Title: Part No. TDA7294
Introduction:
The TDA7294 is a monolithic incorporated circuit in Multiwatt15 suite, intended for use as audio class AB amplifier in Hi-Fi field products. Thanks to the wide voltage range and to the high out current capacity it is able to deliver the highest power into both 4 Ω and 8 Ω loads even in existence of poor supply regulation, with high supply voltage rejection. The built-in muting function with turn on delay streamlines the remote operation preventing switching on-off noises.
Features:
Noise is very low
Distortion is very low
Thermal shutdown is present
Output power is high
Circuit Diagram:
If you want to boost or enhance a reasonably constant electric voltage, you can use an electromagnetic stratagem called a transformer. Most of us have a house full of transformers without recognizing it. They’re mostly used to drive low-voltage things such as MP3 players and laptop from higher-voltage local power outlets, They’re also used in electricity substations to transform mostly high-voltage electricity from power plants to the much lower voltages that homes and offices need. In all these cases, transformers are turning large voltages into smaller voltages, they are step up and step-down transformers. if the input current is merely a brief pulse of electricity intended to switch something on or off, you can use an electromagnetic relay to amplify it. A relay uses electromagnets to combine two electric circuits together so that when a small current flows across one of the circuits, a much bigger current flows through the other.
Applications:
Home Stereo,
Self-powered loudspeakers
Top-class TV
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