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Most LED power supply circuits are composed of a switching power supply circuit + a feedback circuit. The feedback circuit samples the load and adjusts the duty cycle or frequency of the switching ...[Details]
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Below is the circuit diagram for a low cost 12V stereo tone control that comes in a kit that you can find at an electronics parts store near you.
This circuit is built on a common tone c...[Details]
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I don’t know if you have noticed that there have been more and more news about Apple’s quality issues in recent years. Last year, the iPhone 12 was returned and exchanged on a large scale by consumer...[Details]
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MediaTek's chips have always been controversial among netizens, but a closer look reveals that its business group layout announced in early 2019 is already very clear, and it is not "just a mobile ph...[Details]
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With a tap on your phone, you can control your home appliances on the road and enjoy hot water and heating when you get home. This scenario will gradually become a reality in Liaoning Province. On ...[Details]
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#include "stm32f10x.h"
/***********************************************************************
************************************************************************/
GPIO_InitTypeDef GPIO_InitS...[Details]
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1 Introduction
In order to increase the interest of MCU enthusiasts in learning MCU, Lingyang University of Technology Education Promotion Center launched an intelligent robot using SPCE061A as...[Details]
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ADL5354 is a highly linear double balanced (RF and LO balanced) RF mixer with input frequency from 2300 MHz to 2900 MHz. The balanced passive mixer has good LO-RF leakage, better than -35dBm. The I...[Details]
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On the morning of April 28, the Huai'an Salt Cavern Compressed Air Energy Storage Power Generation Project was launched. Shi Zhijun, secretary of the municipal party committee, attended and announced ...[Details]
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The remote operation of relay protection, automatic devices, signal devices, emergency lighting and electrical equipment in the substation generally adopts DC power supply, so the output quality an...[Details]
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Using power lines as channels for communication is a good way to solve the last mile problem. However, as a communication channel, power lines have the characteristics of high noise, multipath effe...[Details]
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Maintenance
personnel
with a solid foundation in electronic technology and hardware
are full of confidence in maintenance work. However, if the method is not appropriate, the work will s...[Details]
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1. What is watchdog? Watchdog, in Chinese, is called "watchdog", and its full name is watchdog timer. From the literal meaning, we can know that it is actually a timer. However, it is different from ...[Details]
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Microsoft said on Thursday it would wait for federal regulations before selling facial recognition technology to police, Reuters reported, adding that it was the latest major company to announce a ha...[Details]
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If it weren’t for the epidemic, our lives seem to have been programmed. In the past, at the beginning of each year, I would be busy running around the CES while lazily preparing for the upcoming S...[Details]