https://blog.youkuaiyun.com/IOTBOTzh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/IOTBOT/article/details/169650402https://blog.youkuaiyun.com/IOTBOT/article/details/169650402IOTBOTMon, 02 Nov 2026 16:15:02 +0800https://blog.youkuaiyun.com/IOTBOT/article/details/154393809https://blog.youkuaiyun.com/IOTBOT/article/details/154393809IOTBOTTue, 04 Nov 2025 16:46:05 +0800https://blog.youkuaiyun.com/IOTBOT/article/details/153877138https://blog.youkuaiyun.com/IOTBOT/article/details/153877138IOTBOTThu, 30 Oct 2025 13:35:34 +0800https://blog.youkuaiyun.com/IOTBOT/article/details/144608982https://blog.youkuaiyun.com/IOTBOT/article/details/144608982IOTBOTFri, 20 Dec 2024 14:07:55 +0800https://blog.youkuaiyun.com/IOTBOT/article/details/144552525https://blog.youkuaiyun.com/IOTBOT/article/details/144552525IOTBOTThu, 19 Dec 2024 19:55:11 +0800https://blog.youkuaiyun.com/IOTBOT/article/details/143191164https://blog.youkuaiyun.com/IOTBOT/article/details/143191164IOTBOTThu, 24 Oct 2024 19:26:45 +0800https://blog.youkuaiyun.com/IOTBOT/article/details/142828416https://blog.youkuaiyun.com/IOTBOT/article/details/142828416IOTBOTTue, 15 Oct 2024 16:08:07 +0800https://blog.youkuaiyun.com/IOTBOT/article/details/141815871https://blog.youkuaiyun.com/IOTBOT/article/details/141815871IOTBOTMon, 02 Sep 2024 13:32:45 +0800https://blog.youkuaiyun.com/IOTBOT/article/details/141590232https://blog.youkuaiyun.com/IOTBOT/article/details/141590232IOTBOTFri, 30 Aug 2024 13:38:51 +0800https://blog.youkuaiyun.com/IOTBOT/article/details/141464922https://blog.youkuaiyun.com/IOTBOT/article/details/141464922IOTBOTFri, 23 Aug 2024 18:11:20 +0800https://blog.youkuaiyun.com/IOTBOT/article/details/141391684https://blog.youkuaiyun.com/IOTBOT/article/details/141391684IOTBOTWed, 21 Aug 2024 13:54:01 +0800https://blog.youkuaiyun.com/IOTBOT/article/details/141356609https://blog.youkuaiyun.com/IOTBOT/article/details/141356609IOTBOTTue, 20 Aug 2024 19:30:54 +08001mA来的，偏置电阻Rbias的目的是为了给TL431足够的静态电流Ika，Ika=Iled+Irbias（注：Zc这个网络里面是有电容隔直的，因此静态电流为0，不用计算该分支的电流），Iled是动态变化的，可能会很小，因此我们只需要保证Rbias的电流Irbias>1mA足够大，那么就可以保障Ika>1mA。不过我们需要知道，Rlower越小，那么电流也就越大，功耗越高，很多产品都对静态功耗有要求，因此Rlower需要尽量选大一点的阻值，所以常规都是10K左右的阻值。]]>https://blog.youkuaiyun.com/IOTBOT/article/details/141329935https://blog.youkuaiyun.com/IOTBOT/article/details/141329935IOTBOTMon, 19 Aug 2024 17:31:26 +0800https://blog.youkuaiyun.com/IOTBOT/article/details/140791109https://blog.youkuaiyun.com/IOTBOT/article/details/140791109IOTBOTTue, 30 Jul 2024 18:39:12 +0800https://blog.youkuaiyun.com/IOTBOT/article/details/140706530https://blog.youkuaiyun.com/IOTBOT/article/details/140706530IOTBOTFri, 26 Jul 2024 10:05:09 +0800https://blog.youkuaiyun.com/IOTBOT/article/details/138541200https://blog.youkuaiyun.com/IOTBOT/article/details/138541200IOTBOTThu, 09 May 2024 16:14:56 +0800https://blog.youkuaiyun.com/IOTBOT/article/details/136902954https://blog.youkuaiyun.com/IOTBOT/article/details/136902954IOTBOTThu, 21 Mar 2024 16:21:39 +0800https://blog.youkuaiyun.com/IOTBOT/article/details/135289433https://blog.youkuaiyun.com/IOTBOT/article/details/135289433IOTBOTFri, 29 Dec 2023 13:56:35 +0800https://blog.youkuaiyun.com/IOTBOT/article/details/134979633https://blog.youkuaiyun.com/IOTBOT/article/details/134979633IOTBOTWed, 13 Dec 2023 19:25:17 +0800https://blog.youkuaiyun.com/IOTBOT/article/details/134829702https://blog.youkuaiyun.com/IOTBOT/article/details/134829702IOTBOTWed, 06 Dec 2023 14:14:37 +0800