We spent a lot of effort to make a program on VC6.0 some time ago, and now we want to port it to EVC. There should be no problem with the dialog box and other controls, but the following problem occur...
My classmate is studying MCU and wants to buy a laptop in Shijiazhuang. His original words are: [color=#FF0000] It doesn't need to be too well configured, but it needs to have serial and parallel port...
[indent][align=left]Digital systems are usually divided into information processing units and control units. The information unit mainly transmits and calculates information, while the main task of th...
[align=left][color=rgb(102, 102, 102)][font="][size=14px]Some old drivers said that CC2640 has PWM. Can the mobile phone APP control the PWM output? [/size][/font][/color][/align][align=left][color=rg...
First of all, the hardware is 2440, and wince5.0 runs very well, that is, it can connect to ActiveSync4.5. Phenomenon: When connecting the PC and the device with USB, 1. The Anchor USB EZ-Link Cable d...
A few days ago, I read a post about a netizen who invested 200,000 yuan in the financial market. Because I hosted the development of a futures trading system software a few years ago, I had a lot of c...
At present, the development of wireless power supply technology for electric vehicles (EVs) is becoming more and more active. In 2012, Volvo of Sweden established Volvo Technology Japan in Tokyo as...[Details]
Automotive applications are particularly sensitive to EMI events, which are unavoidable in a noisy electrical environment consisting of a central battery, bundled wiring harnesses, various inductiv...[Details]
In order to highlight the concept of "energy saving and environmental protection" of intelligent buildings, solar street lights are designed for intelligent communities. The inclination and capacit...[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]
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]
Although it is relatively easy to check the stability of a simple amplifier at lower frequencies, it may be much more difficult to evaluate the stability of a more complex circuit. This artic...[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]
VP2188 is a color STN LCD module produced by Jingdian Pengyuan. This module is a dot matrix transmissive color STN display screen with a color scale of 65 k colors and white LED backlight. Its core...[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]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[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]
OC faults may be the most frequent and the most frequent of all faults in the inverter. They alarm during the startup process, during the shutdown process, during operation, and even when powered o...[Details]
Preface
In recent years, white light LEDs have gradually replaced incandescent bulbs and fluorescent lamps because they have unparalleled advantages over traditional light sources in terms...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
0 Introduction
With the rapid development of social economy and science and technology, electric locomotives, subways and electric vehicles will be widely used. The power conversion and cont...[Details]