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EETimes - Audio amplifier power supply design - Part 1 ...
https://www.eetimes.com/audio-amplifier-power-supply-design-part-1-power-supply-types-transformer-considerations/
Power-Supply Technologies There are three principal ways to power an amplifier: 1. a simple unregulated power supply consisting of transformer, rectifiers, and reservoir capacitors; 2. a linear regulated power supply; 3. a switch-mode power supply.
AN-1849 An Audio Amplifier Power Supply Design …
https://www.ti.com/lit/an/snaa057c/snaa057c.pdf
This application note covers the design of a ±72-V unregulated power supply specifically for audio amplifiers. The power supply is an unregulated design with an option to allow connection to either 120-V or 240-V mains. The design uses toroidal transformers, a fully integrated bridge, and various rail capacitors for
Audio amplifier power supply design - Part 1: Power …
https://www.edn.com/audio-amplifier-power-supply-design-part-1-power-supply-types-transformer-considerations/
Power-Supply Technologies There are three principal ways to power an amplifier: 1. a simple unregulated power supply consisting of transformer, rectifiers, and reservoir capacitors; 2. a linear regulated power supply; 3. a switch-mode power supply.
Linear Power Supply Design - The Audio Pages (Main Index)
https://sound-au.com/power-supplies.htm
Power Supplies – BuildAudioAmps
http://buildaudioamps.com/power-supplies/
Audio Power Amplifier - de Smith
https://www.desmith.net/NMdS/Data/Books%20and%20Manuals/Self%20-%20Audio%20Power%20Amp%20Design%20Handbook%204th%20Edn.pdf
Protection by power-supply shutdown Thermal protection Powering auxiliary circuitry Chapter 16 Grounding and practical matters Audio amplifier PCB design Crosstalk Rail induction distortion The mounting of output devices Single and double-sided PCBs Power supply PCB layout Power amplifier PCB layout details The audio PCB layout sequence ...
EETimes - Audio amplifier power supply design - Part 3 ...
https://www.eetimes.com/audio-amplifier-power-supply-design-part-3-power-supply-rail-rejection/
This is arranged to be about 3 V below the main heavy-current V- supply rail, being supplied from an extra tap on the mains transformer secondary winding, via an extra rectifier and a reservoir capacitor, as in Figure 9.19, which shows a typical power supply for an amplifier or amplifiers giving about 90 W into 8 O.
You Can DIY!: An Ecological Power Supply for Power Amplifiers
https://audioxpress.com/article/you-can-diy-an-ecological-power-supply-for-power-amplifiers
A Complete Guide to Design and Build a Hi-Fi LM3886 …
https://www.circuitbasics.com/design-hi-fi-audio-amplifier-lm3886/
Audio input and input ground wires from the input terminals to the amplifier PCBs; Three power supply wires (V+, V-, and power ground) connect the power supply’s DC output to each amplifier PCB. These wires should be thick, as short as possible, and twisted together tightly. I used 14 AWG, but anything larger than 18 AWG should be fine.
Elliott Sound Products - Audio Power Amplifier Design ...
https://sound-au.com/amp_design.htm
As an example, let's look at a typical power amplifier output stage. Assuming a power supply of ±35V, the maximum output current will be 35 / 8 = 4.375 Amps (an 8 ohm load is assumed). Since we know that there will be some losses in the driver / power transistor combination, we can safely assume a maximum (peak) current of 4A.
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