested by one of the interested members of this […]



Filed Under: 741 IC Circuits, Solar Controllers

IC LM321 Datasheet – IC 741 Equivalent

Last Updated on January 1, 2020 by Swagatam 14 Comments

The IC LM321 is the single op amp version of LM324 which is a quad op amp IC and carries 4 of these ICs in one package. Therefore for applications […]

Filed Under: 741 IC Circuits, Datasheets, Electronic Components

IC 741 Low Battery Indicator Circuit

Last Updated on June 4, 2022 by Swagatam 173 Comments

The proposed circuit was requested by one of the avid readers of my blog. It is a low battery warning indicator circuit using opamp IC 741 and can be used […]

Filed Under: 741 IC Circuits, Mini Projects, Sensors and Detectors

Simple Bedroom Lamp Timer Circuit Using IC 741

Last Updated on September 5, 2021 by Swagatam 18 Comments

A simple automatic bedroom lamp timer circuit has been described here to switch off your bedroom lamp after a fixed predetermined time. The use of the reliable 741 IC makes […]

Filed Under: 741 IC Circuits, Mini Projects, Timer and Delay Relay

12 Easy IC 741 Op Amp Circuits Explained

Last Updated on March 12, 2023 by Swagatam 32 Comments

The 12 fundamental IC 741 based op amp circuits presented here are not only interesting but also very amusing to build. The included circuit ideas like inverting and non-inverting amplifiers, […]

Filed Under: 741 IC Circuits, Electronic Components

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