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This article mainly discusses the principle of waveform three-dimensional mapping, and uses the ZDS oscilloscope to explain the significance and corresponding functions of grayscale display and color...[Details]
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In addition to meeting safety requirements, the LED drive circuit should have two other basic functions. First, it should maintain constant current characteristics as much as possible, especially ...[Details]
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"The innovation atmosphere of China Southern Power Grid is very good. It is the first in the power industry to propose the construction of a 'digital grid', which not only echoes the 'Digital China...[Details]
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CT scan shows that there is thickening and hardening of the cortex in the upper part of the lesion. Peripherally, there is an amorphous mineralized soft tissue component with a lobed shape, which is ...[Details]
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IT Home reported on August 1 that domestic manufacturer Anker recently launched an Apex 12-in-1 Thunderbolt Quad Docking Station. The product uses a full metal shell, is equipped with many inte...[Details]
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NXP
Semiconductors
NV (Nasdaq: NXPI)
today announced the launch of its new generation of
GreenChip
™
power solutions
, with standby power consumption of less tha...[Details]
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Contents The invention belongs to the technical field of flow measurement and relates to a gas ultrasonic flow meter. Background of the Invention As an emerging flow meter, ultrasonic flowmeter has...[Details]
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When testing high-voltage diodes, you can use the multimeter's R×10k range to measure its forward and reverse resistance values. For normal high-voltage diodes, its forward resistance value is grea...[Details]
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The latest report from research firm DSCC states that the momentum for TV panel demand is weak, and panel prices continued to fall in August and September. As a result, the price forecast for the end...[Details]
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There are two types of switching power supplies. The power loss problem of current mode switching power supplies causes problems in high current and high density applications. This article mainly d...[Details]
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1 Working principle of turbine
The turbine flowmeter consists of a turbine, bearings, preamplifier, and display instrument.
The principle diagram of the turbine flowmeter is shown in Figure 3-...[Details]
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This article introduces how to use an oscilloscope. There are many types and models of oscilloscopes with different functions. The 20MHz or 40MHz dual-trace oscilloscopes are more commonly used in ...[Details]
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As a global leading integrated circuit finished product manufacturing and technology service provider, Changdian Technology has been deeply involved in the field of advanced packaging for many year...[Details]
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#include "reg51.h"
char disp ={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x40};
char disp_dot ={0xbf,0x86,0xdb,0xcf,0xe6,0xed,0xfd,0x87,0xff,0xef,0xc0};
sbit DQ = P1^3; //define commu...[Details]
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With the continuous development of integrated circuit technology, high-performance operational amplifiers are widely used in various circuit systems such as high-speed analog-to-digital converters (A...[Details]
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