快速掌握喇叭保护电路 μPC1237 - 〓发烧音响专区〓 - 矿石收音机 …
2024年7月24日 · 目前市面上的1237，第4脚电压低于1.5V（有些1.7V）即刻动作进入保护状态。 1237不容易损坏，自装机出现问题95%源自装机者本身，装错元件或有极性元件装反。 工作 …
uPC1237 Amplifier/Speaker Protection Module - AUDIO …
2012年11月3日 · Using uPC1237 for over current protection allows the designer to drop the SOA limiting elements in the power amplifier. This will save space on the PCB, lower the cost of the …
UPC1237 | NEC | Audio Amplifiers | JLCPCB
UPC1237 from NEC - Audio Amplifiers is available for JLCPCB assembly, check the stock, pricing and datasheet, and let JLCPCB helps you assemble the part UPC1237 for free.
HIFIDIY论坛-请教 UPC1237 喇叭保护器的问题 - Powered by Discuz!
2020年11月5日 · 不知什么时候从佛山伟良那要了两块 UPC1237 喇叭保护器 PCB，前不久按照上面的丝印焊接元件，从旧保护器上拆下的欧姆龙12V继电器，电压是AC13-14V之间，工作的 …
UPC1237 Datasheet (PDF) - NEC
Part #: UPC1237. Download. File Size: 1MbKbytes. Page: 10 Pages. Description: PROTECTOR IC FOR STEREO POWER AMPLIFIER. Manufacturer: NEC.
HIFIDIY论坛-LM1875+uPC1237 PCB文件！ - Powered by Discuz!
2024年8月4日 · HIFIDIY论坛-LM1875双通道+uPC1237保护电路！ 带音量电位器，无前级！ PCB尺寸：110*95mm电源：AC18V*2送给喜欢的坛友！ 补充内容 (2020-2-24 …
HIFIDIY论坛-uPC1237HA规格书（译文）原创 - Powered by Discuz!
2020年11月5日 · HIFIDIY论坛-最近仔细研究了一下uPC1237，顺便翻译了其DataSheet，分享下。 文件比较大传不上来，需要的可留下邮箱。
DIYfan: Speaker protection with uPC1237 - Blogger
I was using IC uPC1237 for speaker protection in almost all my power amplifiers, because schematic is very easy to build with few external components. Here is the latest version of the …
UPC1237 footprint & symbol by NEC | SnapEDA
Download schematic symbols, PCB footprints, 3D Models, pinout & datasheet for the UPC1237 by NEC. 1GHz INPUT DIVIDE BY 2 - 4 - 8 PRESCALER IC FOR PORTABLE SYSTEMS. …
UPC1237 Datasheet (PDF) - Renesas Technology Corp
Part #: UPC1237. Download. File Size: 1MbKbytes. Page: 12 Pages. Description: BIPOLAR ANALOG INTEGRATED CIRCUITS. Manufacturer: Renesas Technology Corp.
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