Questions tagged [ac-signal]

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What wrong with my Bias AC Voltage by Opamp's circuit, LTSpice?

I need measure AC 230V 50Hz and use transformer current type. Below is my schematic and simulator result. The schematic create by easyEDA, they use LTSpice to simulate circuit. I need signal swing ...
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Measuring AC signals from sensors

I have a non invasive current sensor SCT 013-030 and I connected it to an AVR mcu using this circuit below (circuit 1). Circuit 1. simulate this circuit – Schematic created using CircuitLab ...