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In the 4G era, China Telecom's mobile phones will not only be compatible with the traditional CDMA standard, but will also be compatible with FDD LTE and TD-LTE.
As 4G licenses are about to be is...[Details]
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A frequency meter is an instrument for measuring frequency or time interval information. It has high accuracy, low price and unique design. High-precision measurement can be achieved using only a...[Details]
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4 Ways to Remove Virus Threats from MP3 Devices
Today's digital products are becoming more and more popular, which will gradually attract the attention of more virus makers. Perhaps wh...[Details]
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In the process of switching power supply circuit design or circuit testing, the inductance of the coil or wire and the number of turns of the coil are often calculated in order to adjust and i...[Details]
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introduction
Among various single-phase PFC circuit topologies, Boost circuits are widely used due to their simple structure, high conversion efficiency, and easy control. High-frequency methods ca...[Details]
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Preface
High-brightness LEDs are highly efficient and reliable, and are a very promising low-energy power source. Due to the large range of forward voltage variations of LEDs and t...[Details]
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Current transformers measure current or transfer energy from one circuit to another, so their design requires different calculations than the corresponding voltage transformers. The reason for this ...[Details]
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Apple is probably a sleeping lion - shenzhenware - From May 29 to 31, the Augmented World Expo (AWE) will be held in Santa Clara, California, USA. As a benchmark event in the field of AR/VR technolog...[Details]
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From the physical Home button to the introduction of fingerprint sensor, to the upgrade to Touch ID, and finally to the Face ID 3D facial recognition solution of iPhone X, iPhone has been constantly ...[Details]
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The C8051F
series of microcontrollers
launched by Cygnal Corporation of the United States
has pushed the 51 series of microcontrollers from the MCU level to the SoC era. In particular
...[Details]
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If the MCU has no IO, what is the use of it? STM8 is an 8-bit MCU series. One IO Port generally includes 8 pins. Each pin can be independently programmed as a digital input or digital output port (...[Details]
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With the development of electronic technology, Electric Power Steering ( EPS ) is becoming more and more widely used as a replacement for traditional hydraulic power steering (HPS) and electro-hy...[Details]
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Formation of PN Junction
On a complete silicon wafer, different doping processes are used to form an N-type semiconductor on one side and a P-type semiconductor on the other side, so a PN junction ...[Details]
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Solid-State Fidelity™ and DynamicVent technologies will revolutionize the True Wireless Stereo (TWS), In-Ear Headphones (IEM) and Hearing Aid markets with superior audio experience and enhanced l...[Details]
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1. What is the principle of parking radar?
The parking radar system determines the distance between the front or rear bumper and obstacles using ultrasonic sensors.
2. Where is the parkin...[Details]
Microcontroller MCU
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