Small bridge amplifier circuit diagram

The amplifier circuit utilizes the HA13118 IC, a Hitachi component designed to deliver 18 watts of output power. This integrated circuit operates as a Class AB amplifier.

The HA13118 IC is a versatile audio amplifier designed for high-fidelity applications, providing a balance between performance and efficiency. It features internal circuitry that allows it to operate in Class AB mode, which is known for its ability to deliver high output power with low distortion. The circuit typically includes input and feedback resistors, capacitors for stability and frequency response, and a power supply section capable of providing the necessary voltage and current for optimal performance.

In a typical configuration, the input signal is fed into the amplifier through a coupling capacitor to block any DC offset, ensuring that only the AC audio signal is amplified. The gain of the amplifier can be adjusted using external resistors, allowing for customization based on the specific application requirements. The output stage of the HA13118 is designed to drive speakers directly, with the capability to handle loads down to 4 ohms, making it suitable for various audio systems.

Thermal management is crucial in amplifier design, especially for Class AB amplifiers, which can generate significant heat. The HA13118 is equipped with thermal protection features to prevent damage due to overheating. Additionally, bypass capacitors are often placed close to the power supply pins of the IC to ensure stable operation and minimize noise.

Overall, the HA13118 IC amplifier circuit is an effective solution for audio amplification needs, providing reliable performance in a compact form factor. Proper PCB layout and component selection are essential to maximize the performance of the amplifier and minimize interference.Amplifier ic 18W using HA13118 IC amplifier 18 watt circuit is an IC number HA13118 Hitachi Hard. That the IC will be integrated amplifiers, class AB. And.. 🔗 External reference