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Can use SMPS for amplifier?
An SMPS can come with whatever voltage outputs you desire, there are plenty of dual rail (positive and negative) supplies out there. If the SMPS is a good quality and quiet (check datasheet) then there is no reason you can’t use it to power your amp.
Does an amp need power supply?
Amplifiers require a DC (sometimes called rail) voltage to provide a constant power source which the amplifier can in turn use to amplify the input signal.
How does an amplifier get power?
An amplifier takes an input signal from a source, such as a laptop, turntable or CD player, and creates a larger copy of the original signal before it’s sent to the speakers. It gets the power to do this from your mains electricity, which is sent directly to the power supply within the amplifier.
Are car amplifiers AC or DC?
Car amplifiers are designed to use the direct current (DC) from the car’s battery and alternator for power. This is different from a home electrical system, which uses alternating current (AC) and provides 110 to 120 volts at a lower current.
What kind of amplifier is a tda7293?
The TDA7293 is a monolithic integrated circuit in Multiwatt15 package, intended for use as audio class AB amplifier in Hi-Fi field applications (Home Stereo, self powered loudspeakers, Top-class TV). Thanks to the wide voltage range and to the high out current capability it is able to sup-ply the highest power into both 4Ω and 8Ω loads.
What’s the maximum output of a tda7293 IC?
On both the pins, the maximum applicable range corresponds to the operating supply voltage. The assembly is similar to TDA7294, but this IC allows use power supply with higher values and thus has a higher output power can reach to 100 Watts.
What’s the difference between a DMOs and a tda7293?
Short-circuit protected (with no input signal applied) Modularity (several devices can easily be connected in parallel to drive very low impedances) DMOS Power Stage High Output Power up to 100W Music Power Some components needed to make the project amplifier TDA7293 vs. TDA7294.
Why are SMPS not good for audio amps?
One of the most important factors in the sound of an amp that I keep reading is the need for a very clean power supply. This clean power requirement typically disqualifies SMPS because of the high switching frequency required which would produce a lot of noise.