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On December 31, 2019, OPPO Vice President Shen Yiren could not contain his excitement and announced a blockbuster news. He said: "Happy New Year to everyone in advance! The next time we meet will pro...[Details]
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The principle and method of suppressing 50 Hz AC noise by electron tube amplifier
1. Influence of Filament Voltage Amplifier
There is a capacitor Cf between the gate and the filament of the ele...[Details]
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Amplifier working process and composition principle:
(1) Workflow Input - Preamplifier - Driver - OTL power output - Speaker (2) Composition principle ① Preamplifier (input) The preamplifier is co...[Details]
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Many customers always mention the need for a more cost-effective device when communicating with Juchuang Environmental Protection Customer Service. Today, Juchuang’s editor will introduce you to the ...[Details]
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AccelerComm, which seeks to improve spectral efficiency and reduce latency over IP, announced that it has joined the 5G Open Innovation Lab ("5GOILab"), an ecosystem for global application innovation...[Details]
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Data is sent from the host computer (PC) to the MCU and displayed on the MCU's LED.
Experiment 1: Query Method
program:
/If the serial port sends data, the LED will light up
#include reg52.h
/...[Details]
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At present, there are two main types of display screens according to the data transmission method: one is a real-time video screen that displays the same content as the computer; the other is an inde...[Details]
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Key data on power battery production, vehicle installations and exports this month : ● Power battery production: 64.2GWh, energy storage battery production: 9.1GWh, the total of the two is 73.3GWh ...[Details]
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HaiLa announced a major breakthrough on January 12, 2024: they successfully launched the BSC2000 backscatter chip and supporting RF evaluation chip development and demonstration kit. This innovative ...[Details]
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With the increasing integration of embedded devices and networks, the introduction of TCP/IP protocol stack in single-chip microcomputer systems to support single-chip microcomputer access to the netw...[Details]
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Due to the cancellation of this year's Geneva Motor Show, BMW chose to launch its first pure electric four-door coupe, the BMW i4 concept car, online for the first time. This car will be produced in ...[Details]
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As shown in the figure below, the left side of the dotted line is the internal equivalent circuit of the function generator, which is composed of a voltage source and an internal resistance generally...[Details]
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Apple released its fourth quarter results for fiscal 2020 on October 30. The report showed that Apple's iPhone sales in the fourth quarter were US$26.44 billion, a sharp drop of 20.7% from US$33.362 ...[Details]
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1. Voltages below 36V are safe voltages. When measuring DC higher than 36V or AC 25V, check whether the test leads are in reliable contact, correctly connected, and well insulated to avoid electric sh...[Details]
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"Electromagnetic Fields and Electromagnetic Waves" is a compulsory professional basic course for undergraduate students majoring in electronics and communications. The content covered by the course i...[Details]