A switching power amplifier with feedback for improving total harmonic distortion |
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| Authors: | Chia-Hsiung Kao Ping-Yu Tsai Wen-Pin Lin Yao-Jen Chuang |
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| Affiliation: | (1) National Sun Yat-Sen University, 70 Lien-hai Rd, Kaohsiung, 804, Taiwan; |
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| Abstract: | A high efficiency and low distortion and switching power amplifier is proposed. We use feedback to reduce the total harmonic
distortion (THD) and the DC output bias current. The experimental results show that the proposed circuit has 0.24% total harmonic
distortion and 91% power efficiency while the DC output bias current is 12 μA at 1.5 V supply voltage. |
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