[align=left]This standard is equivalent to Chapter 161 (1990 edition) of the International Electrotechnical Commission (IEC) International Electrotechnical Vocabulary (IEV). This standard specifies th...
What is the general PWM drive frequency of a DC motor? A few days ago, I adjusted the drive circuit of a motor. The 8K frequency MOS tube kept burning. After adjusting it to 1K, it stopped burning....
Netizens who are interested in ST MEMS sensors or use sensors are welcome to gather in the "ST Sensor and Wireless Communication Group".Scan the QR code on WeChat to add "helloeeworld", and then talk ...
How to use AT89C2051 to make four relays to control four DC motors to rotate forward and reverse at the same time, and also use diodes to demonstrate the working condition of the motors? ?...
I found that the code "copying the contents of nand to SDRAM" in 2410init.s is problematic. The reasons are as follows: We know that there are bad blocks in nand, but the first block is definitely a g...
For a long time, domestic counterfeit goods have emerged in an endless stream. Let me ask. Who caused this phenomenon? You can understand the national policy by looking at the following repost. For a ...
High efficiency and low standby power consumption are two major challenges in today's switching power supply design. Resonant topology or LLC topology is becoming increasingly popular because it ca...[Details]
At present, the development of wireless power supply technology for electric vehicles (EVs) is becoming more and more active. In 2012, Volvo of Sweden established Volvo Technology Japan in Tokyo as...[Details]
In
circuit design,
current
measurement
is widely used, and the main fields are divided into three categories: in measurement,
the electric meter
is used to measure the curre...[Details]
Automotive applications are particularly sensitive to EMI events, which are unavoidable in a noisy electrical environment consisting of a central battery, bundled wiring harnesses, various inductiv...[Details]
In order to highlight the concept of "energy saving and environmental protection" of intelligent buildings, solar street lights are designed for intelligent communities. The inclination and capacit...[Details]
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The way to reduce costs is
① Use the Bluetooth data transmission function of mobile ph...[Details]
Although it is relatively easy to check the stability of a simple amplifier at lower frequencies, it may be much more difficult to evaluate the stability of a more complex circuit. This artic...[Details]
With the development and widespread application of computer technology, especially in the field of industrial control, computer communication is particularly important. Although serial communication g...[Details]
A multi-point temperature control heating control system was designed using the SST89E564RC single-chip microcomputer and a new temperature measuring device. The heating system can be controlled in...[Details]
1. Background:
The instrument system parameter detection and control of the chemical production workshop of Tangshan Coal Gas Coking Plant are all analog instruments, some of which are eve...[Details]
my country is a big country in agriculture, grain production and consumption. Grains are a necessary condition for our nation to survive and develop. The flour processing industry will exist forever w...[Details]
PV inverter manufacturer SMA has launched its first DC arc fault circuit interrupter (AFCI) PV inverter and has received UL certification.
The new SunnyBoy AFCI inverter models include 3000-US...[Details]
This paper designs a 16x16LED Chinese character display bar based on single-chip dynamic scanning control, briefly analyzes the principle of Chinese character display, and studies how the LED displ...[Details]
Spatial Division Multiplexing (SDM) MIMO processing can significantly improve spectrum efficiency and thus greatly increase the capacity of wireless communication systems. Spatial Division Multip...[Details]
LED guardrail lights use fluorescent tubes or LEDs as light sources and continuous guardrails as carriers to form an approximately linear guardrail light strip. This article mainly introduces...[Details]
Power technology
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