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Many LED lamps are advertised as dimmable, but in reality, the performance of many LED lamps is not very ideal and varies depending on the dimmer used and the circuit load. Sometimes, when LED lamp...[Details]
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According to the announcement of the review results of the 23rd meeting of the Mergers and Acquisitions Committee of the China Securities Regulatory Commission in 2020, Jiangfeng Electronics' issuanc...[Details]
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May 7, 2024, China -
STMicroelectronics' LDH40 and LDQ40 industrial and automotive regulators can start up at a minimum input voltage of 3.3V, operate up to 40V, and have low quiescent
curr...[Details]
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Today, Zhuan Zhuan, a second-hand trading platform created by 58 Ganji Group, announced the 2020 "Brick First Prize", and models from brands such as Huawei and Xiaomi were on the list. The winner o...[Details]
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According to the datasheet of the PIC12F617 microcontroller , the operation timing of FLASH has been clearly written. We only need to perform a series of configuration and read and write timing operat...[Details]
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Abstract: Aiming at the contradiction between the fixed switching frequency and the control speed of the existing PWM current mode control method, this paper proposes a quasi-fixed frequency hyster...[Details]
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For ordinary PCI boards, neither the hardware structure of the bus nor the operating system (such as Windows serial operating system) supports hot plugging. When mass-producing PCI boards, the PCI bo...[Details]
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1. Project Overview 1.1 Introduction The GSM wireless intelligent transformer integrated alarm system based on AVR designed in this project aims to provide a wireless intelligent transformer inte...[Details]
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China Energy Storage Network News:
The primary energy of the new power system will change from storable and transportable fossil energy to wind and solar energy that cannot be stored and tr...[Details]
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Last time we talked about using an oscilloscope to measure the signal of the car's air flow meter. This time we will talk about using an oscilloscope to measure the car's oxygen sensor. The oxygen se...[Details]
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In people's daily lives, the importance of batteries is becoming more and more prominent, mainly reflected in two major application areas: first, consumer electronics products represented by mobile p...[Details]
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introduction
Nowadays, embedded devices exist in every corner of people's lives, such as DVDs, mobile phones, MP3s, and PDAs. Most of these embedded devices use 32-bit RISC embedded proces...[Details]
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At this year's I/O developer conference, Google showed off a new "Now in Android" app for developers, which is designed to help developers understand all areas of Android development and showca...[Details]
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According to foreign media reports, it looks like Volkswagen has introduced R2-D2 elements to one of its Golfs. It is learned that Volkswagen has debuted a holographic control system in the Golf GTI ...[Details]
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1. Set obj and src
ifneq ($(OBJTREE),$(SRCTREE))
ifeq ($(CURDIR),$(SRCTREE))
you :=
else
dir := $(subst $(SRCTREE)/,,$(CURDIR))
endif
obj := $(if $(di...[Details]