Original:https://mp.weixin.qq.com/s/2ACNTsl_JQSMwvWsZf55zw 1. Introduction During the use of a computer, shutting down and rebooting are the first two operations learned. Similarly, these two operations exist in Linux, allowing for shutdown and reboot. This is the subject to be described here. In the Linux Kernel, mainstream shutdown and reboot are implemented through the “reboot” system call (for … Read more
Introduction In the field of high-efficiency power conversion, the Asymmetric Half-Bridge (AHB) topology has become a core design solution for high-density power modules, electric vehicle chargers, and industrial power systems due to its simple structure, low switching losses, and soft-switching characteristics. As the “brain” of the AHB architecture, the AHB controller chip achieves efficient driving … Read more
Author: Zhao XiaofeiIoT Think Tank Original Passive IoT devices, as a new type of connected device, can collect energy from almost any available energy source in the surrounding environment to support IoT devices. Behind these devices is the Energy Harvesting technology, which has seen the emergence of an ecosystem composed of energy harvesting component manufacturers … Read more
Original: https://mp.weixin.qq.com/s/HJihdfu9zVYEuvHVV0WXwQ 1. Introduction Conventional power management methods in Linux systems include shutdown (Power off), standby (Standby or Hibernate), and reboot (Reboot). These methods were used during the era of PCs or servers before the widespread adoption of embedded Linux. In that primitive era of computer science, driven by Moore’s Law, humanity was focused on … Read more
The following is a further analysis of the price ranges of different types of power management chips based on search results, including the proportion of chips in each price range: Power Management – Automotive LED Drivers Low Price Range (0-10 CNY): Includes LM3406HV-Q1 (6.401 CNY), LM3406-Q1 (5.214 CNY), LM3421-Q1 (9.638 CNY), etc., accounting for approximately … Read more
Synthesizers and Clock Chips LMX2624 – SP: A space-grade broadband synthesizer with phase synchronization capability, supporting JESD204B, operating from 5MHz to 28GHz. LMX1860 – SEP: A radiation-hardened 15GHz RF buffer, frequency multiplier, and divider with SYSREF (supporting JESD204B/C) and FPGA clock. LMX1205: A low-noise, high-frequency buffer/frequency multiplier/divider with JESD204 support and programmable clock delay. Analog-to-Digital … Read more
The following is an analysis of the price ranges for different types of products: Power Management Low-Side Drivers: The price range is quite broad, with a minimum of 0.282 yuan and a maximum of 13.541 yuan. Products priced below 5 yuan are quite common, such as 0.282 yuan and 1.159 yuan; there are also some … Read more
This is a study note, original text: https://mp.weixin.qq.com/s/6GFHt6JY1eyz85k6xZtCVA 1. Introduction In this world, the operation of any system requires energy. Just as trees grow by relying on light energy, horses run by relying on food, and computer systems operate by relying on electrical energy. However, acquiring energy comes at a cost, so if we can … Read more
The XL32F003 microcontroller is a high-performance microcontroller based on the 32-bit ARM Cortex-M0+ core developed by Shenzhen Xinling Technology Co., Ltd. It offers various packaging options including SOP8/SOP14/SOP16/TSSOP20/SSOP24/QFN20/QFN32 to meet different design requirements. The XL32F003 can be used in applications such as industrial control, handheld devices, PC peripherals, and sensor nodes. With rich peripheral resources … Read more
According to a report by Synergy Research Group, by the end of 2024, the number of data centers operated by hyperscale operators will reach 1,136, a significant increase from less than 600 in the fourth quarter of 2019, indicating that the number of global hyperscale data centers has nearly doubled in the past five years.Additionally, … Read more