140W Amplifier Circuit ( 2x 70 Watt ) Schematic Diagram

The Stereo Power Amplifier utilizes a 2x70Watt STA550 chip designed for audio power applications, featuring a BASH concept that allows connection to digital devices. This amplifier operates on a BTL (Bridge-Tied Load) system with a symmetrical power supply that includes a ground connection. The STA550 power amplifier employs output transistors integrated within the chip, optimized for high audio power efficiency. The output configuration of the STA550 is direct, without an AC coupling bridge, and maintains a zero offset. The amplification factor of the STA550 in the stereo power amplifier setup is +12 dB. Additionally, the 2x70Watt STA550 Stereo Power Amplifier incorporates temperature sensors for overheating protection and a current-limiting system to safeguard the amplifier. It also features standby and mute controls to manage the amplifier's silent or active modes.

The 2x70Watt STA550 Stereo Power Amplifier is designed to deliver high-quality audio performance with a power output of 70 Watts per channel. The BTL configuration allows for efficient use of the power supply, effectively doubling the output voltage to the load, which results in improved audio fidelity and dynamic range. The symmetrical power supply design minimizes noise and distortion, ensuring a clean audio signal.

The STA550 chip is engineered for high efficiency, allowing it to produce significant audio power while minimizing heat generation. This is particularly beneficial in applications where space is limited and thermal management is critical. The direct output configuration eliminates the need for coupling capacitors, which can introduce phase shifts and reduce overall audio quality.

The built-in temperature sensors continuously monitor the operating temperature of the amplifier. If the temperature exceeds safe limits, the protection circuitry automatically engages, preventing damage to the amplifier components. The current-limiting feature further enhances reliability by preventing excessive current draw that could lead to overheating or failure.

The amplifier's standby and mute controls provide versatility in operation, allowing users to easily switch between active and silent modes. This feature is particularly useful in home theater systems or audio setups where quick transitions between audio playback and silence are desired.

In summary, the 2x70Watt STA550 Stereo Power Amplifier is a robust and efficient audio amplification solution, equipped with advanced features that ensure high performance, reliability, and ease of use in various audio applications.Stereo Power Amplifier is 2x70Watt STA550 chip audio power with BASH concept that can be connected with digital perangkkat. 2x70Watt STA550 Stereo Power Amplifier is an amplifier with BTL system with symmetrical power supply with ground.

Power amplifier STA550 uses power output transistor which is on the chip and is set to produce a high efficienc y audio power. Power output on the STA550 is using the system without copling ac bridge (direct) and zero offset. Strengthening of the STA550 from stereo power amplifier is +12 dB. 2x70Watt STA550 Stereo Power Amplifier is equipped with temperature sensors for protection from overheating and current-limiting protection system for power amplifier. 2x70Watt STA550 Stereo Power Amplifier is equipped with standby and mute controls to regulate silent or active mode power amplifier.

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