There are many performance indicators of power amplifiers, including output power, frequency response, distortion, signal-to-noise ratio, output impedance, damping coefficient, etc., among which outpu...
Question: What will happen if the following code is executed? #includechar *fun(void) { char p[] = "hello, world"; return p; } void main() { char *p_ch = NULL; p_ch = fun(); printf(p_ch); } At first g...
I work on industrial control software, and recently encountered an annoying problem. Our equipment uses Taian inverters. When I use the serial port debugger to debug the communication, when the invert...
[font=Tahoma,] In PCBLAYOUT, sometimes in order to make their own boards more distinctive, engineers often add some LOGOs to the PCB layout. That is, import pictures into PADS. [/font] [font=Tahoma,] ...
[i=s]This post was last edited by Xin Xin on 2015-2-3 15:06[/i] As soon as I opened the forum, I saw a post titled "In recent years, embedded processor manufacturers have also been competing hard." I ...
Select a module in the schematic, and then go to the PCB layout. The selected module should also be displayed in the PCB, but why is it not displayed? ? Please help! !...
According to the Industrial Technology Research Institute of Taiwan, due to factors such as the oil crisis and global warming, the issues of energy conservation and environmental protection have at...[Details]
A few days ago, I bought an 8LED flashlight in the market (the flashlight uses No. 5 batteries). Because I had other things to do, I didn't pay attention when purchasing it. When I got home and use...[Details]
Every time I go home and walk up the stairs, I am always scared. The corridor lights are often broken, and no one changes the bulbs, or they are not smart enough and need to be operated manually. E...[Details]
Among the uses of electrical energy, lighting accounts for a considerable proportion. Compared with the earlier ordinary incandescent lamps, the fluorescent lamps and energy-saving lamps we commonl...[Details]
Movpower is a portable power bank. It can charge most mobile phones and digital products, such as digital cameras, PDAs, and mobile phones such as Apple, iPod, Blackberry, Motorola, Samsung, Nokia,...[Details]
The capacity of a battery depends on the amount of charge and discharge, in addition to some factors of the battery itself. Obviously, if the charge and discharge of the battery can be recorded all...[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]
As a new type of centralized and decentralized elevator control system, serial communication has been widely used in China. Compared with the previous centralized and unified control system, each s...[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]
Reliability and real-time performance are the basic requirements for control systems. Initially, motor control used analog circuits with discrete components. With the advancement of electronic tech...[Details]
The total coal reserves of Inner Mongolia Autonomous Region in China have been found to exceed 700 billion tons, ranking first in the country. Its short-distance transportation mode is still mainly by...[Details]
During the operation of electronic equipment,
memory
failure or failure will not only lead to economic losses, but also may lead to catastrophic consequences. Therefore, memory testing has ...[Details]
In the process of designing electronic products, we usually control the cost of the designed products, always try to simplify the circuit, reduce the components, and simplify the installation process....[Details]
Abstract Based on the overview of the hardware design of digital synthesis sweeper, this paper describes a USB2.0 interface design based on ISP1362, including the hardware structure design of USB i...[Details]
1. Introduction
The novel bidirectional high-frequency link inverter has the advantages of bidirectional power flow, high-frequency electrical isolation, simple topology, and two-stage po...[Details]
Analogue and Mixed Signal
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