Linear Amplifier Design for Ham Radio
0:00
Work completed
- Project description updated with LPF bank and fan control details.
- Mermaid system architecture diagram added under the “System Architecture” property.
- Major ICs placed:
- Other active components reviewed (no discrete transistor needed with dedicated fan driver).
Remaining tasks
5. Fetch ULN2003A quiescent supply current and set project property.
6. Fetch FAN3122CMX-F085 VCC current and set project property.
7. Add supporting passives: decoupling caps, flyback diodes, resistors.
8. Place 2-pin fan header.
9. Wire nets:
- LPF_CTRL → relay driver inputs/coils + flyback diodes.
- PROT_CTRL → fan driver input + flyback diode.
- Fan header power & control.
- Run ERC and label nets/components.
Success criteria status
- LPF pi filters not yet implemented → segmentation and 50 Ω matching pending.
- Fan header and overtemp control circuitry not yet placed or net-tied.
- ERC not run; no errors checked.
Next step
Pick and add the 5th-order Chebyshev pi filter components for each sub-band, then connect the relay coils and driver inputs to the LPF_CTRL net.
134 days
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