The adjustable power supply composed of LM317 has the following two problems:
1. What is the function of the circuit composed of VQ1 and R3 in the figure?
2. What is the function of VD2 in the picture...
1. DIP switch
This is a cross section of a plain old DIP switch. There are four groups of switches in this component. This is one of the switches.
This is the annotated version. It looks very simple. ...
After a circuit board is soldered, when checking whether the circuit board can work normally, it is usually not powered on directly. Instead, follow the steps below to ensure that there are no problem...
Application scenario: The switch uses MOS 47N60 or IPW60R045CP, and it is best if both can be driven. The driver supply voltage is 12-15V. [/backcolor][/color] [color=rgb(85, 85, 85)][backcolor=rgb(25...
1. Talk about the difference between ARM7 and ARM9: What are the differences between ARM7 and ARM9? I am preparing to learn ARM, but I don't know whether to choose ARM7 or ARM9? Maybe these questions ...
Before debugging vs1003, I had already read the datasheet of vs1003; I basically understood its communication principles and some basic settings.
When debugging, I just took the code I found on the I...[Details]
When building a VXI measurement and control network, we need to consider the cost, system scale, system security, network load and other aspects according to the specific test tasks and require...[Details]
As the number of cars increases year by year, higher requirements are placed on vehicle management at regional entrances and exits, which has promoted the rapid development of intelligent parking s...[Details]
The Redmi K40 dual flagship will be officially released on February 25, and the official continued to preheat the promotion for the phone today. Judging from the preheating content, the ent...[Details]
Semtech's SC442 is a 10-channel high-efficiency 120-
white light LED
driver
with an input voltage of 4.5V-21V. The high-efficiency boost converter can make the output voltag...[Details]
As usual, Google releases security updates for Android on the first Monday of every month. Unlike in the past, this month Google not only fixed multiple security issues, but also solved many n...[Details]
Yesterday, OPPO Ace2 was officially released. The phone is not only equipped with a Snapdragon 865 processor, supports 5G networks, has a 48-megapixel quad-camera on the rear, but also uses 65W wired...[Details]
1. Introduction
The use of thin film technology to manufacture thin film circuits is an important branch in the thin film field. The main features of thin film circuits are: relatively hig...[Details]
The research on flicker-free is most intuitive from the perspective of power supply. In fact, it is a question of "frequency". The human eye and CCD probe will not feel ultra-high frequency, but the...[Details]
Recently, we learned from foreign media that the Spanish oil and gas company Repsol has launched a charging pile with a maximum charging power of up to 400kW. This 400 kW charging station is also e...[Details]
Conventional cargo transportation monitoring systems monitor vehicles, and the cargo information in the vehicle can only come from an offline database, which does not have the ability to timely unders...[Details]
CEVA, the leading licensor of signal processing platforms and artificial intelligence processors for smarter, connected devices, today announced that Ambiq Micro, a leader in ultra-low power solution...[Details]
HIL Real-time Simulation Series 3
Today we are in the third chapter of the TSMaster HIL real-time simulation series. In the previous chapter, we introduced how to automatically generate ...[Details]
1. Before measuring, it is necessary to cut off the power supply of the equipment and ground or short-circuit it to ensure personal and equipment safety and obtain accurate measurement results. 2. Pa...[Details]
The GPIO configuration for external input and output mainly consists of the following steps: 1.Configuration of GPxCON. The function of each IO pin is multiplexed, and GPxCON determines whether...[Details]