一种基于D 类功放的逆变电源设计

针对传统正弦波逆变电源设计中输出电压出现的线性及非线性失真问题,提出一种基于D类功率放大电路的正弦波逆变电源设计方法.分析传统逆变电源的缺点,根据A类、AB类功率放大电路的不足,采用基于IR公司的 D 类芯片 IRS2092S 为核心设计电路,并进行实验验证.结果表明:该方法不但能有效解决传统正弦波逆变电源间歇性感性负载的波形失真难题,而且具有良好的高效性和实用性.

A Design of Inverter Power Supply based on Class D Power Amplifier

For the problem that traditional output voltage of sine wave inverter has linear or nonlinear distortion, a design method class D power amplifier circuit based on sine wave inverter has been proposed. The shortcomings of traditional inverter such as class A, AB class power amplifier circuit have beenanalyzed. In terms of the shortcomings, circuit based on IR's class D chip IRS2092S core has been designed and verification experiments have beencarried out. The results show that the method not only can effectively solve the problem of intermittent inductance loads distortion in the traditional sine wave inverter, but also have efficiency and applicability.