The subdivision principle of the stepper motor driver is introduced. The stepper motor is equipped with a rotor with permanent magnets, and the stator has at least two windings. When the rotor magneti...
1. LDO (low dropout regulator)1. LDO: low dropout linear regulator, literally means linear;2. Output current equals input current3. Efficiency: equal to the ratio of output voltage to input voltage, t...
MEMS sensor technology is critical: it enables the development of new sensors that are small, reliable, and can accurately measure vibration and motion. For example, low-noise, wide-bandwidth accelero...
Since I chose ST's F7 development board this time, I naturally used ST's own TouchGFX software to design the interface.
In the past two days, I found that if TouchGFX is installed from CubeMX in the C...
IVD in vitro diagnostics + medical beauty products
Today, there are a wide variety of products - vital signs monitors, respiration, ECG, continuous blood pressure monitoring, blood oxygen, body temper...
The following are the test results of 433Mhz and zigbee. The modules purchased are all mainstream and most shipped modules from TI.
1.1 CC1101:The communication frequency of CC1101 is 433MHz. Its adva...
Abstract: Aiming at the problems of insufficient heating capacity and frosting of heat exchangers in pure electric vehicle heat pump air conditioning systems in low temperature and humid environmen...[Details]
0Introduction
In recent years, the development of a new generation of high-speed information networks has received widespread attention from countries around the world. All countries have pr...[Details]
1. Introduction to case projects 1. Project background A light source technology company in Changzhou is a technology-based enterprise specializing in technology development in the field of light sou...[Details]
Dell Technologies announced that its Quiet Keyboard and Mouse Set (KM555) and Dell Wired Collaboration Keyboard (KB525C) are now available. These two products were previously released at the Dell T...[Details]
1. Steps for code writing and read protection:
1. Preparation:
After the HEX file and JLINK driver (JLinkARM_V420 or above, secure chip may appear gray and unselectable in 4.08) are installed, you c...[Details]
O Introduction
With the rapid development of my country's aerospace industry, satellites are being used more and more widely. However, the space environment is complex and changeable, with var...[Details]
introduction
The vehicle-mounted satellite communication earth station is a satellite communication station installed on a car. It uses the rapid mobility of the car to quickly reach the ...[Details]
As we all know, Xiaomi's smart set includes 4 sets of human body sensors, door and window sensors, wireless switches and multi-function gateways, which use an industrial-grade ZigBee RF chip based ...[Details]
Currently, the rechargeable batteries widely used include lead-acid batteries, nickel-cadmium/nickel-metal hydride batteries, and lithium-ion/lithium polymer batteries. The characteristics of these...[Details]
MCS-51 series microcontrollers are often used in industrial control . In order to prevent the program from running away, a watchdog circuit is often connected externally . The watchdog circuit can ...[Details]
According to The Verge, BMW executive director and board member Klaus Fröhlich told reporters that the shift to electric-powered vehicles is "overhyped" and said there is "no" demand for these vehicl...[Details]
Aiming at the design of mobile phone radio frequency (RF) circuits, this article takes the test of SAW filters as an example to discuss the following three issues: how to use a single-ended vector ...[Details]
Before
the advent of
semiconductors
, the common technique for converting DC voltage to a higher voltage was to convert it to AC voltage through an oscillating circuit, then use a step-up tr...[Details]
For a long time, many products released by Apple have been praised by the industry and consumers. Products such as AirPods Pro, iPhone 13 Pro and M1 MacBook Pro are definitely among the best pro...[Details]
Motor Drive Control（Motor Control）
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