How can I detect whether there is 220V input with the lowest power consumption?
Assuming that an optocoupler is used to detect 5V1MA, it is only 0.005W. However, if an optocoupler is used to detect 22...
[list] [*][align=left][color=rgb(85, 85, 85)][font="][size=4]TI K2 series heterogeneous SoC has a variety of chips for customers to choose from according to performance and application areas:[/size][/...
[i=s]This post was last edited by usonix on 2019-11-3 23:35[/i]The effect is still there
Continuously optimizing
Later, we will DIY the industrial module of the ultrasonic series...
While browsing EE, I happened to find that eeworld and MPS had cooperated to launch a welfare event, so I decided to participate.
[Full cashback for orders, capped at 300 yuan] MPS Mall Power Design G...
According to reports, Taiwan's heat dissipation factories used to focus on the NB and PC industries. In recent years, as the emerging
LED
industry continues to boom, related companies have ...[Details]
Advanced manufacturing, no welding, no prosperity
There is a processing technology that we often hear about, but it is not easy to learn. It is easy to get started, but difficult to master. Fr...[Details]
ASUS recently announced organizational adjustments. The biggest change is that the PC business group will be merged into the ROG e-sports department and reorganized into the consumer products departm...[Details]
On September 13, an expert review team composed of representatives from Hubei Electric Vehicle Circulation Association, Hubei Second-hand Car Trading Industry Association, Hubei Machinery Industry Fed...[Details]
On December 12, the Yinpai Battery Smart Ecological Factory under GAC Aian was officially completed and put into production. At the same time, it released a new breakthrough in magazine battery 2.0 -...[Details]
Line comparison Figure 1 and Figure 2 are the circuit diagrams of the two driving modes. Now let's compare the working processes of the two modes. 1. When the voltage is appropriate: Ap...[Details]
The new Motorola Razr combines the classic flip design with cutting-edge flexible screen technology. The cutting-edge technology of this phone is also reflected in another aspect, that is, eSIM...[Details]
If you want to check whether the line is short-circuited, first turn off the power supply of the line, then open each load switch, and use the ohm range of the multimeter to measure the resistance be...[Details]
The electron tube is an electronic device that generates current conduction in an airtight closed container (usually a glass tube) and uses the effect of the electric field on the electron flow in ...[Details]
The automotive industry has come a long way in its development. Now, the technology to build self-driving and autonomous vehicles is no longer just science fiction, but is gradually being used in t...[Details]
In the interrupt service function, if the flag is set, and then other functions judge the flag, it is necessary to set a global variable to implement it. The modifier volatile needs to be added to th...[Details]
The preset voltage display circuit is shown in Figure 4. This design uses the decoder driver 74F244 to drive the LED digital tube to display the preset voltage, which is controlled by the microcont...[Details]
I wrote a C program on Keil to figure out the implementation of interrupts. I took notes:
1. Five interrupt sources of 8051
serial number
Interrupt Sources
Entry address
...[Details]
According to Reuters, U.S. semiconductor company Qualcomm said on September 5 that it will provide chips needed for in-car infotainment systems to luxury car manufacturers Mercedes-Benz and BMW. Qu...[Details]
First of all, the rotor of Tesla's 3D6 motor adopts the classic single V permanent magnet structure, which uses a three-segment approach to optimize noise, with the middle segment being twice the s...[Details]
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