Class-D power amplifier and system with dynamic boost control output
The invention relates to a class-D power amplifier and system with dynamic boost control output. A power amplification power supply receiving module is used for receiving a boost power supply signal and outputting actual power amplification voltage according to the boost power supply signal, and com...
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| Main Authors | , |
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| Format | Patent |
| Language | Chinese English |
| Published |
26.11.2019
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| Subjects | |
| Online Access | Get full text |
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| Summary: | The invention relates to a class-D power amplifier and system with dynamic boost control output. A power amplification power supply receiving module is used for receiving a boost power supply signal and outputting actual power amplification voltage according to the boost power supply signal, and comprises an 8bit SAR analog-to-digital converter for detecting the power supply voltage in real time.The invention comprises a digital processing module. The module is used for receiving actual power amplifier voltage detection value and the digital audio signal, outputting an actual audio signal according to the actual output voltage detection value and the digital audio signal, and generating a dynamic boost control signal and a buffer delay audio signal according to the actual audio signal. The dynamic boost control signal is sent to an external boost module connected with the power amplifier power supply receiving module so as to control the external boost module to dynamically output a boost power supply signal. |
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| Bibliography: | Application Number: CN201910709512 |