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https://github.com/diodeinc/pcb.git
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Akhil Velagapudi
4413c9d4d9
* Hydrate V2 deps during migrate * Fix mixed hydrated package resolution * Simplify workspace discovery * Clean up workspace package discovery naming * Update stdlib formatting paths
26 lines
709 B
Plaintext
26 lines
709 B
Plaintext
* Resistor SPICE subcircuit
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* Model with parasitic series inductance and parallel capacitance
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*
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* Equivalent circuit:
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*
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* ┌── Cp ──┐
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* 1 ── ESL ──┤ ├── 2
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* └── R ───┘
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*
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* Behavior:
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* f << SRF: Z ≈ R (purely resistive)
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* f ~ SRF: Parallel resonance of L and Cp; impedance peaks for low R,
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* dips for high R
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* f >> SRF: Cp dominates (capacitive roll-off)
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*
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* Parameters:
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* RVAL - Resistance value in ohms
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* ESL - Parasitic series inductance (henries)
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* CP - Parasitic parallel capacitance (farads)
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.SUBCKT R 1 2 PARAMS: RVAL=1k ESL=0.5n CP=0.05p
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L_esl 1 mid {ESL}
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R1 mid 2 {RVAL}
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C_p mid 2 {CP}
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.ENDS R
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