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Electrolytic aluminum is aluminum obtained by electrolysis. The basic principle is to use molten cryolite as solvent, alumina as solute, carbonite as anode, and aluminum liquid as cathode. After a st...[Details]
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In the environment of computers, servers and other equipment, the power supply system is equipped with high-speed undervoltage protection and thermal protection circuits. Its main function is: when...[Details]
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On the road to Industry 4.0, Adidas High Speed Factory is not the first and will never be the last explorer to fall. In the process of emerging technologies from causing revolution to becoming comm...[Details]
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1 Introduction
Frequency synthesis technology has gone through three generations: direct frequency synthesis technology, phase-locked loop frequency synthesis technology, and direct digital fr...[Details]
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In order to prepare for the electronic design competition, a set of 51 single-chip microcomputer minimum system was remade. The circuit diagram and actual picture are provided for your reference.
The...[Details]
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8W to 25W LED general lighting application requirements and solutions: without PFC and with PFC
In 8W-25W AC-DC LED lighting applications, we have to consider two cases. One is that the applic...[Details]
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There are many kinds of sensors in cars. If any of them fails, the car will have various problems. What are car sensors? Car sensors are input devices for car computer systems. They convert various...[Details]
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Today, the 2021 World Ultra High Definition (4K/8K) Industry Development Conference was held in Guangzhou. Li Dongsheng, founder and chairman of TCL Group, pointed out in his speech at the opening fo...[Details]
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On March 20, China Energy Construction Power Engineering and the People's Government of Chicheng County, Hebei Province formally signed an investment cooperation agreement for the Chicheng County g...[Details]
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(1) Assume that there is only one char global variable with an initial value, then the system will allocate a 4-byte storage space in the data area to store it. In fact, only 1 byte is used, but in or...[Details]
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ZS3087SL is a constant current and constant voltage switching power supply chip that works in discontinuous mode. This product adopts the primary feedback control mechanism. High-precision output c...[Details]
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According to foreign media reports, two sources said that Taiwan's Wistron Corporation plans to assemble iPhone printed circuit boards (PCBs) at a new factory in southern India, indicating that Apple...[Details]
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The 2020 Consumer Electronics Show (CES) in Las Vegas, the United States, officially opened. About 4,500 companies from more than 160 countries and regions participated in this electronics exhibition...[Details]
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On January 11, CATL said on the interactive platform that Kirin batteries are expected to be mass-produced in the first quarter of 2023. The company is committed to promoting the industrialization of ...[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]