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电路保护

Automotive CAN Bus Protection

Posted by Anindita Bhattacharya on 22 September 2021

Motor vehicles have gone through much progress since their inception. Modern cars include autonomous and semi-autonomous driving, anti-lock braking systems, electric power steering, forward and rear collision warning, lane assistant, autonomous parking assistant, and automatic emergency braking. Advanced features such as GPS navigation, interior mood lighting, surround-view camera, advanced infotainment system, active antenna are standard in most modern vehicles.

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Tags: Circuit Protection, Automotive

如果 TLP 分析不能保证符合 ESD 标准,为什么它很重要?

Posted by Zhen Li on 07 July 2021

在我加入 Semtech 的九年里,传输线脉冲 (TLP) 基础知识一直是新员工和客户最重要的培训主题之一。许多人问我们为什么总是强调 TLP 分析的重要性并广泛依赖它为我们的客户提供最佳解决方案。TLP 测试无法提供与行业标准(如 IEC 61000-4-2 或 ESDA/JEDEC JS-001)的规定完全相同的波形。它不保证 IC 或系统能通过所需静电放电 (ESD) 测试级别的抗扰性测试。始终建议在 TLP 测试完成后使用 ESD 发生器验证所有结果。那么,为什么我们不直接全部用 ESD 发生器进行测试?毕竟大多数工程师更熟悉和普遍接受 ESD 发生器。要回答这个问题,我认为务必要理解 TLP 不是 IEC 测试的替代或升级,而是作为一种分析工具对 ESD 枪测试进行补充。ESD 枪测试能告诉我们行或不行,但 TLP 可以帮助我们了解为什么和怎样优化。

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标签:电路保护

多少保护才足够?

Bill Russell 发表于 2021 年 1 月 14 日

在设计电子系统时,必须考虑经常被忽视和低估的保护问题。设计人员有时会努力满足某些标准,如 IEC 61000-4-2 的抗静电 (ESD) 要求。安装在恶劣工作环境中的设备,如远程仪表、机器人和电信系统,将需要更高水平的雷电防护。这些是显而易见的要求。其他保护问题包括短路、电压尖峰、污电力、电缆放电事件等。面对所有这些瞬态威胁,设计人员可能会不知所措,心怀疑问:为确保可靠的系统,多少保护措施才算足够?

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标签:电路保护

通过 ESD 防护预防无人机故障

Anindita Bhattacharya 发表于 2021 年 1 月 7 日

2020 年 9 月一场壮观的灯光秀火爆全网。其中采用了 3051 架无人机 (UAV),打破了无人机同时升空数量的世界纪录。除了上演迷人的灯光秀,无人机还越来越多地出现在许多实用的应用中,如工业制造检查、农作物检查、建筑工地检查、搜救行动、房地产摄影、森林火灾管理。无人机能在各种领域为人类提供宝贵的服务。

探索电路保护解决方案
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标签:电路保护

HDMI 2.0 的 ESD 防护

Posted by Anindita Bhattacharya on 08 October 2020

During the ongoing Coronavirus pandemic when we are mostly confined to our homes, we are spending an increased amount of time in front of screens. This includes attending online meetings, taking video calls, playing video games, watching television, and also working longer hours on our computers. A high quality audiovisual (AV) experience is a must these days and thanks to the high definition digital displays and high definition multimedia interfaces (HDMI), we are able to experience high speed, high resolution AV with higher pixel depths and greater aspect ratios.

EXPLORE HDMI PROTECTION SOLUTIONS

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标签:电路保护

USB 2.0 接口的 ESD 防护

Posted by Anindita Bhattacharya on 17 August 2020

Two decades ago, communication between a host computer and other devices was a complex and difficult task. The Universal Serial Bus (USB) was developed by a group of companies in 1994 to replace the multiple slow buses with a single bus that could exchange data between the host system and the peripherals. Following its release, USB quickly became very popular due to its ease of use and fast data transfer rate. Fast forward a little over two decades, all consumer electronic devices now come with integrated USB interfaces. The USB interface has evolved a lot to support modern demands of very high speed communication with host devices and their innovative features. Since its introduction, the USB specification has progressed as USB1.1, USB 2.0, USB 3.0, USB 3.1, USB 3.2 (Gen 1, Gen 2, Gen 2x2), USB Type-C supporting Thunderbolt, HDMI and DisplayPort via special modes, and finally, towards USB 4.

EXPLORE USB 2.0 PROTECTION SOLUTIONS
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标签:电路保护

USB Type-C 接口的 ESD 防护

Posted by Anindita Bhattacharya on 30 June 2020

Imagine this common scenario: not having a spare Universal Serial Bus (USB) port on your computer. All your personal devices are connected. On most days, I carry a mobile phone, smart watch, wireless headset, and a Wi-Fi adapter – all of which can only be charged via a USB port. When I need to back up files on my computer, I often use a USB flash drive. When charging devices in the car, I use standard USB ports. USB is everywhere! It is so ingrained into our daily lives that it is a part of our every digital experience.

电路保护

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标签:电路保护

Three Reasons Why Using System Level ESD Protection Is Not Like Buying Insurance

Posted by Timothy Puls on 09 June 2020

Often I hear an analogy made about transient voltage suppressor (TVS) protection components that goes something along the lines of this: “TVS components are a great insurance policy,” or, “think of using electrostatic discharge (ESD) protection diodes as an insurance against ESD damage,” or, “you may not need it, but if you want a little additional insurance, consider adding a TVS array on this circuit.” The idea is that when design engineers invest in using TVS components for circuit protection it is like a “hedge” or added “insurance” against some unforeseen ESD or transient damage that might occur in the future.

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标签:电路保护

Semtech 和 Society of Women Engineers:社区、多元化与包容性

Posted by Isabel Stumfall on 06 May 2020

Just a few short weeks ago, I had the privilege of speaking at the Society of Women Engineers (SWE) collegiate section at California Polytechnic State University, San Luis Obispo (Cal Poly SLO). Having been an active SWE member for five years and the 2019-2020 Section President for the San Buenaventura professional section, I was beyond thrilled to have the opportunity to represent Semtech at an event for SWE. This was able to take place thanks to a company culture of community building and enthusiastic support from Semtech leadership. Semtech’s CEO has spoken previously, such as in a recent interview with Authority Magazine, on the importance of diversity, setting the tone for Semtech’s commitment to a diverse workforce. Diversity meets inclusion when each member of the team takes the Semtech Core Value of treating all with dignity and respect, and applies that to supporting a global team and a commitment to recruiting with diversity in mind.

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Tags: Company, Circuit Protection, Human Resources, ESG

第二部分:OBD-II 系统的 ESD 保护

Posted by Anindita Bhattacharya on 29 April 2020

This is the second blog in a two-part series about ESD protection of OBD-II ports. Read the first part here.

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标签:电路保护

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