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Tracking Power Supply for Car Audio Amplifiers …

https://www.ti.com/lit/ug/tidudu1/tidudu1.pdf

Automotive Tracking Power Supply Reference Design for Audio Amplifiers 1 System Description This reference design is a dual-phase boost using the LM25112-Q1 boost controller for automotive audio applications. This design can operate from 9 V to 16 V. The design has an adjustable output of 16 V to 40

How Does a Car Audio Amplifier Work – The Power Supply

https://www.bestcaraudio.com/how-does-a-car-audio-amplifier-work-the-power-supply/

Making Power for Your Speakers. To supply enough power to your speakers to produce music at realistic listening levels, we need a lot of voltage. For standard 4-ohm speakers, it takes a peak-to-peak voltage of almost 60 volts to deliver about 100 watts to your speaker. In most amplifiers, this voltage is configured as +30V and -30V, relative to the ground reference …

DC Power Supplies - Basic Car Audio Electronics

http://www.bcae1.com/pwrsupdc.htm

For those who want to use a car audio amplifier in their home... Using all car audio equipment: This diagram shows how the power and ground connections would be made to the power supply. You notice that there are fuses on all of the wires that are connected to the power supply's positive terminal. These are ABSOLUTELY necessary. It is just as easy to start an electrical fire …

Switchmode Power Supply For Car Audio

https://sound-au.com/project89.htm

For the tests, use a big 12V to 13.8V power supply, with current limiting if possible and capable of delivering at least 10 to 20 amperes (see project 77). If you don't have that, a PC computer PSU will work (although you won't get more than 80-90W, but it is enough for testing purposes and almost indestructible).

Switching Power Supply - Basic Car Audio Electronics

http://www.bcae1.com/swpowsup.htm

In a typical design, Point "b" is connected to a source of power, such as the vehicle's battery. Points "a" and "c" will be alternately connected/driven to ground at a high frequency (somewhat like an electronic see-saw). MOSFETswitching transistors are used to drive the transformer windings to ground in most modern amplifiers.

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