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HIGH POWER AUDIO AMPLIFIERS WITH SHORT …
http://www.cieri.net/Documenti/Altri%20marchi/Motorola%20-%20High%20Power%20Audio%20Amplifiers%20with%20Short-Circuit%20Protection%20(AN485%20-%201985).pdf
WITH SHORT CIRCUIT PROTECTION Prepared by Richard G. Ruehs Applications Engineering This application note describes a rec ommended circuit approach for high-performance audio amplifiers in the 35-W to 100-W rms power range. Circuitry is included which enables the amplifier to operate safely under any load condition including a continuous short.
Amplifier Short/Overload Protection Circuit - 2 Ideas ...
https://www.homemade-circuits.com/make-this-amplifier-shortoverload/
The following article explains 2 simple amplifier short circuit or overload protection circuits for safeguarding amplifiers from burning.. Why we need a Short Circuit Protection. While working with high power amplifier designs, two things become crucial, the protection of the amplifier and the protection of the speakers from an accidental over current …
EETimes - Over-current protection in audio amplifiers
https://www.eetimes.com/over-current-protection-in-audio-amplifiers/
There is an important distinction to be made with terminology between “over-current protection” and “short circuit protection”. In the case of an amplifier that has no input signal, the output terminals should be at the same potential, other than the amplifiers noise level and a possible small DC offset ” in both cases only a few mV ...
Audio Amplifier Protection Circuit - ElectroSchematics.com
https://www.electroschematics.com/amplifier-protector/
Audio Amplifier Protection Circuit. D Mohankumar. Now you can protect your HiFi amplifier from damage due to excess heat. This circuit will cut off the power to the amplifier board at the moment it senses a high temperature. It automatically connects power when the temperature returns to normal. The circuit uses an NTC Thermister as heat sensor ...
diy short circuit protection | diyAudio
https://www.diyaudio.com/community/threads/diy-short-circuit-protection.197468/
In This amp I am experimenting with control/protection circuits. Although this one is lower power ~30W(avg)/ch, it uses rail switches for the output stage. The circuit design allows for the entire output stage and drivers to be switched off in the event of a fault. I set this circuit up for a maximum allowable current of 6A.
A DC Fault Protection Circuit for Audio Amplifiers
http://www.geofex.com/Article_Folders/ampprot/dcprot.htm
There are people who will instinctively distrust any active solid state device in series with an audio signal. For those people, there are two possible alternatives: a relay to "short" the two power MOSFETs of the circuit above and a second MOSFET protection circuit that interrupts the DC power supply, not the speaker output.
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