So depressed... I've looked at Joyo and Dangdang, but can't find it. I guess it's because it's not selling well. Business comes first... :Q :Q :Q :'( :'( :'( I'll look for it tomorrow......
The second video corrected some mistakes in my previous video. First of all, the light source is not made with DLP, because DLP is not necessarily a micro-projector, and the resolution can also be hig...
[i=s]This post was last edited by 1nnocent on 2021-10-21 20:58[/i]The question is as shown in the picture. Picture 2 is the reference answer. The answer seems to be wrong.The answer to "1" seems to ha...
[i=s] This post was last edited by paulhyde on 2014-9-15 03:37 [/i] Can you bear it? :lol Quadcopter (Question B) Supplementary instructions The "flight control" mentioned in the instructions (2) of t...
I'm begging for a POWERPCB design rule. What are the parameters in the design rule? Design parameters for 2-layer and 4-layer boards. Thank you. I'm just getting started with layout. QQ:147550444 E_MA...
When we use 28035 to control a 5kw single-phase full-bridge inverter, the load is very small and the input voltage rises to 160V. The normally running program in the DSP's RAM suddenly disappears, and...
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[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]
The rectified DC voltage is then converted back to AC using power electronics such as insulated gate bipolar transistors.
The output voltage is switched on and off at a high frequency, control...[Details]
1. Proposal of
reconfigurable
measurement and control system
The measurement and control system generally refers to a system based on
computers
to realize data acquisition a...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
A stepper motor is an electromagnetic mechanical device that converts an electrical pulse signal into an angular displacement or a linear displacement. The stability and reliability of a stepper mo...[Details]
1 Introduction to LED
With the development of science and technology, people have higher and higher requirements on automobile light sources. LED (Light Emitting Diode) has gradually attracted...[Details]
Every time I go home and walk up the stairs, I am always scared. The corridor lights are often broken, and no one changes the bulbs, or they are not smart enough and need to be operated manually. E...[Details]
The capacity of a battery depends on the amount of charge and discharge, in addition to some factors of the battery itself. Obviously, if the charge and discharge of the battery can be recorded all...[Details]
As a new type of centralized and decentralized elevator control system, serial communication has been widely used in China. Compared with the previous centralized and unified control system, each s...[Details]
Traditionally, when using PLC to control stepper motors, a dedicated stepper motor control intelligent module is usually added to the PLC, and then connected to the drive power supply to realize th...[Details]
1 Introduction
With the rapid development of my country's economy, the country has introduced a series of policies such as preferential policies, subsidy policies, and old-for-new policies, wh...[Details]
Reliability and real-time performance are the basic requirements for control systems. Initially, motor control used analog circuits with discrete components. With the advancement of electronic tech...[Details]
As the automobile consumer market heats up, the safety performance of automobiles has attracted more attention from consumers. When driving at high speed, tire failure is the most worrying and diff...[Details]
1 Introduction
The early stage control system used relay control. Due to the large number of stage equipment, the number of control elements is huge and the wiring is complicated. Therefore, th...[Details]
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