Ch04 Topic 07 - Collector-to-Base Feedback Bias
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Purpose
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Use the collector voltage itself to reduce base drive when collector current rises, creating a simple stabilising DC feedback loop.

Open in RFspice
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1. Open ACDSPICE_Ch04_T07_Collector_Feedback_Bias.rfspice.json.
2. Run the analyses already entered in the Analysis box.
3. Plot the nodes/currents named in expected_results.txt.
4. Compare the result with the hand calculation before changing values.

Files
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- ACDSPICE_Ch04_T07_Collector_Feedback_Bias.rfspice.json: native RFspice schematic/project JSON.
- ACDSPICE_Ch04_T07_Collector_Feedback_Bias.cir: corresponding plain SPICE netlist.
- expected_results.txt: hand checks and expected trends.
- models/: local model library used by this worked example.

Model note
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The transistor models supplied with this course are educational representative models. They are intended to teach parameter-to-circuit relationships. Use the selected manufacturer's current datasheet and production SPICE model for final hardware correlation.
