Question 17: Sections 12.16 to 12.18 of "Switching Power Supply Design, Third Edition" discuss the error amplifier of the flyback converter in discontinuous operation mode and give calculation exampl...
[size=4] Yesterday I thought that the Mid-Autumn Festival would be this Thursday, and I was so happy that I could sleep in during the holiday. But when I looked at the calendar at noon, I was shocked ...
[i=s]This post was last edited by chenzhufly on 2016-2-24 11:25[/i] [size=4][color=#0000ff]Recently, the following problems occurred when debugging the Feizhu quadcopter:[/color][/size] [size=4][color...
Does Lenze have a drive that can connect multiple motors?
As the title says, one driver connects multiple motors, which requires the driver to have multiple motor interfaces, including multiple sets o...
A production line uses multiple 200W and 400W motors. Due to universal and economic considerations, all inverters are 750W. What is the basis for calculating the total power of this production line?...
I used the NCP161 chip of LDO, 5V input, 1.8V output, the circuit diagram is the same except that it recommends a 1uf capacitor, while I used 2.2uf, but after open board soldering test, I found that t...
In early 2002, I started to write a working program for an IC card prepaid electricity meter. The meter used Philips' 8-bit 51-expanded single-chip microcomputer
87LPC764
, and wa...[Details]
A single-chip microcomputer is also called a single-chip microcontroller. It is not a chip that completes a certain logical function, but a computer system integrated into one chip. In general, a c...[Details]
China's new energy vehicles are in a transition period from research and development to real industrial development. In 2012, with the intensive launch of new energy vehicle policy planning, the de...[Details]
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The way to reduce costs is
① Use the Bluetooth data transmission function of mobile ph...[Details]
From the PIC16F946 datasheet, we know that there are two ways to write values to the LCD for display:
1. Directly write the value to LCDDATA1~LCDDATA23
2. Use disconnect t...[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]
PV inverter manufacturer SMA has launched its first DC arc fault circuit interrupter (AFCI) PV inverter and has received UL certification.
The new SunnyBoy AFCI inverter models include 3000-US...[Details]
The concept of state machine
State machine is an important concept in software programming. More important than this concept is its flexible application. In a clear and efficient program, ther...[Details]
Spatial Division Multiplexing (SDM) MIMO processing can significantly improve spectrum efficiency and thus greatly increase the capacity of wireless communication systems. Spatial Division Multip...[Details]
LED lighting: Basic circuit design can be completed in as little as one day
Semiconductor manufacturers are also getting involved in the LED lighting business. The power circuit of LED req...[Details]
LED light sources have many environmental advantages, but early products still have certain technical bottlenecks in heat dissipation and high brightness design that cannot be broken through....[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]
Traditional
virtual instruments
consist of a data acquisition
board
based on PCI bus and
corresponding software. However, with
the rapid development of
computer
network techno...[Details]
With the rapid development of wireless
digital communication
, more challenges have been raised for integrated circuit design and testing. In the product design stage, in order to ensure
t...[Details]
The launch of Shenzhou IX is imminent, and Tiangong is welcoming visitors again. Yesterday, Professor Fu Qiang, Vice President of the Institute of Science and Industrial Technology of Harbin Instit...[Details]
Switching Power Supply Study Group
京公网安备 11010802033920号
EEWORLD
