Hello everyone: This circuit seems to be a phase detector, which can separate the real part (R) and imaginary part (Xc) of impedance Z into a DC voltage output. The following is my understanding: U4C ...
I used Microsoft's built-in WIFI configuration program and tried to connect to a hotspot (TKIP+WPA2-PSK) with the wrong password. The second time it prompted "Reauthenticating chenj..." it stopped (if...
[i=s]This post was last edited by qwqwqw2088 on 2016-5-2 20:46[/i] 1. The selection of pointer meter and digital meter: 1. The reading accuracy of the pointer meter is poor, but the process of the poi...
Why does the sck of spi2 of stm32103VC not have waveform output, but mosi has waveform output? I changed two chips and it's still the same. I'm so depressed. [/size][/backcolor]:Sweat: Why is it like ...
Why doesn't the mplab+picc compiler prompt the error location after the compilation fails? I need to find the error word by word. How should I set the compiler options? I'm new to PIC, please help me ...
The reason is that I didn't know anything when I was setting up the computer, and there was no serial or parallel port. Later, I found that there were external serial and parallel ports on the motherb...
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]
Assume that data is read from 8-bit AD (if it is a higher-bit AD, the data type can be defined as int), the subroutine is get_ad();
1. Limited secondary filtering
/* A value can be adjust...[Details]
Do you often have to add brake fluid to your car's brakes? The fact that you need to pump out the brake fluid to make sure there is no gas in the brake fluid line may not be done by the car owner h...[Details]
Floating-point digital signal processing has become a constant requirement for precision technology, often in applications requiring high accuracy in areas such as aviation, industrial machinery, a...[Details]
1 Introduction
Solar street lights are mainly composed of four parts: solar photovoltaic cell components, batteries, charge and discharge controllers, and lighting fixtures. The bo...[Details]
Introduction
Power subsystems are becoming more and more integrated into the overall system. Power systems have moved from being separate "essential dangerous devices" to being monitorable...[Details]
For a long time, due to the limitation of hardware conditions, the display devices of traditional small handheld devices such as PDA are usually monochrome LCD, and the user interface is very simpl...[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]
Since the No. 4 blast furnace of Handan Iron and Steel was put into operation in 1993, its external equipment has been seriously aged, and the original PLC control system TDC3000 of the hot blast furn...[Details]
Overview
In spectral measurement, photomultiplier tubes (PMT) and charge-coupled devices (CCD) are often used as photoelectric converters. PMT is used in slow-changing, high-precision spectral...[Details]
1. Disadvantages of choosing too high a voltage level
Choosing too high a voltage level will result in too high an investment and a long payback period. As the voltage level increases, the...[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]
System Overview
The system consists of a signal preprocessing circuit, a single-chip computer AT89C2051, a systematic LED display module, a serial port data storage circuit and system software...[Details]
Abstract: In order to realize wireless automatic alarm and monitoring of major safety places, based on the basic principle of pyroelectric infrared sensing, a detector for receiving infrared radia...[Details]
This article discusses the six design steps of LED lighting system design in detail: (1) determine the lighting requirements; (2) determine the design goals and estimate the optics; (3) the efficie...[Details]
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