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@ericfont

ericfont/circuit-20251119-2055.svg

Created November 20, 2025 01:54
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feedback integration with 4th-order sallen-key lowpass ~100kHz cutoff
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circuit-20251119-2055.svg
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@ericfont
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ericfont commented Nov 20, 2025

sim

not the best:
image

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ericfont commented Nov 20, 2025

image

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ericfont commented Nov 20, 2025

image

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ericfont commented Nov 20, 2025

5kohm instead

image

circuit-20251119-2110

400kHz oscillation...very good:
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ericfont commented Nov 20, 2025

8.2kohm for 260kHz oscillation

image image

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