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audio - DC blocking capacitor - Electrical Engineering ...
https://electronics.stackexchange.com/questions/94135/dc-blocking-capacitor
The C10 is a DC coupling capacitor and the other components are used to filter out GSM noise. The amplifier is a 2W class D audio amplifier. The problem is that in certain situations, when a person touches the connector, a DC voltage is induced on the connector side of the C10 capacitor, which causes a whistling sound, although the only thing I can measure on the audio …
Blocking capacitors – PS Audio
https://www.psaudio.com/pauls-posts/blocking-capacitors/
May 20, 2020. by Paul McGowan. For many, many years we blocked unwanted signals and voltages with capacitors in the signal path. These were appropriately named, blocking capacitors, bits and bobs of circuitry designed to keep everything from DC to turntable rumble out of our stereo reproduction chains. And then one day we focused all our efforts on removing …
Question on input dc blocking capacitors | diyAudio
https://www.diyaudio.com/community/threads/question-on-input-dc-blocking-capacitors.225459/
Example: If the input-to-ground resistor in your amp is 10,000 Ohms, i.e. 10kOhms, and you want a 0.1 Hz cutoff frquency, then solve the equation for C and plug in the values: C = 1 / ( 2 π R f ) = 1 / ( 2 x 3.14 x 10000 x 0.1) = 0.001590 Farads. That's 1590 microFarads.
Question on input dc blocking capacitors | Page 3 | diyAudio
https://www.diyaudio.com/community/threads/question-on-input-dc-blocking-capacitors.225459/page-3
Also, I cannot see how using an input capacitor, even a "PPMF", would solve a problem caused by using an input capacitor. And if you are using a DC servo, then why have a blocking capacitor?? Also, it appears that your square wave is significantly distorted, maybe due to a blocking-capacitance value that is too low, or a resistance value that ...
DC Blocking for Powering Audio - KCC Scientific
https://www.kccscientific.com/dc-blocking-for-powering-audio/
DC (direct current) is the absolute enemy of power transformers. A vast majority of audio equipment (particularly high-end audio equipment) has an input power transformer. Any reasonably efficient power transformer is going to have high magnetic mu in order to minimize size and optimize primary to secondary coupling.
Question on input dc blocking capacitors | Page 2 | diyAudio
https://www.diyaudio.com/community/threads/question-on-input-dc-blocking-capacitors.225459/page-2
A DC blocking capacitor on the input of the LM4702 degraded sound quality. In multiple listening tests, with different participants and at various locations around the country, the negative effects of even the best film and foil polystyrene DC blocking input capacitors in the audio signal path was confirmed.
Choosing blocking capacitors it’s more than just values
https://www.rfmw.com/data/dli_v-series_techpaper_vol1_final2.pdf
block DC current and pass AC current. This makes capacitors a fundamental building block in Radio Frequency (RF) and microwave systems. They are often used to create filters, generate DC protection, and to create bypass networks. Often designers use rules of thumb or approximate equations to link capacitor values to final RF performance.
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