Weekly PULSE Issue
Kaivan Karimi – Dir. of Global Strategy, Microcontroller Group, at Freescale
Featured Articles
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Placeshifting Video to View it Anytime, Anywhere
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Reactive Power Part 3: Voltage and Var Solutions
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Reactive Power Part 2: Problems with Highly Compensated Power...
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Reactive Power Part 1: What it is; why it is important
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VHDL 101 - From Logic Gates to Adders
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Community Energy Storage for Reliability
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The Raspberry Pi Part IV : Setting up a Simple Server
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Strain-Gauge Sensors
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DDR4 Design Considerations
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Making the Motherboard Connection
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The Raspberry Pi Part III: Installing Arch Linux ARM
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Research Into and Uses of Terahertz Switching-Speed Transistors
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Design & Analysis of TDC Converter Architectures - Part 2
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Design & Analysis of TDC Converter Architectures in 80nm CMOS...
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Picking Components With Confidence
Circuit's Blog :
Return to BlogLM3886 Based 300W Audio Power Amplifier Project
Figure 1
Full audio power amplifier project based on six LM3886 high performance ICs providing 300 watts of power into 4 Ohm speakers.
Design uses two PCBs and each of them is holding three paralleled LM3886’s. To bridge these boards and balance the input signal, DRV134 based another circuitry is used.
SMD components are chosen to be able to design the layouts easier and make the signal paths shorter. However, PCBs become more compact and easy to built in this way.
A trimmer is provided to adjust DC offset. Large heatsinks and quality components, especially capacitors, are used. The amplifier requires a transformer rated at 2×25V 500VA.
Clear step by step explanation and very quality photos are provided in the project page.
3 years ago: Dimana saya bisa mendapatkan pcbnya, karena saya tertarik buat mencobanya
Terimakasih
Gofar
3 years ago: Excelent project, please sharing PCB layout.
Thanks regard.