| 便携式D类音频功率放大器的设计与实现 |
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| 引用本文： | 刘青,戴佩. 便携式D类音频功率放大器的设计与实现[J]. 国外电子测量技术, 2013, 0(10): 38-41 |
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| 作者姓名： | 刘青 戴佩 |
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| 作者单位： | [1]钟山职业技术学院,南京210049 [2]精恒科技有限公司,东莞523000 |
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| 摘 要： | 设计了一款2×80W的D类功放，具有交直流2路电源电路，外出时可随身携带，频响范围在20Hz~30kHz，额定工作电压220V时，静态功率损耗为18w，满功率损耗为186W，失真度在0．1％以下，效率提高到60％以上。
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| 关 键 词： | D类音频功率放大器 EMC安规电路PWM调制器 滤波电路 |
Design and implementation of portable class D audio power amplifier |
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| Liu Qing Dai Pei. Design and implementation of portable class D audio power amplifier[J]. Foreign Electronic Measurement Technology, 2013, 0(10): 38-41 |
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| Authors: | Liu Qing Dai Pei |
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| Affiliation: | Liu Qing Dai Pei (1. Zhongshan Vocational College, Nanjing 210049, China 2. Jingheng Science ＆ Technology Co. Ltd, Dongwan 523000, China) |
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| Abstract: | This paper introduces the design of a 2 × 80 W class D power amplifier. The amplifier has the AC and DC two- way power, can carry out, frequency response in the range of 20Hz to 30 kHz,, rated voltage 220 V, static power loss is 18 W, full power loss for 186 W, distortion under 0.1%,the efficiency increased to more than 60%. |
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| Keywords: | class D audio power amplifier EMC safety circuit PWM modulating device filter circuit |
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