How do you design a noise cancelling circuit?

I mean, headphones or ear buds are capable of reducing the ambient background noise. Can it realize by circuit design or other approaches?

There are two general solutions to cancellation processes.

  • The simplest is to use a feedback loop with a microphone inside the headphones. The feedback attempts to minimize the sound level at the microphone by producing sound that cancels ambient.
  • The second uses digital sampling for repetitive sounds like engine noise and produces a cancelling sound.

Read More: Consumer Electronics

#PCB Design

Oliver Smith

Oliver Smith

Oliver is an experienced electronics engineer skilled in PCB design, analog circuits, embedded systems, and prototyping. His deep knowledge spans schematic capture, firmware coding, simulation, layout, testing, and troubleshooting. Oliver excels at taking projects from concept to mass production using his electrical design talents and mechanical aptitude.
Oliver Smith

Oliver Smith

Oliver is an experienced electronics engineer skilled in PCB design, analog circuits, embedded systems, and prototyping. His deep knowledge spans schematic capture, firmware coding, simulation, layout, testing, and troubleshooting. Oliver excels at taking projects from concept to mass production using his electrical design talents and mechanical aptitude.

What Others Are Asking

Are there any standard materials used to cover PCB SMT pads?

I have a PCB that was poorly designed and there is a ground pad that is too close to a signal pad. As a result, the signal pad on the surface mount component will short to ground. I was looking to use some ink or other material to cover the ground pad. The pads are too small to fit Kapton tape. Are there any standard materials used to cover PCB SMT pads?

Do electronics distributers test each component before sending them out?

I’m trying to decide whether to order components direct from manufacturers in China or from distributors in the US. If I have to test each component either way, I’m not sure if it’s a counterfeit, especially when prices are 100x more expensive from distributors.

Read Detailed Advice From Blog Articles

How to Achieve Target PCB Impedance Control
Ryan Chan

How to Achieve Target PCB Impedance Control?

As printed circuit boards become smaller and faster, controlling impedance is crucial for managing signal integrity. With circuits operating in the GHz range, even signals

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