Current sampling
The load current is instantaneous, ≤90mA, with a frequency of 2-100HZ, which is a low-frequency pulse current. The microcontroller is powered by 3.3V.
Question: What is the appropriat...
Whatever positive or negative bias, get out of here!!!
The transistor has three working states: cut-off, amplification, and saturation. The amplification state is very complicated and is mostly used i...
DSP fixed-point arithmetic operation1 Number calibrationIn fixed-point DSP chips, fixed-point numbers are used for numerical calculations, and their operands are generally represented by integers. The...
[i=s]This post was last edited by chenzhufly on 2022-1-23 21:16[/i]When I was writing my summary for 2021, I looked through the summaries I wrote in previous years. They were full of memories . I can’...
Design an analog-to-digital conversion board, use stm32 as the controller, plus an ADC chip, and want to use the 3.3V output of the LDO chip to power both the stm32 and the ADC. The stm32 belongs to t...
The power meter consists of two parts: a power sensor and a power indicator. The power sensor, also known as a power meter probe, converts high-frequency electrical signals into electrical signal...[Details]
Instructions are streamlined, modular, and scalable... It will take 7 years to reach the milestone of 10 billion shipments in 2022. RSIC-V is giving full play to its open and open source advantages a...[Details]
Recently, as the exposure news of Huawei nova 5 series has continued to leak out, Huawei nova 5 series has finally been officially announced. On June 11, Huawei Terminal’s official Weibo offic...[Details]
Foreign media previously reported that Apple may make an important adjustment in this year's iPhone 12 series, that is, to cancel the randomly included wired earphones EarPods. Now it seems to...[Details]
introduction
The rapid growth of motor vehicles has brought convenience to people's lives, but it has also brought problems such as vehicle management, vehicle theft prevention, and vehicle robbery...[Details]
This paper introduces the performance characteristics and working principle of a multifunctional serial chip X1288 based on I2C bus interface, gives the application method of X1288 in the design of e...[Details]
I. Overview Vector network analyzer is a common radio frequency measuring instrument, mainly used to measure the performance parameters of high-frequency devices, circuits and systems, such as linear...[Details]
This week was a bit unlucky for Uber. Not only did the company report a significant loss in its latest quarterly earnings report, but the research firm it hired used data to prove that Uber itself wa...[Details]
3 Dual Closed-Loop Control Four-Quadrant Converter
3.1 Comparison between direct current control and indirect current control
Direct current control is a control method that...[Details]
Today I tried to make the STM32 timer output a 50% duty cycle signal. I wrote a square wave initialization function according to the routine. The routine used the STM32's own library function. Because...[Details]
The energy replenishment problem that troubles electric car owners will be solved! For electric vehicle owners who need to travel long distances, the problem of energy replenishment has always been...[Details]
1.Flash types and characteristics: Flash is generally divided into nand flash and nor flash. Their respective characteristics are as follows: - Nor NAND XIP (execution on chip) yes no Performanc...[Details]
After reading the examples in the CD that comes with the mini2440, the C language program to light up the LED is a bit complicated. When I opened the project and saw so many files, I was stunned. For...[Details]
The ultra-small MAX1682/MAX1683 monolithic voltage doublers with CMOS charge pumps accept input voltages ranging from +2.0 V to +5.5 V. Their high voltage-conversion efficiency (over 98%) and low oper...[Details]
Planning systems are becoming more and more complete, projects related to new power systems are coming one after another, and companies are integrating and innovating across industries, with power gri...[Details]
Discrete Device
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