Using LM339 to generate a triangle wave. Why is there 7.5V at both ends of the comparator and the capacitor at the beginning? Is it a problem with the simulation software? ? I don't quite understand i...
When designing a PWM wave RC filter circuit, the time constant should be determined based on the response time requirements, and the RC time constant should be much larger than the PWM cycle. The RC c...
Dear seniors, I would like to ask that after the DRC check, there were no problems. I performed a DFA check and many component pads had the same errors. I don’t know how to fix it. Can you please give...
This paper introduces a method for realizing position sensorless drive of surface mounted permanent magnet synchronous motor (SPMSM) by using 120o trapezoidal wave alternation and estimating the ro...[Details]
There are many differences between active drive and passive drive matrices in switching power supply design. Below, the author will analyze them one by one, hoping to provide some necessary help to e...[Details]
Technical points of the standard/development ideas/context of the standard
Technical points of the standard
SJ/T 11234-2001 Software Process Capability Evaluation Model
...[Details]
With the gradual development of LED lighting, more and more customers are accustomed to taking pictures of LED lamps with their mobile phones, and determine whether the lamps are harmful to human...[Details]
Once, a boss told me that he envied those of us who work in technology. We all feel a bit ironic that a person worth tens of millions is envious of those of us who earn less than 200,000 a year. But ...[Details]
Ultrasonic thickness gauges use the latest high-performance, low-power microprocessor technology and are developed based on the ultrasonic measurement principle. They can measure the thickness of meta...[Details]
Recently, Bosch launched the first CVT transmission for electric vehicles. This transmission cable adopts an integrated design and has the advantage of lower energy consumption compared to the transm...[Details]
The US "Entity List" control has dealt a heavy blow to Huawei's overseas business, especially the sharp decline in mobile phone sales. Last year, Huawei announced that it would divest Honor to surviv...[Details]
1. Stepless voltage regulation charger
Connect a commercially available fan speed regulator (firebox thermostat) in series with the primary of the rectifier transformer, and adjust the input po...[Details]
0 Overview In the debugging test work of power system generator sets and other engineering practices, especially in the debugging work of rotating machinery, low-frequency signal generation source...[Details]
Huawei Consumer Business CEO Richard Yu recently said that due to US sanctions, Huawei's Kirin high-end chips will not be manufactured after September 15. Isaiah Research pointed out that TSMC relies...[Details]
GAC Aian announced today that it will put into production its full-stack self-developed and self-produced battery - Inpai Battery on December 12. Judging from some published data, Aian's Inpa batt...[Details]
On April 8, the reporter walked into the production workshop of Dali Electric Xiangyang Co., Ltd. (hereinafter referred to as Dali Electric), and saw workers busy on the production line. Orders have b...[Details]
Google Glass opened up people's imagination of the next generation of interaction. However, many startup products that imitated and followed the VR hype at the time have now mostly disappeared, inclu...[Details]
Recently, Silicon Labs released its third-quarter 2024 performance report, with both revenue and profit exceeding the expected median. Revenue in the third quarter was US$166 million, a 14% increas...[Details]
Analog electronics
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