Power Amplifier Thermal Solution

Power Amplifier Thermal Solution

Amplifier introduction:

The power amplifier, commonly known as “amplifier”, is the most basic equipment in the audio system. Its task is to amplify the weak electrical signal from the signal source (from the mixer in the professional audio system) to drive the speaker to produce sound.
The power amplifier is the largest family of all kinds of audio equipment. Its function is to amplify the weaker signal input by the audio source equipment and generate enough current to drive the speaker to reproduce the sound. Due to the consideration of power, impedance, distortion, dynamics, as well as different use ranges and control and adjustment functions, different power amplifiers have different internal signal processing, circuit design and production processes.

Power Amplifier Thermal Solution

“Professional power amplifier” is generally used for the amplification of conferences, performances, halls, halls, venues, and halls. The design is based on high output power, perfect protection circuit and good heat dissipation. Therefore, in order to manufacture high-quality power amplifier products, power amplifier manufacturers will use thermal interface materials and adhesive material solutions in the production process.

Glue requirements for amplifiers:

  1. High initial strength;
  2. Strong adhesion to components;
  3. Excellent heat dissipation for heating components;
  4. Environmental protection, non-toxic, with routine testing certification and qualifications;
  5. Circuit board insulation, moisture-proof, dust-proof, mildew-proof, salt spray resistance, etc.
thermal pad
thermal

Glue scheme for power amplifier:

Glue dots for amplifiersGlue function categoryAdhesive Solution Features
heating elementThermal grease, thermal silicone sheetIt has excellent thermal conductivity, heat dissipation, electrical, insulation, moisture-proof, shock-proof, and aging resistance, and can work for a long time in the temperature range of -40℃~200℃
border sealsealantHigh initial strength, specific performance wear resistance, puncture resistance, corrosion resistance, rolling resistance, flammable, non-polluting, insulating
Electronic Componentsfixing glueStrong bonding ability, fast curing speed, resistance to alternating heat and cold, good electrical insulation, excellent acid and alkali resistance, aging resistance, UV resistance, no solvent, no pollution, no corrosion, easy to use
PCB circuit boardThree-proof glueIt has excellent insulation, moisture-proof, anti-leakage, shock-proof, dust-proof, anti-corrosion, anti-aging, corona resistance and other properties

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