Regarding the 125Khz low-frequency card, the wavelength of its electromagnetic wave is 2400 meters. Is the coil of the card reader an antenna or a mutual inductor? If it is an antenna, then the optima...
As shown in the figure, the half-bridge inverter topology
In the case of power failure, if the ±Vbus bus voltage is greater than 36V, the drive signals of the two power tubes Q1 and Q2 still exist, ca...
[i=s]This post was last edited by qwqwqw2088 on 2020-5-30 07:39[/i]1: Schematic diagram part, AD18 has a very good function, adding a property box. See the figure below.
This is the window layout used...
1. As shown in the circuit above (1), the Vbus bus DC voltage passes through several step-down resistors to form the Vbus1 signal, which is then output by the op amp. This is a proportional reverse ou...
[color=#ff0000][color=darkslategray] Question: I need to set static IP and DNS on EK200. (linux3.14.52 kernel, burned file system is distro-fsl-image-qt5.tar.bz2) Some time ago, there was a post "EK20...
The term secure boot seems to be uncommon. Maybe it is rarely involved in MCU development? I think it is more related to bootloader. If you want to know more, welcome to follow the 19-year embedded en...
Hello everyone, we have shared with you the positive duty cycle search function of the ZDS2022 oscilloscope in the 83rd episode of the 100-episode practical video. In fact, the ZDS2022 oscilloscope h...[Details]
According to the Inquirer, in the field of 5G, the US government seems to always have many doubts about Chinese private enterprises such as Huawei and ZTE. Recently, the United States has asked its a...[Details]
1. Commonly used serial expansion buses are: I2C bus, single bus, SPI bus 2. The I2C bus has only two bidirectional signal lines, one is the data line SDA, and the other is the clock line SCL. 3. The...[Details]
This paper introduces a design of a power system harmonic analyzer based on dual TMS320F 28335. The analyzer can simultaneously realize the synchronous sampling of multi-channel signals (voltage an...[Details]
Zoss Automotive Research Institute released the "2024 Automotive Intelligent Cockpit Platform Configuration Strategy and Industry Research Report".
According to the evolution trend and f...[Details]
November 4, 2022, Hangzhou - Recently, Intel and Alibaba Cloud jointly demonstrated their rich cooperation and diverse innovations from technology to practical applications at the 2022 Yunqi Conferen...[Details]
After years of development, local enterprises have absorbed foreign research and development results, making wireless alarm products more stable than ever before. At present, they have basically be...[Details]
Generally, the battery core of a laptop uses 10.8V or 11.1V, and a single battery cannot meet the requirements. Therefore, laptop batteries are composed of multiple single cells connected in series an...[Details]
"Photovoltaic grid connection achieves 100% consumption of renewable energy; smart building transformation can reduce daily electricity consumption by 20%-28%; users can save hundreds of yuan in el...[Details]
The new coronavirus pandemic has swept the entire semiconductor industry. In 2021, the global chip shortage hit hard, and no one was spared from it, from automobiles to consumer electronics. This was...[Details]
On October 23, Changxin Technology disclosed its third-quarter report. The company achieved a total operating revenue of 5.08 billion yuan in the first three quarters of 2021, a year-on-year increase...[Details]
STMicroelectronics expands 5V op amp portfolio with optimized power and signal conditioning performance
October 12, 2022, China – STMicroelectronics has added a high-perf...[Details]
There are three types of PLC brands on the market: imported European and American brands such as Siemens, Schneider and GE; imported Japanese and Korean brands such as Omron, Mitsubishi and Panason...[Details]
When designing the circuit, I forgot the principle of the microcontroller reset circuit, so I wrote this article today to explain why I didn’t understand the circuit well and forgot it before.
, so...[Details]
1. Introduction Frequency converters are of great significance in energy conservation and power environmental protection. Motor drives are large consumers of electricity, consuming about 65% of the c...[Details]
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