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<?xml-stylesheet type="text/xsl" href="https://e2echina.ti.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>放大器</title><link>https://e2echina.ti.com/support/amplifiers/</link><description /><dc:language>zh-CN</dc:language><generator>Telligent Community 13</generator><item><title>论坛文章:RE: LM393: 请问LM393可以支持±12V的电源电压吗？</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1096578/lm393-lm393-12v/3946752</link><pubDate>Thu, 01 Oct 2026 04:04:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:9d000a78-4772-4ca8-8b7c-d53d541f48fb</guid><dc:creator>Eirwen</dc:creator><description>已经收到了您的案例，调查需要些时间，感谢您的耐心等待。</description></item><item><title>论坛文章:RE: BUF802RGTEVM: BUF802芯片输出不平</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1093459/buf802rgtevm-buf802/3946745</link><pubDate>Wed, 30 Sep 2026 15:58:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:7907cb60-7307-463f-b62a-cd35f3892639</guid><dc:creator>Saket Goteti</dc:creator><description>你好， 问题解决了吗？ 问候， 萨克特</description><category domain="https://e2echina.ti.com/support/amplifiers/tags/ECTE">ECTE</category></item><item><title>论坛文章:LM393: 请问LM393可以支持±12V的电源电压吗？</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1096578/lm393-lm393-12v</link><pubDate>Wed, 30 Sep 2026 09:16:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:69facef2-8c6e-4b8c-9574-1ce5a87353fa</guid><dc:creator>Abner Ma</dc:creator><description>Part Number: LM393 工程师你好， 我们最近有一个需求是： MCU输出0-3.3V、占空比为50%的PWM信号（频率为100HZ），现在想将这个信号转换成&amp;#177;12V的PWM信号。我们计划将这个PWM输入到比较器的正，比较器的负输入一个1.65V的稳定电压（3.3V的一半），然后比较器的电源是&amp;#177;12V，希望输出&amp;#177;12V的PWM波。 1.请问这样使用比较器可以吗？ 2.有没有合适的比较器推荐？LM393可以吗？ 感谢。</description><category domain="https://e2echina.ti.com/support/amplifiers/tags/LM393">LM393</category></item><item><title>论坛文章:RE: TPA3112D1: Speaker AMP TPA3112D1</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1096547/tpa3112d1-speaker-amp-tpa3112d1/3946676</link><pubDate>Tue, 29 Sep 2026 06:50:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:703dccc0-0e59-4f76-aa92-65b802d181c8</guid><dc:creator>Alice</dc:creator><description>您好， 电路设计请参考评估板用户手册 TPA3112D1 Evaluation Module 在输出加TVS不常见，去掉TVS是什么情况。 TAS5760M: : Max output voltage - Audio forum - Audio - TI E2E support forums</description></item><item><title>论坛文章:TPA3112D1: Speaker AMP TPA3112D1</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1096547/tpa3112d1-speaker-amp-tpa3112d1</link><pubDate>Tue, 29 Sep 2026 06:48:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:d2805c45-3bdf-4054-a564-090de58b05aa</guid><dc:creator>Joyce Wu</dc:creator><description>Part Number: TPA3112D1 Our new product uses the TPA3112D1 IC, and the circuit design is shown in the diagram below. After trial production of 10 boards, we found short circuits in components at positions TS11 and TS12 on every board. What could be causing this? Please also help us confirm whether the circuit design is appropriate. Thank you.</description><category domain="https://e2echina.ti.com/support/amplifiers/tags/_E55D1A4EEA81A8521653_">工业自动化</category><category domain="https://e2echina.ti.com/support/amplifiers/tags/TPA3112D1">TPA3112D1</category><category domain="https://e2echina.ti.com/support/amplifiers/tags/TAS5760M">TAS5760M</category></item><item><title>论坛文章:RE: OPA4322: 多级高增益放大器使用OPA4322AIPWR出现震荡。