Zero-drift amplifiers use a unique self-correcting technique to provide ultra-low input offset voltage (Vos) and near-zero input offset voltage drift over time and temperature (dVos/dT) for general-pu...
It is a 1MHZ PWM signal. The 12V side is stepped down to 5V and fed to the microcontroller. It is found that the 5V power supply has more burrs, causing the PWM output waveform to be distorted. 12V 24...
When I read and write the SD card, FR_NOT_READY is always returned. The waveforms of the CD and DATA0 pins measured with an oscilloscope are abnormal. The SD card is powered by 3.3V and the processor ...
After many rounds of repeated testing, the first version of our forum app is now online! It does not take up memory, and you can easily browse the forum by scanning the code. Welcome everyone to exper...
It is very common to use a single-chip microcomputer. However, in FPGA, due to floating-point arithmetic problems, it is troublesome to use PID.
The following is a PID Verilog program I designed. It s...
[size=14px]Ubuntu 16.04 [/size]Compile C++ program. Error: expected class-name before '{' token { The error location uses the inherited class CompressedDepthSubm: public CompressedDepthSubscriber libr...
More and more Lambda customers are seeking and obtaining environmentally friendly (EF) or "green" power supplies. What constitutes an EF/green power supply ? There are many factors that a power s...[Details]
Phase Noise Overview Phase noise is one of the most important indicators for measuring the quality of signal generation devices. It plays an important role in applications in aerospace, defense and c...[Details]
What is a 4-20mA loop and how does it work?
Industrial
process test loops include
sensor
inputs, temperature, pressure, flow, etc.
The measured process variable is...[Details]
On March 21, Lihe Micro released its 2020 annual report stating that the company achieved operating income of 216 million yuan, a year-on-year decrease of 22.09%; the net profit attributable to share...[Details]
Recently, China Mobile's Procurement and Tendering Network released an announcement that it plans to purchase 2 million public versions of the Honor Magic 4 series of mobile phones. The annou...[Details]
Introduction to STC MCU The STC microcontroller is an enhanced 51 microcontroller, fully compatible with MCS-51, and has added new functions, such as two levels of interrupt priority, one more ex...[Details]
In recent years, driven by the awareness of green energy conservation, smart grid with smart meters as the core has become a key area of development for many countries such as Europe, the United St...[Details]
Functions: hourly time announcement, hour, minute and second adjustment, alarm setting, alarm switch, perpetual calendar and its adjustment, leap year
Judgment, stopwatch, chip: AT89S52, HD7279A
...[Details]
According to foreign media reports, researchers from the United States and China have developed a catalyst that solves three key problems that have long existed in direct ethanol fuel cells (DEFCs): ...[Details]
RFID systems, especially those with backscatter passive tags, present unique challenges for testing and diagnostics. Timing measurement is a particular concern because it may require the system reade...[Details]
The switched reluctance motor (SRM) has the advantages of simple and solid structure, high reliability, large starting torque, and good fault tolerance. It has been widely used in mining machiner...[Details]
On October 29, Nationstar Optoelectronics issued an announcement that the company's operating income in the first three quarters of 2021 was 2.848 billion yuan, a year-on-year increase of 24.18%; the...[Details]
Recently, the official website of the State Intellectual Property Office disclosed that the patent applied by Huawei Technologies Co., Ltd. on September 26, 2022 was published on March 26, 2024. Th...[Details]
Auto-coupling step-down starting and star-delta starting are two commonly used motor starting methods. They have different effects on the current and torque of the motor during the starting process...[Details]
Analogue and Mixed Signal
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