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I am trying to simulate this circuit before setting it up on breadboard. I have downloaded this model for simulation, and set up the circuit.

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Transient simulation for vout:

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What am I missing here? I was expecting an amplified sinus wave. Is this because there is no load at the end of capacitor? If so how should I simulate it properly to see it before actually setting up the circuit?

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    \$\begingroup\$ Try reducing the sinewave amplitude to 0.05. \$\endgroup\$ Commented Nov 1, 2020 at 11:58
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    \$\begingroup\$ Are you feeding 5V sine in? That's like over 10 times over the limit. \$\endgroup\$ Commented Nov 1, 2020 at 12:00
  • \$\begingroup\$ You are right! Sorry there happened a typo I guess. I changed it and It works now thank you. \$\endgroup\$ Commented Nov 1, 2020 at 12:01
  • \$\begingroup\$ You are missing the load. Place like 8 ohms as load. \$\endgroup\$ Commented Nov 1, 2020 at 18:51
  • \$\begingroup\$ You could simulate the speaker by adding an 8 ohm resistor between the 250uf capacitor and ground. \$\endgroup\$ Commented May 14, 2022 at 14:07

1 Answer 1

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Input voltage range is too high. Limit is +/- 0.4V.

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