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Can an audio amplifier amplify DC? - Electrical ...
https://electronics.stackexchange.com/questions/201545/can-an-audio-amplifier-amplify-dc
Usually, an audio amplifier will be capacitively-coupled at the input, which explicitly blocks DC. What you would typically use to drive 10 watts with a 50-100 kHz square wave is usually a LOT different from what you'd use to amplify audio (nominally 20 Hz to 20 kHz). We need to know a lot more about your proposed application. Share
Conversion of audio amp's AC coupled output to DC …
https://www.eevblog.com/forum/projects/conversion-of-audio-amps-ac-coupled-output-to-dc-coupled-output/
Conversion of audio amp's AC coupled output to DC coupled output « on: July 02, 2020, 03:12:38 pm » Hi, I want to modify the output of an audio amplifier I got from Amazon so that it has a DC component (doesn't matter how much, as long as the AC signal says above GND.
noise - Why do some audio amps use AC while others use DC ...
https://sound.stackexchange.com/questions/46399/why-do-some-audio-amps-use-ac-while-others-use-dc
The AC cabling inside the amplifier that leads to the AC-DC conversion unit (either a transformer or an electronic converter) can act as a transmitter, potentially inducing e.g. a 50/60 Hz hum into the audio path, so you have to put shielding …
DC - DC Conversion | Analog Devices
https://www.analog.com/en/applications/markets/automotive-pavilion-home/vehicle-electrification/dc-dc-conversion.html
DC - DC Conversion. The DC-DC converter delivers power to the 12V vehicle network by converting power from a 48V or a HV battery pack; impacting vehicle safety, range and cost. Analog Devices provide a wide range of solutions for 48V and high voltage DC- DC Conversion Topologies: High voltage data-isolators and Isolated gate drivers, with ...
Audio power supply using DC-DC converter | Physics Forums
https://www.physicsforums.com/threads/audio-power-supply-using-dc-dc-converter.701945/
From that you can select an appropriate power amplifier supply. The voltage needed will be V = Squareroot (W*R). The current will be I = V / R. As an example, for an R=4 ohm speaker at W=100 watt, it will require a supply voltage of. V = Sqrt (100*4) = 20 volts. The current in the speaker will be I = 20 / 4 = 5 amps.
how to convert Audio signal to DC usable for ADC : electronics
https://www.reddit.com/r/electronics/comments/11q25m/how_to_convert_audio_signal_to_dc_usable_for_adc/
how to convert Audio signal to DC usable for ADC hello guys. im trying to convert an audio signal to dc voltage i can use with my arduino's ADC, its only capable of +5v and -0.3v max. im going to read the signal with arduino and activate leds.
DC Audio
https://www.dcsoundlab.com/
DC-80 Direct Conversion Receiver for 80 Meters
http://www.ke3ij.com/DC-80.htm
With all that audio gain, what little 120Hz ripple residue there is, riding on that "pure" DC output, gets highly amplified by the receiver's audio stages.) 3) put "common-mode choke" toroids in the DC power leads to present a high impedance "open circuit" path to the common-mode hum energy (didn't work very well when I tried it)
Project: Converting Audio to 0-4VDC Signal for ...
https://forum.allaboutcircuits.com/threads/project-converting-audio-to-0-4vdc-signal-for-animatronics.44738/
The op amp output is sent to an envelope follower which is a simple RC circuit to smooth out the remaining audio oscillations. I used a Schottky diode to minimize DC signal loss. There is also an audio amplifier circuit based on the old standby LM386 on the board as well. Additionally, I planned on using the two separate channels of a stereo ...
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