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The automatic switch in the 400Hz low pass Butterworth filter circuit is used for the cut-off frequency of 400Hz, which can be expanded by changing the proportional value of the frequency.
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ORG 0000H
AJMP MAIN
ORG 0030H
MAIN:
MOV 77H,#0FH
MOV 78H,#42H
MOV 79H,#40H
MOV 7AH,#00H
MOV 7BH,#03H
MOV 7CH,#0E8H
LCALL DIV_MB
SJMP MAIN
;======= =================================...[Details]
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In power installation projects, if the RLC series circuit produces parallel resonance, when the series resonance working voltage on both sides of the inductor or capacitor is too high, it will penetr...[Details]
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It has been 6 years since Gree released its first smartphone. During this period, Gree Electric has launched a number of mobile phone products one after another, but they have always been lukew...[Details]
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On December 15, the Shenzhen Stock Exchange issued a regulatory letter to TCL Technology shareholder Li Dongsheng. The regulatory letter showed that because Li Dongsheng sold the company's shares dur...[Details]
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Working principle of generator protection system
Generator protection is the safe operation of the generator, which plays a decisive role in ensuring the normal operation of the power system a...[Details]
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According to foreign media reports, Fujitsu Semiconductor Memory Solution announced that it has begun mass production of the 4Mbit FRAM (Ferroelectric Random Access Memory) MB85RS4MTY, which can op...[Details]
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Driven by lifestyles such as outdoor travel and outdoor live broadcasting, outdoor energy storage power supplies are becoming a hot favorite in the market. Among them, whether the dedicated co...[Details]
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Development Environment Hardware platform: FS2410 Host: Ubuntu 12.04 LTS LED lamp schematic diagram Button schematic diagram Wiring resources for buttons KSCAN0 - GPE11 KSCAN1 - GPG6 KSCAN...[Details]
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With the development of power electronics technology, the harmonic problems caused by power electronic devices have a great impact on the safety, stability and economic operation of the power grid....[Details]
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Schematic diagram:
The c51 microcontroller program is as follows:
#include reg51.h
#define UCHAR unsigned char
#define UINT unsigned int
UCHAR table = {0x3f,0x06,0x5b,0x4f,0x66,0x6...[Details]
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Many car experts are familiar with electronic rearview mirrors, but the development of electronic rearview mirrors has been at a standstill because relevant laws and policies do not allow them to be ...[Details]
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1 Introduction
At present, most of the hardware circuits are used to linearize the nonlinear temperature characteristics of thermistors, and then sent to the single-chip microcomputer for meas...[Details]
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The US Federal Communications Commission (FCC) has issued a series of policies to exclude and divest Huawei's services in the United States, which has aroused dissatisfaction among small and medium-s...[Details]
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Figure 2a - Equivalent circuit of Si:H solar cell
Figure 2 shows the equivalent circuit of a-Si:H solar cell. IL is the photocurrent, Id is the dark current of the diode, Rsh is the parallel res...[Details]
Microcontroller MCU
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