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Many people choose an economical and practical backup phone within 2,000 yuan. However, OPPO recently launched a new product, K9s, with a pre-sale price of 1,499 yuan. It focuses on powerful g...[Details]
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At present, the mainstream interface used by hard disk drives is Advanced Technology Configurator Interface (ATA), also known as IDE interface, and most hard disk drives use parallel ATA interf...[Details]
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The latest report released by Technavio, an international market research firm, shows that the global stationary lead-acid battery market size is expected to grow by US$4.86 billion from 2020 to 20...[Details]
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#define Wait1us _nop_();
#define Wait2us {_nop_();_nop_();}
#define Wait4us {Wait2us;Wait2us;}
...[Details]
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In this paper, a dual-mode pre-divider suitable for WLAN IEEE802.11a standard is designed by using dynamic TSPC structure and TSMC 90nm 1P9M 1.2VCMOS process, which has the characteristics of high spe...[Details]
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#include "reg52.h"
typedef unsigned char u8;
typedef unsigned int u16;
sbit led = P2^0;
sbit k1 = P3^1;
void delay(u16 i)
...[Details]
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Design Task
Design and make a digital capacitance meter. The functions and requirements of the system are as follows:
(1) The capacitance meter can measure capacitance less than 2μF.
(2) Th...[Details]
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0 Introduction
In the process of generating, transmitting and using electric energy, power distribution is an extremely important link. Low-voltage circuit breaker is an electrical appliance ...[Details]
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ISP Programming Procedure Notes
The program cannot be downloaded into the MCU. Possible errors include: If the preparation conditions are sufficient
(Driver installation successful, STC_I...[Details]
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SIA (Semiconductor Industry Association) announced that global semiconductor sales in 2020 were US$439 billion, a year-on-year increase of 6.5% from 2019. ...[Details]
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The official WeChat public account of the China Association for Science and Technology, "Science Popularization China", published an article yesterday to popularize the correct "posture" for ch...[Details]
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An ammeter is an instrument that measures the flow of electric current in amperes. There are two main types of ammeters: shunt and feedback.
Shunt or feedback ammeter
Shunt ammeters are the most c...[Details]
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Zhongying Electronics recently stated in an investor activity survey that the company is an international leader in the field of home appliance main control chips, among which the main control chips ...[Details]
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Since the requirements for solid crystal are extremely high when encapsulating single-electrode chips, the use of conductive glue and conductive silver glue in the solid crystal process is also extrem...[Details]
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A soft starter is an electrical device used to start a motor. Its main function is to reduce the current impact when the motor starts and reduce the damage to the power grid and mechanical equipmen...[Details]
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