I have been working on a circuit consists of 2 stage CE and class B amplifier network oscillator circuit. For transfer function shall each stage be calculated separately if how? Additionally how can it be done in simulation?(transfer function, oscillator parameters etc.)


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  • \$\begingroup\$ Your question appears to be (rephrased or paraphrased) how can I be a modern electronics engineer. Additionally, if there is something about your circuit that concerns you, you should post a schematic. \$\endgroup\$ – Andy aka Mar 26 at 8:24
  • \$\begingroup\$ What I meant to ask was in an oscillator circuit how can I calculate open/closed loop gain since there is no input voltage? I \$\endgroup\$ – oggy Mar 26 at 9:03
  • \$\begingroup\$ You can break the feedback at any point and treat it like a gain stage. Or read my answer here. \$\endgroup\$ – Andy aka Mar 26 at 9:05
  • \$\begingroup\$ It's a critically stable closed loop system. You need to identify the forward path; the feedback path; where the summing junction is, and then draw the block diagram. The input signal can be shown on the diagram, but this will be zero, nevertheless, including it will allow you to derive a transfer function. \$\endgroup\$ – Chu Mar 26 at 9:12

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