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The 49MHz FM transmitter is composed of an audio amplifier, a low pass filter, three RF stages and a regulated DC power supply. The output is approximately 16mW into a 50Ω load. The transmitter can b...[Details]
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What is a single-chip microcomputer? Generally, we refer to a single-chip microcomputer as a single-chip microcomputer. It is not a chip that completes a certain logical function, but a computer sy...[Details]
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Mobile backup power supplies solve the outdoor power supply needs of digital products, and use natural renewable energy conversion and energy storage or household electricity storage to solve the o...[Details]
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1. General Situation
The terrestrial transmission system adopted by Japan is not limited to the transmission of digital television (image and audio) alone, but also includes independent sound ...[Details]
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First, let’s connect the pin diagram of the microcontroller. If so, the specific functions are introduced below. The 40 pins of the microcontroller can be roughly divided into 4 categories: power, cl...[Details]
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This paper compares the amplification mechanism of analog small signals and the transfer characteristics of the NOT gate in digital circuits, proposes the idea of using the NOT gate to amplify anal...[Details]
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New energy vehicles
The development is in full swing, and the issue of energy replenishment has also become one of the issues that the industry pays full attention to. When everyone is arguin...[Details]
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#include
#include string.h
#include stdio.h
#define uchar unsigned char
#define uint unsigned int
#define long unsigned long
#define ushort ...[Details]
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In the past few years, the term "new four modernizations" of automobiles has been deeply rooted in people's minds. In the era of "new four modernizations" represented by intelligence (ADAS Autonomous...[Details]
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Recently, Xiaomi has been focusing on offline channel construction and opening stores crazily, presenting a grand scene of thousands of stores opening at the same time. The new Honor, after becoming ...[Details]
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The portable thermal instrument calibrator (hereinafter referred to as the "calibrator") is a new type of thermal instrument calibration device developed by us. This product adopts large-scale integra...[Details]
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An oscilloscope is a commonly used electronic instrument, mainly used to observe and measure various electrical signals. In conjunction with various sensors to convert non-electrical quantities into ...[Details]
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Insulation resistance meter is commonly known as megohmmeter, or megohmmeter, high resistance meter, insulation resistance tester, etc. Insulation resistance meter is a widely used instrument for tes...[Details]
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Compared with the Earth, the lunar environment poses many constraints and challenges to human activities.
"Astronauts' bodies are very capable, but they can struggle on the moon, where gravity...[Details]
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0. Introduction
Fans are general-purpose machines, which are widely used in various sectors of the national economy. Fans are widely used in ventilation, dust removal and cooling of factories, ...[Details]
PCB Design
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