Power amplifier power supply classification

Power amplifier power supply classification

Power amplifier power supplies can be mainly divided into several categories: 1. According to the type of power supply: divided into AC power supply and DC power supply. The cost of AC power supply is low, but the output voltage is unstable; The DC power supply has stable output voltage and low noise, which performs better when used in audio amplifiers.

2. According to the working principle: divided into SMPS power supply (switch mode power supply) and linear power supply. SMPS power supply has high efficiency and small size, but may generate electromagnetic interference; Linear power supplies have good stability and low noise, but low efficiency and large size.

3. According to the characteristics of the application field: for example, the power supply of Class D power amplifier has high efficiency and low cost, and is suitable for occasions with high requirements for efficiency and cost.

There are various ways to classify power amplifiers, and different types of power amplifiers have their own advantages and disadvantages in terms of performance, efficiency, and size. When choosing an amplifier power supply, it is necessary to comprehensively consider factors such as specific application scenarios, equipment requirements, and cost budgets.