PMIC Report Summary Chips are generally divided into two major categories: analog and digital chips. Among them, analog chips include analog signal chains and mixed-signal chips, power devices, RF radio frequency devices, and sensors. Power devices are further divided into Power Management Integrated Circuits (PMICs) and power devices. The technologies and application areas related to … Read more
1. What is PMIC Power Management Integrated Circuit（PMIC） is known in Chinese as 电源管理集成电路, and its main feature is high integration, packaging traditional multi-output power supplies into a single chip, making multi-power applications more efficient and compact. PMIC is an indispensable key component in today’s electronic devices. It provides power for various devices with its … Read more
2017, Happy New Year! This Issue Guide: Many mechanics often ask me why the motor won’t start and there’s no response when trying to start the car. When I encounter such issues, I honestly feel reluctant, especially when there are no fault codes. This kind of problem is systemic and involves various aspects of the … Read more
The ECU (Electronic Control Unit), as the brain of the car, controls the vehicle’s engine, airbags, anti-lock braking system, etc. In addition to the ECU located in the engine, there are also separate ECUs in other locations of the car, with approximately hundreds of ECUs in a single vehicle. However, with the development of the … Read more
Source:Medical Equipment Author:Huang Jian The ultrasound diagnostic device, as a precise and valuable clinical diagnostic medical equipment, is currently widely used in various hospitals. Although there are numerous brands and model specifications, the working principle is basically the same, which is that the instrument emits ultrasound waves through the probe. The ultrasound waves reflect off … Read more
1.High-frequency mobile C-arm, widely applicable in clinical settings: can be used for interventional imaging/bone surgery/gastroenterology intervention/vascular intervention/neurosurgery intervention/tumor intervention/pain intervention. 2.B ultrasound is a technology that uses ultrasound to detect the human body, constructing organ images based on the feedback from sound waves. 3.CT (Computed Tomography) is a type of electronic computer tomography that uses … Read more
In 2016, I remember that only time-telling wristbands were quite popular. At that time, companies like Xiaomi, Huami, and Apple hadn’t yet ventured into the smartwatch market. I randomly bought my first DIY watch face watch from a crowdfunding site. Now, let’s take it apart and see its internal structure! Here’s a picture of the … Read more
The national standard of China (GB7665-2005) defines a sensor as: “a device or apparatus that can sense the measured quantity and convert it into a usable output signal according to certain rules.” Sensors, as an important means of information acquisition, along with communication technology and computer technology, constitute the three pillars of information technology. Below, … Read more
Differences Between TTL and RS232 Levels What are TTL levels, CMOS levels, and RS232 levels? What are their differences? Generally speaking, CMOS levels have a higher noise tolerance than TTL levels. (1) TTL Level Standards Output L: <0.8V; H: >2.4V. Input L: <1.2V; H: >2.0V The output low level of TTL devices must be less … Read more
Click the above “Follow Electronics” for easy learning of electronic knowledge. Follow Electronics Subscription Account Daily updates of technical articles in the electronics industry and the latest information on microcontrollers, making it easy to learn anytime, anywhere. <RS232 and RS422 Interface Circuits> 1. RS-485 The RS-485 bus is widely used when communication distances range from … Read more