PB11 is set as output, and the capacitance on this IO port may be as high as 105. If no load is connected, the waveform can be output, but it is easily interfered by other signals, and there will be p...
[size=14px]When analyzing PWM rectifiers and inverters, the analysis method of rotating coordinate transformation is often used. [/size] [size=14px]The reason is that the quantities on the AC side are...
AD21 I changed the * key for drilling holes during wiring to 4. There is no conflict with other shortcut keys, but it does not work after the modification. When I press 4 during wiring, the hole will ...
Recently, I need to implement a wide-line dot matrix printer connected to the USB port in WINCE5.0. I wonder if there is a good solution? If the printer manufacturer has a good driver under wince, it ...
1 Introduction With the continuous development of diode-pumped all-solid-state laser related technologies, it is more and more widely used in the fields of industry, national defense research, biome...
Yesterday was World Book Day. Did you read? I read some miscellaneous books~ ( ) Recently, major shopping malls have also taken advantage of this festival to organize book activities. Have you bought ...
The Mobile Industry Processor Interface (MIPI) Alliance is an organization responsible for promoting the standardization of software and hardware in mobile devices. It has released the D-PHY specif...[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]
Images in science fiction movies often break through the limits of reality, such as in the movie "Minority Report." Tom Cruise uses a multi-touch screen to browse information. Capacitive sensing te...[Details]
0 Introduction
With the development of society, people pay more and more attention to security work. Monitoring products have been used in various fields instead of being used only in importan...[Details]
1 Introduction
Ultrasonic waves have strong directivity, slow energy consumption, and can propagate over long distances in a medium, so they are used for distance measurement. Ultrasonic detec...[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]
Xiaomi, a well-known Internet phone in mainland China, won a million-unit order contract from China Unicom on November 20 last year, which made Xiaomi famous in mainland China. In April this year...[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]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[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]
The TPS92210 is a single-stage LED lighting pulse width modulation (PWM) controller. The TRIAC dimmable solution not only regulates the LED current, but also achieves a power factor close to 1. The...[Details]
LED light sources have many environmental advantages, but early products still have certain technical bottlenecks in heat dissipation and high brightness design that cannot be broken through....[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
stm32/stm8
京公网安备 11010802033920号
EEWORLD
