![operational amplifier - Single Supply Op - Amp circuit not working - Electrical Engineering Stack Exchange operational amplifier - Single Supply Op - Amp circuit not working - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/E4J7l.png)
operational amplifier - Single Supply Op - Amp circuit not working - Electrical Engineering Stack Exchange
![operational amplifier - Single supply inverting op amp: output not as expected - Electrical Engineering Stack Exchange operational amplifier - Single supply inverting op amp: output not as expected - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/q03ml.png)
operational amplifier - Single supply inverting op amp: output not as expected - Electrical Engineering Stack Exchange
![For a single-supply inverting op amp (in this case 9V), I often see a resistor connecting +in to virtual ground – but not always. Is there a handy rule for determining the For a single-supply inverting op amp (in this case 9V), I often see a resistor connecting +in to virtual ground – but not always. Is there a handy rule for determining the](https://preview.redd.it/fzo65a3ht5781.png?width=640&crop=smart&auto=webp&s=76e202f6f7d813e9f27323943a91fb70e820d44f)
For a single-supply inverting op amp (in this case 9V), I often see a resistor connecting +in to virtual ground – but not always. Is there a handy rule for determining the
![Single-ended noninverting voltage amplifier. The power supply (|VS+|=... | Download Scientific Diagram Single-ended noninverting voltage amplifier. The power supply (|VS+|=... | Download Scientific Diagram](https://www.researchgate.net/publication/254041973/figure/fig1/AS:669075885809667@1536531530318/Single-ended-noninverting-voltage-amplifier-The-power-supply-VS-VS-VS.png)