LM4780 2x60W Power Amplifier

This is a 2x60W LM4780 Power Amplifier. The LM3886 was initially considered for this project due to its acclaim in previous designs. However, feedback suggested a need for a complete device. The LM3886 integrated circuit was difficult to source, and its cost was a significant factor. In this project, the LM4780 is utilized, which integrates two LM3886 amplifiers into a single unit, resulting in a complete amplifier solution. The LM4780 offers advantages such as lower acquisition costs compared to purchasing two separate LM3886 units. This project encompasses a complete amplifier system, including a pre-amplifier, power amplifier, and power supply, all designed for immediate use. The unit can be conveniently placed in a living space, and existing preamps or power amplifiers can be integrated into other projects.

The 2x60W LM4780 Power Amplifier circuit is designed to deliver high-quality audio output while maintaining efficiency and cost-effectiveness. The LM4780 integrates two LM3886 power amplifier chips, allowing for a compact design that simplifies the assembly process. This approach not only reduces the number of components required but also minimizes potential points of failure within the circuit.

The circuit schematic typically includes the following key components: the LM4780 integrated circuit, which serves as the main amplification element; passive components such as resistors and capacitors for biasing and filtering; and a power supply section that provides the necessary voltage and current to the amplifier. The power supply should be designed to deliver sufficient current to support the output power demands, usually requiring a dual voltage supply to accommodate both the positive and negative rails of the amplifier.

In addition to the main amplification stage, a pre-amplifier section may be included to boost the input signal before it reaches the LM4780. This pre-amplifier can be designed using discrete components or another integrated circuit, depending on the desired complexity and performance characteristics.

Thermal management is also a critical aspect of the design. The LM4780 will generate heat during operation, necessitating the use of adequate heat sinks and possibly active cooling solutions to ensure reliable operation. Proper layout and grounding techniques must be employed in the PCB design to minimize noise and ensure optimal performance.

Overall, the 2x60W LM4780 Power Amplifier represents a robust solution for audio amplification needs, combining performance, affordability, and ease of integration into various audio systems. This design can be particularly beneficial for DIY audio enthusiasts looking to create high-quality sound systems without excessive complexity or cost.Here`s a 2x60W LM4780 Power Amplifier. LM3886 is very interested in our project was the first project, and were acclaimed. But the feedback we receive from you, from scratch, we knew we should make a complete device. One reason for that, but hard to find and the LM3886 integrated into the original cost of a fact to be taken into consideration. In this project, in which hosts two LM3886 LM4780 integrated with Integration, ie, making a complete amplifier.

Advantageous LM4780 is an integrated, cost of both purchase price a?aca??ndan sahtesinin made ??of forged-not-at least we do not see, but also would have received only two LM3886 price, or even more cheaply. We mean the complete amplifier, pre-amplifier, power amplifier and power supply hosts, ready for use, kutulay?p living room you can put the head in a corner of the device.

If your hand if you have preamps or power amplifier, may be helpful in other projects 🔗 External reference