</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1096529/opa4322-opa4322aipwr/3946672</link><pubDate>Tue, 29 Sep 2026 05:43:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:440ac4b6-8f84-445f-b698-5a0c68ac5ca2</guid><dc:creator>Daniel</dc:creator><description>您好 根据您分享的资料显示在多级放大过程中存在一个部分带来的震荡，建议通过以下工具来辅助您调整 仿真模型 https://www.ti.com.cn/lit/zip/SBOM888 辅助设计计算器 www.ti.com.cn/.../ANALOG-ENGINEER-CALC</description></item><item><title>论坛文章:RE: OPA4322: 多级高增益放大器使用OPA4322AIPWR出现震荡。</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1096529/opa4322-opa4322aipwr/3946668</link><pubDate>Tue, 29 Sep 2026 03:33:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:33bcf361-825c-4b0b-bcf8-39cfd44e76b6</guid><dc:creator>Feng Chi</dc:creator><description>您好 将输入接地后，总是能测量到杂波。以下是具体的测量结果 e2echina.ti.com/.../DOCX.docx</description></item><item><title>论坛文章:RE: INA333: INA333采集电阻性桥式传感器力信号</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1095538/ina333-ina333/3946664</link><pubDate>Tue, 29 Sep 2026 01:43:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:d6b8dbca-5ea9-48d9-b33d-438ee6997492</guid><dc:creator>Vivian Gao</dc:creator><description>在这里有解释，之前给您发的帖子里面也提的是这部分。</description></item><item><title>论坛文章:RE: OPA4322: 多级高增益放大器使用OPA4322AIPWR出现震荡。</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1096529/opa4322-opa4322aipwr/3946660</link><pubDate>Tue, 29 Sep 2026 01:06:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:f8de2340-09a4-4371-a8b9-446747fedd5d</guid><dc:creator>Daniel</dc:creator><description>您好 您可以尝试用干净的初始信号来验证，排除是电路带来的还是原始信号就存在。</description></item><item><title>论坛文章:RE: INA333: INA333采集电阻性桥式传感器力信号</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1095538/ina333-ina333/3946657</link><pubDate>Tue, 29 Sep 2026 01:01:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:1710b078-fa40-4877-b409-d596565bee98</guid><dc:creator>user1993031</dc:creator><description>整个规格书翻遍了，没有说的8MHz截止低通滤波相关描述。 另外，我想问的是这个滤波器是否会导致空间中的高频信号转换成直流，因为现象就是触摸外壳，直流值改变并稳定，松开后回到原值。没有内部RFI的同封装器件不存在这个问题。</description></item><item><title>论坛文章:RE: OPA4322: 多级高增益放大器使用OPA4322AIPWR出现震荡。</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1096529/opa4322-opa4322aipwr/3946648</link><pubDate>Mon, 28 Sep 2026 23:03:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:95c0e3a9-ec6d-4948-acf8-2063d8ce3c67</guid><dc:creator>Eirwen</dc:creator><description>已经收到了您的案例，调查需要些时间，感谢您的耐心等待。</description></item><item><title>论坛文章:OPA4322: 多级高增益放大器使用OPA4322AIPWR出现震荡。</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1096529/opa4322-opa4322aipwr</link><pubDate>Mon, 28 Sep 2026 10:37:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:bf1337e3-232f-4a85-9d11-192abb830b07</guid><dc:creator>Feng Chi</dc:creator><description>Part Number: OPA4322 我使用如图的电路图用来放大bgt24ltr11的IFI/Q输出，但是在第二级的输出测量到了110多kHz的震荡波形，是变形的正弦波。在最后一级测量出其放大后的波形。 上图是第一级输出 上图是第二级输出 上图是第三级输出</description><category domain="https://e2echina.ti.com/support/amplifiers/tags/_4B6DD58B8C544B6DCF91_">测试和测量</category><category domain="https://e2echina.ti.com/support/amplifiers/tags/OPA4322">OPA4322</category><category domain="https://e2echina.ti.com/support/amplifiers/tags/ANALOG_2D00_ENGINEER_2D00_CALC">ANALOG-ENGINEER-CALC</category></item><item><title>论坛文章:RE: OPA690: 用OPA690搭的电压跟随器存在明显震荡现象，请问是PCB哪里设计的有问题</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1096455/opa690-opa690-pcb/3946634</link><pubDate>Mon, 28 Sep 2026 06:40:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:f64bb229-1e97-4400-bc78-06048c4e9ddb</guid><dc:creator>Daniel</dc:creator><description>您好 您可以信任官方给出的layout指导，至于哪个才有最优的优化，以信号质量来评估。