芯片自主研发

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雷军官宣小米造芯,十年磨一剑,小米 “芯” 征程迎来高光时刻
Sou Hu Cai Jing· 2025-05-16 02:10
如今,玄戒 O1 的出现,像极了蛰伏十年的战士终于亮剑。市场传闻它将搭载在小米 15 周年旗舰机型小米 15S Pro 上,这个消息让米粉们炸开了锅。有资深 米粉在论坛写道:"当年买小米 5C,就是冲着澎湃 S1,虽然体验不算完美,但那份热血一直记得。这次玄戒 O1,说什么都要支持!" 转机藏在 "曲线救国" 里。小米决定从 "小芯片" 突围,影像芯片澎湃 C 系列、充电芯片澎湃 P 系列、电池管理芯片澎湃 G 系列陆续诞生。记得澎湃 C1 发布 前,影像团队为了优化一个算法,在暗房里连续待了 72 小时,出来时连阳光都觉得刺眼。这些看似 "小" 的突破,却像一块块基石,默默铺就着通往主芯片 的路。 凌晨的北京小米科技园,玻璃幕墙映着点点星光,就像过去无数个挑灯夜战的日子。5 月 15 日晚,雷军指尖轻点,一条微博打破了科技圈的平静:"小米自 主研发设计的手机 SoC 芯片,名字叫玄戒 O1,即将在 5 月下旬发布。" 这条消息,让无数曾参与小米造芯计划的工程师红了眼眶 —— 十年了,那个未竟的 "芯" 愿,终于要实现了。 把时间拨回 2014 年,智能手机市场打得火热,芯片却被国外巨头垄断。雷军带着团队立下 ...
宽压高效,国产之光——北京微科WKC4359理想二极管控制器芯片问世
半导体行业观察· 2025-03-07 01:23
Core Viewpoint - The article highlights the launch of the WKC4359 ideal diode controller chip by Beijing Weike Nengchuang Technology, emphasizing its capabilities to replace traditional Schottky diodes and its significance in enhancing energy efficiency and reliability in various applications [2][10][11]. Group 1: Product Features - WKC4359 is designed to drive an external N-channel MOSFET, controlling the forward voltage drop to ensure smooth current transmission without oscillation, even under light load conditions [2]. - The chip features a shutdown mode that reduces static current to a minimum of 10μA, significantly improving energy efficiency [10]. - It can handle a wide input voltage range and has a reverse input voltage tolerance, making it suitable for demanding telecommunications applications [3][10]. Group 2: Technological Significance - The development of WKC4359 represents a significant step in China's self-reliance in semiconductor technology, especially in response to U.S. restrictions on chip supplies since 2018 [3]. - The chip is fully designed, manufactured, packaged, tested, and mass-produced domestically, with three related patents filed for intellectual property protection [3][11]. Group 3: Applications - WKC4359 is applicable in power management systems, ensuring stable operation and improving power efficiency in various electronic devices [8][10]. - It is also suitable for communication and electronic devices, enhancing performance and reliability in signal conditioning and power management [9][11]. - The chip can be utilized in battery protection to prevent damage from reverse connection and overcharging, thereby extending battery life [12]. Group 4: Competitive Advantages - Compared to traditional Schottky diodes, WKC4359 significantly reduces power dissipation, with a forward voltage drop of around 30mV at 10A, while Schottky diodes exhibit a drop of 400mV to 900mV [7][10]. - The chip's design includes an integrated charge pump, fewer pins, and simpler peripheral circuitry, making it more cost-effective and reliable than foreign competitors [10][11].