[b]1. Experimental task[/b] According to the set password, use two buttons to realize the password input function. When the password is entered correctly, the lock will be opened. If the password is e...
From now until April 13, download the white paper "What You Need to Know about USB3.1" and you will have a chance to win a 50-yuan Jingdong card (35 copies in total) and have the opportunity to have y...
LMX12002 evaluation board test (output changed to 5.29V (test results, estimated to be 5.32, because the multimeter battery is insufficient) Change the resistor: Resistor: Rfbt (4.7K+1K), Rfbb 1K Ron ...
Experts, please help me, I need a design for home smoke sensor, mainly using photodiode, radio frequency circuit, cc2500 msp430 microcontroller... Thank you so much with tears...
I added an AC voltage in front. After passing through the first operational amplifier, the AC component became smaller. After passing through the second operational amplifier, it became completely DC....
[align=left][b][size=6][color=#000000][font=Times New Roman]Djyos[/font]'s portability[/color][/size][/b][/align][align=left][color=#000000][align=left] When it comes to portability, many people think...
Emergency hand-held lamps powered by 6V maintenance-free batteries are widely used in rural areas. The charger used is a transformer step-down and single diode half-wave rectifier, and the charging...[Details]
High efficiency and low standby power consumption are two major challenges in today's switching power supply design. Resonant topology or LLC topology is becoming increasingly popular because it ca...[Details]
I. Introduction
In the field of power conversion, isolated converters (forward, flyback, and double-ended) with low output DC voltage all use MOSFET as the rectifier device. Since these devi...[Details]
With the development and widespread application of computer technology, especially in the field of industrial control, computer communication is particularly important. Although serial communication g...[Details]
1. Background:
The instrument system parameter detection and control of the chemical production workshop of Tangshan Coal Gas Coking Plant are all analog instruments, some of which are eve...[Details]
1. With the development of modern industry and the continuous improvement of automation, some medium and large control systems have been greatly facilitated, which not only makes control easier, bu...[Details]
I. Introduction
Since RS232 has a short communication distance (only 15 meters according to EAT/TAI-232 standard), and can only perform point-to-point communication, it cannot directly f...[Details]
1. Introduction to CIF Board
Fieldbus integration based on PC system
Whether it is a master or a slave, fieldbus has won unanimous praise in the field of PC-based automation. For more...[Details]
The potentiometer is an adjustable electronic component. The main functions of the potentiometer in the circuit are as follows:
1. Used as a voltage divider
A potentiometer is a continuou...[Details]
Digital array radar (DAR) uses digital beam forming (DBF) in both receiving and transmitting modes to achieve flexible distribution and reception of RF signal power in the airspace, obtain excellent t...[Details]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
TC9012F is a universal CMOS large-scale integrated circuit for infrared remote control signal transmission, suitable for remote control of TV, VTR, laser player and other equipment. In the market, ...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[Details]
Printed circuit boards ( PCBs
)
are used in most electrical products
. If a PCB has low
insulation resistance
(IR), the performance of the circuits on the PCB will be greatly reduced...[Details]
LED guardrail lights use fluorescent tubes or LEDs as light sources and continuous guardrails as carriers to form an approximately linear guardrail light strip. This article mainly introduces...[Details]
DIY/Open Source Hardware
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