I have a 10-year-old laptop with an I5 CPU and 4G memory. I haven't used it for two or three years. The day before yesterday, I turned it on. It took about 10 minutes from booting to running. After bo...
Some time ago, I needed to test the charging of a lithium battery pack. The voltage of 18 lithium batteries in series can reach more than 70V. I used to have a GPC-6030D linear adjustable power supply...
Qorvo (Nasdaq: QRVO), a leading provider of innovative RF solutions that connect the world, today introduced the industry's smallest single-chip motor control and inverter solution for brushless DC (B...
We have introduced the Raspberry Pi speed control before, but that was to control the speed of one wheel. As a result, the speed was sometimes slow and sometimes fast, but the error was acceptable. Th...
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In order to give full play to the role of government investment funds in protecting strategies and promoting industries, on March 28, the Provincial Department of Finance successfully held the first H...[Details]
In any power supply design , the physical design of the PCB board is the last link. Its design method determines the electromagnetic interference and power supply stability. Let's analyze these lin...[Details]
Due to work needs, the power supply system we developed requires both leakage protection and uninterrupted power supply. Therefore, we use a 3kVA high-frequency online uninterruptible power supply ...[Details]
In recent years, the application of high-brightness LED has developed rapidly, especially in signboards and traffic lights. For automotive applications, LED is also very attractive. Long life, shoc...[Details]
According to South Korean media BusinessKorea, the Korea Trade Commission (KTC) has ended its investigation into Apple's patent infringement allegations because the Korean owner of the patent has rea...[Details]
Introduction Portable electronic devices, such as cell phones, PDAs, and laptops, have special overcurrent protection requirements. These devices are typically powered (charged) by AC/DC power adapt...[Details]
After more than ten years of contact, I found that when consumers choose speakers, they often ask: What is its efficiency? What is its impedance? But few people ask: What is its maximum sound pres...[Details]
1. Connect with life We have learned how to control the beeping time of a passive buzzer. As the last lesson of this chapter, we will combine the knowledge we have learned in the LED chapter to wri...[Details]
With the popularity of various smart phones and tablet computers, more and more people have begun to find that the power of various digital products, especially mobile phones, can no longer meet ou...[Details]
Recently, Tang Yongbing (corresponding author), a researcher at the Functional Thin Film Materials Research Center of the Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, and h...[Details]
The opening ceremony of Nidec Motor (Dalian) new factory was successfully held Nidec Electric (Dalian) Co., Ltd., a subsidiary of Nidec, successfully held the opening ceremony of its new factory in...[Details]
The loop resistance tester is also called the contact resistance tester, switch loop resistance tester, contact loop resistance tester, and contact (loop) resistance tester. The contact resistance in...[Details]
1. Introduction to the design This solution is based on NXP's LPC1768 microprocessor as the platform, uses KEIL MDK4.70A as the development tool, and realizes automatic program update through SPI. ...[Details]
Huang, speaking at market research and advisory firm Gartner's IT Symposium/Xpo event in Orlando on Tuesday, argued that CEOs and CIOs must start using AI early and that changes will happen natural...[Details]
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