u8 sd_raw_get_info(struct sd_raw_info* info) { ... } How do I use this subroutine? For example, u8 mmcWrite(u32 sector, u8* buffer), I only need to define unsigned char SD_Write1[]={"0123456789"}; in ...
[i=s]This post was last edited by nos001 on 2019-7-21 21:55[/i]The UC3843 BUCK step-down circuit works normally at no-load and low current. From the current sampling using 1R, it can be seen that the ...
The infrared LED used in the remote control is not completely infrared light, but also contains some visible light (red) components, so the naked eye can see a little light. The LED used in the remote...
I have a client program in WinCE 6.0. It calls InitializeSecurityContext twice to authenticate with Google server. The first call returns SEC_I_CONTINUE_NEEDED, and the second call returns SEC_E_WRONG...
【Virtual Instrument Competition】Medical Service Robot : https://training.eeworld.com.cn/course/1921The work of the 2015 National Virtual Instrument Competition of University of Shanghai for Science an...
First send a high level of 30ms, then send a pulse wave with a period of 15ms, the duty cycle is 2/3, assuming the clock is 1kHz. This has troubled me for a long time, I hope you can give me some advi...
In recent years, the market for mobile/portable devices such as smartphones and laptops has continued to grow rapidly. While these products continue to integrate more new features to enhance the ...[Details]
In public places such as schools, government agencies, factories and mines, as well as public corridors in residential areas, the phenomenon of long-burning lights is very common, which causes a h...[Details]
1. Introduction
Light control circuit plays a vital role in urban street lamps or corridor lighting. With light control circuit, the lights can be automatically turned on and off according to ...[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]
Since the late 1990s, with the demand for higher system efficiency and lower power consumption, the technological update of telecommunications and data communication equipment has promoted the deve...[Details]
Leakage current is generated by parasitic resistance paths between the measurement circuit and a nearby voltage source. This current can significantly reduce the accuracy of low current measurement...[Details]
Rated capacity refers to the maximum output power of the UPS (the product of voltage V and current A).
Usually, the UPS power supplies sold on the market are marked with "W" (watt) for smaller...[Details]
Current
measurement:
Magnetic balance Hall current
sensor
is used
. The sensor can measure AC from DC to 100kHz.
In automatic measurement and control systems, it is often nec...[Details]
1 Introduction
Lijia'an Yellow River Diversion Culvert is a large gravity diversion gate in the lower reaches of the Yellow River. The Yellow River Diversion Culvert is located in Lijia'an Vi...[Details]
In the development direction of the automotive industry, electric vehicles (EV) and hybrid electric vehicles (HEV) are becoming an obvious trend. From a technical point of view, hybrid power is mor...[Details]
As we all know, the manufacturing of modern automobiles is divided into four major processes: stamping, welding, painting and assembly, and the powertrain constitutes five inseparable production pr...[Details]
The circuit has overcharge protection, over-discharge protection, over-current protection and short-circuit protection functions. Its working principle is analyzed as follows:
1 Normal state
...[Details]
1 Overview
As a driving power source, the new battery has a range of more than 200 km within the acceptable weight range of the mass market, which provides an important way for power batteries...[Details]
The Challenge:
Providing a flexible, powerful robotics design platform
to more than 40,000 high school students participating in the FIRST
Robotics
Competition (FRC).
The So...[Details]
When selecting EMC test equipment, we often encounter the following questions: What is the difference between an EMI receiver and a spectrum analyzer? Why should a receiver be used for EMI testing?...[Details]
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