Hi tjallison,
Welcome to EasyEDA.
You will find a sinewave Voltage source in the EasyEDA Libs.
To find out how to use it, please see:
<https://easyeda.com/Doc/Simulation-eBook/Configuring-Voltage-and-Current-Sources.htm#ConfiguringVoltageandCurrentSources>
Can you share a copy of your circuit and any relevant info or notes so we can maybe help you out?
Have you had a look through the rest of our Simulation eBook to get some guidance on how to set up simulations?
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