This is a single-key bistable circuit I bought from Taobao. After copying it, I found that it can only be monostable. Q12 will output when power is turned on. What's the problem?...
China's first 5.1-channel DVD quality sample test disc was successfully developed by the China Audiovisual Products Evaluation and Production Center . The test disc uses two decoding methods: DOBY A...
[i=s]This post was last edited by lvxinn2006 on 2019-1-11 08:54[/i] [p=30, 2, left][size=14px]The development board ST NUCLEO-G071RB evaluated in this event is provided by STMicroelectronics. Thanks t...
The topic of "all people having access to electricity" in China has been quite popular recently. In fact, there is a province in my country that was the first in the country to achieve "all people ...[Details]
Integral Nonlinearity (INL) The maximum deviation of a conversion result code from a straight line through the endpoints of its transfer function. The transfer function endpoints are the points 0.5 L...[Details]
CCFL cold cathode lamp is a new type of lighting source; CCFL lamp tube has the advantages of small tube, simple structure, small temperature rise on the surface of the lamp tube, high brightness ...[Details]
The initial wave of foldable smartphones encountered some issues regarding their flexibility. While this prompted manufacturers to rethink the design to solve the initial problems, there are s...[Details]
1. Immunolabeling and its classification
1. Fluorescence immunoassay
The principle is to use a sandwich method of a pair of monoclonal antibodies. The substrate is 4-methylumbelliferyl phosp...[Details]
The microcontroller must start with GPIO. The three LED lights on the development board are PD0, PD2 and PD3, and the KEY is PD7, so the GPIO initialization only needs to initialize the PD port. Writ...[Details]
1 Introduction With the development of microelectronics technology, the degree of automation, integration level and technology density of airborne equipment are constantly increasing. At the same tim...[Details]
1. What is ripple?
Ripple is defined as the AC component superimposed on the DC stable quantity in a DC voltage or current.
It has the following main disadvantages:
1.1. It is easy...[Details]
According to DigiTimes, Samsung Electronics will skip the 4nm process and jump directly from 5nm to 3nm, unlike its competitor TSMC's process route. TSMC plans to complete its 4nm N4 process in 2023....[Details]
Abstract: Based on the color array CCD sensor, the high-speed real-time image acquisition system is designed with the signal processing chip CXD3172AR as the core. It can output the video signal in...[Details]
Generally speaking, engineers often optimize the electronic transformer parameter design to improve the efficiency of LED driver power supply and reduce the eddy current loss caused by ringing. But...[Details]
According to foreign media reports, Tesla's Summon feature received its first major upgrade in March this year, upgrading it from a basic function that just makes the car move slightly forward a dist...[Details]
introduction
ARM is the abbreviation of Advanced RISC Machines, which is a microprocessor intellectual property (IP) core provided by ARM.
ARM applications have spread to various product marke...[Details]
Here is an overview of the pros and cons of these motors:
1. Advantages:
(1) Low cost:
Two-phase permanent magnet (PM) stepper motors are generally less expensive than similarly size...[Details]
PCB Design
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