</description></item><item><title>论坛文章:RE: OPA690: 用OPA690搭的电压跟随器存在明显震荡现象，请问是PCB哪里设计的有问题</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1096455/opa690-opa690-pcb/3946633</link><pubDate>Mon, 28 Sep 2026 06:34:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:9bdf2a02-15b6-498a-9d3e-abba41c7d7ab</guid><dc:creator>HaoXuan huang</dc:creator><description>我参考这部分文档内容修改了一下铜皮，请问这样是否可以，还是说第二版更好一点</description></item><item><title>论坛文章:RE: BUF802RGTEVM: 如何在BUF802前端加入多个衰减电路，同时保证带内平坦度和1M的输入阻抗呢？</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1095592/buf802rgtevm-buf802-1m/3946612</link><pubDate>Mon, 28 Sep 2026 02:03:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:a77336dc-2a20-440c-9f6b-8aed353722a3</guid><dc:creator>Daniel</dc:creator><description>您好 根据您的需求建议尝试参考以下工具和资料。 https://www.ti.com.cn/lit/zip/SBOMC43 官方仿真模型 https://www.ti.com.cn/tool/cn/TIDA-010133 以IC为基础的参考设计 来辅助您优化您的设计。</description></item><item><title>论坛文章:RE: OPA690: 用OPA690搭的电压跟随器存在明显震荡现象，请问是PCB哪里设计的有问题</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1096455/opa690-opa690-pcb/3946606</link><pubDate>Mon, 28 Sep 2026 01:37:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:c87b1004-0469-44c2-ae9a-8a3fc7b27aa2</guid><dc:creator>Daniel</dc:creator><description>您好 请您参考这部分布局说明。</description></item><item><title>论坛文章:RE: OPA690: 用OPA690搭的电压跟随器存在明显震荡现象，请问是PCB哪里设计的有问题</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1096455/opa690-opa690-pcb/3946603</link><pubDate>Sun, 27 Sep 2026 23:27:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:4a6758ce-636c-41c5-865f-7425c8dc233f</guid><dc:creator>Eirwen</dc:creator><description>已经收到了您的案例，调查需要些时间，感谢您的耐心等待。</description></item><item><title>论坛文章:OPA690: 用OPA690搭的电压跟随器存在明显震荡现象，请问是PCB哪里设计的有问题</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1096455/opa690-opa690-pcb</link><pubDate>Sat, 26 Sep 2026 04:37:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:809957b3-63ef-4d8e-9e10-994b226bf6e5</guid><dc:creator>HaoXuan huang</dc:creator><description>Part Number: OPA690 根据数据手册推荐，挖空了反馈引脚的铜皮，同时加了几个隔离电阻，但是实际使用时发现仍然存在自激振荡现象，在无信号输入情况下依然存在1Vpp以上的正弦输出信号，以下是我的旧版PCB 我怀疑是铜皮与走线的间隔不够导致，所以提升了走线与铜皮的间距，以下是新版的PCB： 请问以上设计中是否存在问题</description><category domain="https://e2echina.ti.com/support/amplifiers/tags/OPA690">OPA690</category><category domain="https://e2echina.ti.com/support/amplifiers/tags/_BF4F3A640F5F3575505BA74EC154_">便携式电子产品</category></item><item><title>论坛文章:RE: BUF802RGTEVM: 如何在BUF802前端加入多个衰减电路，同时保证带内平坦度和1M的输入阻抗呢？</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1095592/buf802rgtevm-buf802-1m/3943798</link><pubDate>Thu, 24 Sep 2026 22:56:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:35a9e719-b136-4057-9c6c-2b6a3eef0861</guid><dc:creator>Eirwen</dc:creator><description>已经收到了您的案例，调查需要些时间，感谢您的耐心等待。</description></item><item><title>论坛文章:BUF802RGTEVM: 如何在BUF802前端加入多个衰减电路，同时保证带内平坦度和1M的输入阻抗呢？</title><link>https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum/1095592/buf802rgtevm-buf802-1m</link><pubDate>Thu, 24 Sep 2026 07:36:00 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:23e41cce-e747-4ecd-87b6-216ea90e228f</guid><dc:creator>chunyu Lang</dc:creator><description>Part Number: BUF802RGTEVM Other Parts Discussed in Thread: BUF802 如何在BUF802前端加入多个衰减电路，同时保证带内平坦度和1M的输入阻抗呢？</description><category domain="https://e2echina.ti.com/support/amplifiers/tags/_4B6DD58B8C544B6DCF91_">测试和测量</category><category domain="https://e2echina.ti.com/support/amplifiers/tags/BUF802">BUF802</category><category domain="https://e2echina.ti.com/support/amplifiers/tags/TIDA_2D00_010133">TIDA-010133</category><category domain="https://e2echina.ti.com/support/amplifiers/tags/BUF802RGTEVM">BUF802RGTEVM</category></item></channel></rss>