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中文摘要：
分析了新型单周非线性PWM控制开关功率放大器存在的延时问题及由此引起的直流偏置问题。提出了电压补偿解决方案，给出了补偿电压计算公式。补偿前和补偿后系统仿真结果的比较表明，电压补偿方案不仅能有效地消除延时问题，同时还改善了功率放大器的总谐波畸变率（THD），验证了理论分析的正确性。
英文摘要：
It is analyzed the control delay of switching power amplifier with a new nonlinear PWM control and its effects on the DC offset A novel voltage compensation technique is proposed to improve this DC offset voltage. The design formula for computing compensation voltage is given. The amplifiers with and without compensation are analyzed and compared by simulation. The results show that the proposed compensation technique solves the control delay and reduces total harmonic distortion, which is consistent with the analysis.
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