I got a STM32L151C8T6 board, powered by a 3.3V button battery. But the battery died. I used STLINK to power it, and it should be 3.3V, but when I measured it with a multimeter, it was 4.77V, and somet...
The output voltage rises, the cathode voltage of TL431 drops, the P tube is turned on, and the output voltage drops.
But doesn't the transistor go directly to the ground when it is turned on? Is there...
[i=s]This post was last edited by jinglixixi on 2021-9-13 17:09[/i]AB32VG1 is equipped with 6 PWM output channels. If PWM is used to control RGB_LED, a breathing light effect can be produced. The pin ...
A multimeter can be used to test short circuits in a circuit. A short circuit refers to a situation where low resistance occurs between two electrodes in a circuit, causing current to be absorbed by ...[Details]
What is the efficiency of an asynchronous motor?
The ratio of the output power to the input power of an asynchronous motor. Usually expressed as a percentage.
The efficiency of asynchrono...[Details]
We compile each c or assembly file separately, but do not link them, and generate many .o files. These .o files are scattered first, and we must first consider how to combine them; secondly, these .o ...[Details]
First, the purpose An equipment ledger management method developed in order to strengthen the management and maintenance of equipment and improve the efficiency of use of production equipment it...[Details]
introduction
As people's demand for large-screen color TVs continues to increase, plasma displays (PDPs) have a considerable advantage in the competition due to their unique advantages such ...[Details]
I rarely used external interrupts before, but I need to use them today, so I reviewed them. The two pins INT0 and INT1 are used to identify external voltage levels. The following are the two registers...[Details]
Recently, Xiaomi and Lenovo's Motorola mobile phones have been arguing over which one will be the real first launch of the Snapdragon 8Gen1 chip. Recently, Lenovo executive Chen Jin once again promot...[Details]
SLD Laser, a global leader in the commercialization of laser light sources, has announced the launch of the world’s first dual-emitting white light and infrared (IR) LaserLightTM light source, which ...[Details]
It seems that all power battery companies are caught in a "dilemma", but have to bite the bullet and move forward. There is no win-win situation in the power battery market. LG Energy Solution Ch...[Details]
1 Introduction
In the long-term use of PLC, programmable controllers have gradually exposed technical limitations such as simple circuit opening, poor communication expansion capability, cumber...[Details]
Microstrip antennas have been increasingly valued and widely used since the 1970s due to their many advantages, such as light weight, simple production, low cost, easy conformity with the carrier p...[Details]
As the COVID-19 pandemic has changed consumers' shopping habits and driven the growth of e-commerce performance, Microsoft announced on Friday (26th) that it will permanently close its physical retai...[Details]
0.png (38.96 KB, Downloads: 18) Download attachments and save them to the photo album Uploaded on 2019-6-29 04:45 The microcontroller source program is as follows: /****************...[Details]
The emergence of the emerging field of semiconductor lighting has made engineers who specialize in power electronics, optics, and thermal management (mechanical engineering) in high demand. Currently,...[Details]
Recently, the 1MW vanadium battery energy storage system provided by Tianfu Energy Storage to a customer has successfully passed strict quality inspections, fully complies with established industry...[Details]