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Selection of power meter: Most power meters are electric. Because they need to reflect voltage and current factors, the actual voltage must be less than the withstand voltage of the voltage coil, and...[Details]
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1. Reasons why the frequency of the inverter cannot be adjusted
1. Power supply problem: If the power supply voltage is too low or the power supply frequency is unstable, the inverter will fa...[Details]
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Innovation is a core capability that all industries in modern society are pursuing. In the field of flat-panel TVs, technological innovation can not only bring leading products to enterprises, but ...[Details]
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1. Addition (affects C, AC, OV, etc.) ADD A, Rn---(@Ri, direct, #data) ADDC ------------------------------------------ 2. Subtraction SUBB A, ------------------------------------------ 3....[Details]
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Translated from EEtimes While some semiconductor sectors showed signs of recovery, the automotive industry continued to suffer as the pandemic stretched into the summer of 2020. As Marvell and se...[Details]
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Aiming at the currently popular wireless lavalier microphone application, Microsource Semiconductor's LP7811+LP4081 charging solution can charge a transmitter and a receiver at the same time. It us...[Details]
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The band edge of wireless communication products usually refers to the clutter signal of 1MHz around the edge of the entire frequency band. The energy in this frequency band is not fixed, and the ...[Details]
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DC resistance tester screen interface layout 1Battery power: Display the current battery power of the instrument; 2Bluetooth logo: indicates that the instrument Bluetooth is turned on; 3. Ins...[Details]
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The car-mounted LED display is a product that uses LED technology, GSM/GPRS technology, low temperature technology, anti-static technology, anti-interference technology, and car-mounted electronic tec...[Details]
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#include "reg52.h"
#include "intrins.h"
typedef unsigned int u16;
typedef unsigned char u8;
#define led P2
u16 right;
void delay(u16 i)
{
while(i--)
...[Details]
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This paper proposes an intelligent voice system that uses ATmega8 microcontroller to control ISD2500 series voice chips. This system is flexible to use, easy to upgrade functions, and has good applic...[Details]
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1. RFID Overview RFID, also known as contactless IC card or ID tag, can detect and identify specific objects without direct contact with the object. RFID has been used since the 1980s, initially limi...[Details]
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The 125W Class D subwoofer power amplifier circuit designed with the newly launched LM4651 and LM4652 of National Semiconductor is shown in the figure. The output power of the amplifier is 125W under...[Details]
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Different from chips for other purposes, automotive-grade chips have an independent set of specifications and standards applicable to automotive electronic components, such as an operating temperat...[Details]
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I searched online for some examples and methods of accurate delay (relative) in C language for C51 microcontrollers.
The summary is as follows:
1. _nop_() is suitable for small delays at the us l...[Details]
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