1? Detection of fixed capacitors A? Detection of small capacitors below 10pF Because the capacity of fixed capacitors below 10pF is too small, using a multimeter to measure can only qualitatively chec...
I changed the power supply of a 30W two-stage constant current LED driver (flybak+buck) to 300ma, 40v by changing some resistors. I found that the efficiency has changed from 86 to 80. Why is this? Ho...
I'm learning STC12C2052AD microcontroller recently. I use 2 potentiometers to adjust 2 ADCs to convert and output 2 PWM signals to adjust the brightness of LED lights. However, only P1.7 port can adju...
I went to an interview and was asked to write a small program for a measurement and control system. I was only given a circuit diagram and the file had no suffix. I found out after much difficulty tha...
Is electromagnetic radiation from electric vehicles harmful to the human body? Recently, the issue of electromagnetic radiation from electric vehicles has garnered widespread attention. However, pu...[Details]
With the rapid adoption of smart electric vehicles, automotive chips are evolving from auxiliary control units to the foundation of the entire vehicle's intelligence. Their applications extend from...[Details]
On August 21, it was reported that Intel's new generation of AI chip Jaguar Shores was recently exposed for the first time.
According to photos shared by Andreas Schilling, the Jaguar Shores t...[Details]
Today, the voltage of electronic products continues to rise to 400V, 600V and even 1000V, so there are few electronic load models that can handle such high voltages. Many people consider connecting...[Details]
With rapid economic development, the types of pollution sources are increasing, especially in chemical and industrial zones and their surroundings. The patterns of pollution and the types of ecolog...[Details]
Using an electronic load is like thinking of it as a resistor that dissipates the power supply's output. The most straightforward mode is the CR constant resistance mode. In this mode, by setting a...[Details]
Bearing wear is a common equipment problem in the manufacturing industry. In today's world where controlling production costs is advocated, using repair technology to reduce the scrapping and repla...[Details]
1. Static Balance
Static balancing is performed on one correction surface of the rotor. The remaining unbalance after correction is used to ensure that the rotor is within the specified range ...[Details]
No one expected that after about a day of downtime, four or five thermostats on the control panel would display four 0000s and flash. We knew it was caused by poor contact of the temperature sensin...[Details]
Most electric vehicles currently lack a gearbox, only a single-speed reduction gearbox. This includes Teslas, but that doesn't mean electric vehicles don't need a gearbox. Thanks to the constant to...[Details]
Sometimes an IAR project is closed abnormally. When you open the IAR project again, the project will not be displayed in the Workspace column, as shown in the following figure:
C...[Details]
1. Basic structure and working principle of centrifugal pump
1. Centrifugal pump water pump relies on the high-speed rotation of the impeller to make the fluid obtain greater kinetic energy, a...[Details]
On August 8, PetroChina Southwest Oil & Gas Field Company's 35kV Zhouping Line centralized battery energy storage system successfully completed a 24/7 trial run, achieving full compliance with all ...[Details]
Function (FC) parameters
Functions do not have data memory in which to store the values of block parameters. Therefore, when calling a function, all formal parameters must be assigned actual p...[Details]
introduction
Global energy shortages and environmental degradation are driving the urgent need for low-carbon economies. New energy vehicles, balancing energy conservation and environmental pr...[Details]
Discrete Device
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