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Updated: 2022-03-10
Views: 3110

改变大功率电灯或电动机亮度的最佳技术之一就是脉宽调制（PWM）。在汽车电子系统中，一段时间以来，控制单元已使用PWM命令来对各种执行器进行控制和管理。例如，柴油机压力调节器、电风扇和前照灯的亮度就采用PWM信号进行管理。利用周期性信号驱动负载，电路的效率就非常高，所有产生的功率就都能传输到负载，也即损耗几乎为零。通过使……

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整流二极管的反向恢复过程值得深知

Updated: 2022-03-10
Views: 3156

0 1 二极管从正向导通到截止有一个反向恢复过程在上图所示的硅二极管电路中加入一个如下图所示的输入电压。在0―t1时间内，输入为+VF，二极管导通，电路中有电流流通。 ……

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41条电路接线方法，每一条都是10+年经验总结

Updated: 2022-03-10
Views: 3109

想知道哪些电路都是工程师日常工作经常会遇到，但是可能会做不好的吗？以下分享10+年电工常用的41例接线方法，都是经过实践项目验证，并且可以直接拿来使用，一起来看下吧！ 1.电动机接线一般常用三相交流电动机接线架上都引出6个接线柱，当电动机铭牌上标为Y形接法时，D6、D4、D5相连接，D1~……

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近期缺货的晶振厂家国内替代VS国外

Updated: 2022-03-10
Views: 3239

晶振在电子设备中无处不在，是电子线路中时钟频率、基准频率信号不可或缺的基础元件，誉为电子产品的“心脏”。不过今年已经多次传出晶振涨价的消息，有厂商表示是因为原材料价格上涨，也有业界人士认为，主要是因为疫情原因，致使海外大厂产品难以进入，以及部分厂商停工导致产能不足，晶振市场供需失衡导致价格上涨。晶振市场目前的交期情况也……

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近期小米发布的很火的UWB技术产业链

Updated: 2022-03-10
Views: 3124

本文转载自ittbank 公众号。ittbank 公众号隶属于深圳市思维空间信息技术有限公司，它是让电子库存因技术创造需求改变的ITT模式电商平台。一共享经济理念的创客及工程师为核心、以开放用户生成的数据为基础，为其提供高性价比的应用解决方案和及时精准的供求信息，快速提高产品开发周期和生产直通率、提升电子器件的应用附加……

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电机原理及几个重要公式

Updated: 2022-03-10
Views: 3213

本文转载自ittbank 公众号。ittbank 公众号隶属于深圳市思维空间信息技术有限公司，它是让电子库存因技术创造需求改变的ITT模式电商平台。一共享经济理念的创客及工程师为核心、以开放用户生成的数据为基础，为其提供高性价比的应用解决方案和及时精准的供求信息，快速提高产品开发周期和生产直通率、提升电子器件的应用附加……

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国内大陆有哪些芯片公司处于世界前10？一起看看！

Updated: 2022-03-10
Views: 3249

1.华为海思：2020Q1跻身全球第十大半导体厂商今年5月6日，调研机构IC Insights发布了其2020年第一季度全球十大半导体（IC和OSD，OSD是光电器件、传感器和分立器件的缩写）销售排名，华为海思创造历史，一季度的销售额同比大幅上涨，首次冲入半导体领域前十名。 2020年第一季度……

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Behind the scenes of the "Science and Technology Winter Olympics" China's "core" enterprises are revealed!

Updated: 2022-03-10
Views: 3126

With the grand opening of the Beijing Winter Olympics on February 4, the recent major events of the Winter Olympics continue to spark heated discussions among audiences around the world! In addition to the performance of the players on the field, the related off-field support work has also received unprecedented attent……

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In the end what kind of chip is the current car companies lack? This article takes you to understand those things about the car chip

Updated: 2022-03-10
Views: 3135

More than a month has passed in 2022, and the dilemma of car companies lacking a core will never disappear. When will this crisis that has plagued the global auto market for a long time be completely resolved?

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There is a shortage of domestic chip talents, the salary increase in the chip industry is expected to exceed 50%, and the annual salary of fresh graduates is as high as 600,000

Updated: 2022-03-10
Views: 3216

With the continuous suppression of China's chip industry by the United States, "chip independence" has become a hot topic in the hard technology industry, and chip manufacturers have also started an unprecedented fierce competition for talents.

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In the next 10 years, who will share the cake of domestic MCU?

Updated: 2022-03-10
Views: 3204

On January 18, 2022, INTI Micro Suzhou R&D Center officially opened in Suzhou Industrial Park 2.5 Industrial Park, and the important pieces of INTI Micro R&D puzzle are embedded in it.

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Route differentiation of storage IP

Updated: 2022-03-10
Views: 3188

In 2021, the United States, South Korea, Japan, the European Union, etc. have proposed "chip independence" plans, all of which are planning to expand investment and expand their own semiconductors and fields.

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