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1. Circuit Principle Introduction
This small fast charger can charge two No. 5 or No. 7 batteries at the same time. It is equipped with a charging indicator light to indicate the charging stat...[Details]
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On June 20, 2021, Samsung Electronics submitted a patent application for "Foldable and Sliding Electronic Devices" to the World Intellectual Property Organization (WIPO), and officially announce...[Details]
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The United States is expected to approve a $1.9 billion bill to fund a plan to dismantle telecommunications network equipment, and is also expected to support $3.2 billion to provide emergency broadb...[Details]
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As energy costs rise and consumers become more aware of energy conservation in home appliances, governments around the world have introduced stricter energy efficiency standards or high energy ef...[Details]
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This paper introduces the design and production of a portable power system with strong versatility and low cost. The system has two power supply modes. It can be powered by an external power supply...[Details]
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introduction
High-frequency signal source design is an important part of 3D induction logging. The principle of 3D induction logging is to use an excitation signal source to transmit high-...[Details]
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On the afternoon of March 10, some netizens reported that the Apple Store could not be opened and Apple Weather also had a system failure. Sina Technology called Apple officials, and the customer ser...[Details]
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Precautions for using a multimeter
(1) Before using the multimeter, you should first perform a "mechanical zero adjustment", that is, when there is no electricity to be measured, make the multimeter ...[Details]
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A wattmeter is a combination of an ammeter and a voltmeter. It measures voltage and current and determines the resultant power. Electricity is measured using an instrument called a wattmeter. A pow...[Details]
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As the lifeline of the national economy, the power grid involves all aspects, and its scientific and technological innovation capabilities are crucial to the sustainable development of the economy ...[Details]
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Diodes Corporation (Diodes) has launched a series of low-voltage, high-sensitivity Hall effect latches that meet automotive specifications. The AH171xQ series devices can be used for brushless DC (B...[Details]
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VHF module properties
This module is a highly cost-effective wireless voice intercom and data transmission module, with built-in high-performance RF transceiver chip, microcontroller and...[Details]
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According to people familiar with the matter, TSMC and its suppliers plan to send hundreds of additional employees from Taiwan to Arizona in the United States to speed up the construction of factorie...[Details]
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The current cold cathode fluorescent tube technology is very mature, and its life span is 30,000 to 50,000 hours, but cold cathode fluorescent tubes also have many disadvantages. First of all, the ...[Details]
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A soft starter is an electrical device used to start a motor. It can effectively reduce the current shock when the motor starts, extend the service life of the motor, and improve the stability ...[Details]
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