High input voltage, low output voltage power supply design built with the MAX15046 step-down power supply controller

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Summary:

Design specifications and configuration

  • Input voltage: 18V to 36V
  • Output voltage: 1.2V
  • Output current: 13.4A
  • Output voltage ripple: 12mVP-P
  • Input voltage ripple: 180mVP-P
  • Switching frequency: 250kHz
  • Efficiency: VIN = 18V, efficiency is 82% at 13.4A output current; VIN = 36V, efficiency is 74% at 13.4A output current

MAX15046 buck power circuit schematic, FSW = 250kHz.

The reference design uses the MAX15046 step-down power supply, a two-layer board.

See the uploading documentation for details (click to download)

Audio Line Transformer

An Audio Line Transformer is a specialized type of transformer designed specifically for use in audio lines. It utilizes the principles of electromagnetic induction to transfer audio signals from one circuit to another without direct electrical connection, offering functions such as impedance matching, signal isolation, and in some cases, conversion between balanced and unbalanced audio signals.
Key Functions
Impedance Matching: Audio Line Transformers help to match the output impedance of one device with the input impedance of another, minimizing signal reflection and distortion, ensuring efficient and lossless signal transmission.
Signal Isolation: By electrically isolating the audio signal, these transformers prevent ground loops and noise interference caused by potential differences between different devices, enhancing the system's overall noise immunity.
Conversion between Balanced and Unbalanced Signals: Audio Line Transformers can convert between balanced and unbalanced audio signals, accommodating various audio system configurations and enhancing flexibility.

Audio Line Transformer,10W 6Ohm Audio Line Transformer,Audio Line Transformer 100V,Audio transformer for amplifier

Guang Er Zhong(Zhaoqing)Electronics Co., Ltd , https://www.geztransformer.com

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