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Assistance with 8th order Butterworth notch filter circuit

I implemented a guitar stomp box circuit several years ago. It eliminates 50-60Hz hum for single-coil guitar pick-ups. I implemented and simulated this circuit in LTSpice. I then had a design shop convert the Spice circuit to Altium for fabrication and assembly. I recently had a prototype built from the Altium files. It does not work properly. It was not assembled at an assembly house; it was done by hand. The circuit isn't working properly. Is the circuit incorrect or did we botch the hand assembly?

Project:

1. Compare the Spice source code with the Altium schematic. Is the translation faithful? There are 20 op-amps and almost 100 caps and resistors. I checked the translation 3 times. I *think* it is clean, but I could be wrong. If there is a translation error(s) please identify it/them.

2. Please review the corrected circuit. Can it be optimized for BOM cost? I used a notch filter. Should I have used an HPF? Can the circuit be improved?

3. Based on (1) and (2), please update the Altium design and generate the fabrication and assembly files for the project.

I designed this circuit when I could see. I am now blind and can't take the project any further.

You will need access to Altium and Spice for this project.

Habilidades: Layout PCB, Eletrônica, Engenharia Elétrica, Design de Circuito

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Acerca do Empregador:
( 1 comentário ) Seattle, United States

ID do Projeto: #31827538

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avigupta0061

Best Altium Design Expert at your doorstep! Dear Client, We can update Circuit and Prototype in "Altium" and generate the fabrication and assembly files for you. We will need both the circuit design and Prototype Desig Mais

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13 freelancers estão ofertando em média $279 nesse trabalho

sagradoamicus

Hi, I have almost 13 years of experience. I have read the details and have a few questions. Please get back to me to discuss it further. Thanks,

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liveexperts123

Hi there,I'm biddin on your project "Assistance with 8th order Butterworth notch filter circuit"Electrical Engineering, PCB Layout, Circuit Design and Electronics I implemented a guitar stomp box circuit several years Mais

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WorldOfScience

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marcus165

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