数字功率放大器过流保护电路的设计

2016 International Conference on Emerging Trends in Electrical Electronics & Sustainable Energy Systems (ICETEESES) Pub Date : 2016-03-11 DOI:10.1109/ICETEESES.2016.7581367

A. K. Saxena, Amit Kumar

{"title":"数字功率放大器过流保护电路的设计","authors":"A. K. Saxena, Amit Kumar","doi":"10.1109/ICETEESES.2016.7581367","DOIUrl":null,"url":null,"abstract":"This work shows a modified excess current preservation circuitry for digital power amplifier. Excess current is a condition when a greater than required current occurs, which will be dangerous for our instrument. This preservation circuitry is useful to cut off the output buffer when two output pins short-circuit to Vcc, short-circuit to Gnd or short-circuit to one another. Circuit has maximum output power of 2.85Watt and efficiency of 95% when load is 4Ohm when Vcc is 5Volt. This circuitry has a threshold of 160mA.","PeriodicalId":322442,"journal":{"name":"2016 International Conference on Emerging Trends in Electrical Electronics & Sustainable Energy Systems (ICETEESES)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Design of over-current protection circuit for digital power amplifier\",\"authors\":\"A. K. Saxena, Amit Kumar\",\"doi\":\"10.1109/ICETEESES.2016.7581367\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This work shows a modified excess current preservation circuitry for digital power amplifier. Excess current is a condition when a greater than required current occurs, which will be dangerous for our instrument. This preservation circuitry is useful to cut off the output buffer when two output pins short-circuit to Vcc, short-circuit to Gnd or short-circuit to one another. Circuit has maximum output power of 2.85Watt and efficiency of 95% when load is 4Ohm when Vcc is 5Volt. This circuitry has a threshold of 160mA.\",\"PeriodicalId\":322442,\"journal\":{\"name\":\"2016 International Conference on Emerging Trends in Electrical Electronics & Sustainable Energy Systems (ICETEESES)\",\"volume\":\"100 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-03-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2016 International Conference on Emerging Trends in Electrical Electronics & Sustainable Energy Systems (ICETEESES)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICETEESES.2016.7581367\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 International Conference on Emerging Trends in Electrical Electronics & Sustainable Energy Systems (ICETEESES)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICETEESES.2016.7581367","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 1

摘要

本文提出了一种改进的数字功率放大器过流保存电路。电流过大是指电流大于要求的情况，这对我们的仪器来说是危险的。当两个输出引脚短路到Vcc、短路到地或彼此短路时，这种保护电路可以有效地切断输出缓冲区。当负载为4Ohm，电压为5v时，电路的最大输出功率为2.85 w，效率为95%。该电路的阈值为160mA。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Design of over-current protection circuit for digital power amplifier

This work shows a modified excess current preservation circuitry for digital power amplifier. Excess current is a condition when a greater than required current occurs, which will be dangerous for our instrument. This preservation circuitry is useful to cut off the output buffer when two output pins short-circuit to Vcc, short-circuit to Gnd or short-circuit to one another. Circuit has maximum output power of 2.85Watt and efficiency of 95% when load is 4Ohm when Vcc is 5Volt. This circuitry has a threshold of 160mA.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

2016 International Conference on Emerging Trends in Electrical Electronics & Sustainable Energy Systems (ICETEESES)

自引率

0.00%

发文量