We do not need to introduce the importance of DC converter in circuit design. Its main function is to convert the voltage into a fixed and effective voltage based on different functions,DC-DCConverter also has a variety of categories. Its main application fields are distributed in digital cameras and mobile phone portable products. A large amount of use makes some common problems in the
Author: Texas Instruments Richard Nowakowski and Brian King
The benefit of increasing the switching frequency is obvious, but there are some shortcomings, designers should understand the pros and cons, in order to choose the most suitable switching frequency to be applied. This practical article will explain these considerations one by one.
DC power converters with high switching frequencies are becoming popular because they can save board space with
PreviousArticleI introduced the DC and introduced the official description and features of the DC. At the beginning, I will start with the actualCodeProject to gradually introduce a DC-based procurement system,
First, we first use the Microsoft ide tool vs2005/2008/2010 to build an xaf application.ProgramHere, I use vs2010 to create an xaf winform desktop appli
queue, causing a continuous window redraw. CPaintDC can only be used in WM_PAINT message processing. 2 CClientDC classthe CClientDC class is also a derived class of the CDC class. It can only be plotted in the client area of the window (that is, in the window except for the border, the title bar, the menu bar, and the middle part of the status bar), the coordinate point (0,0) usually refers to the upper-left corner of the customer area. Its constructor calls the GEGDC function, and the destruct
First, the principle of DC circuit
(1) Buck type converter
Brief analysis: During the opening of the switching tube s, the current is charged to the capacitance C through the switch tube and inductance.
When the switching tube s is off, the filter capacitance C is charged to r, because the inductor current cannot be mutated, through the RC circuit, D discharge
Brief calculation:
When the switch tube is on, there is
Reduction can be obtained inducta
Differences between LVS and DC-DC Devices
Dcdc means DC to DC (to) DC (conversion of different DC power supply values), as long as it complies with this definition, it can be called dcdc converter, including ldos. However, the g
HDC hscrdc, hmemdc; // screen and MEM DC
Hbitmap, holdbitmap; // handle of Bitmap
Int xscrn, yscrn; // the resolution of Screen
Int NX, NY, nx2, ny2;
Int nwidth, nheight;
Nx = rect. Left;
NY = rect. Top;
Nx2 = rect. Right;
Ny2 = rect. bottom;
Hscrdc = createdc ("display", null); // create DC for Screen
Hmemdc = createcompatibledc (hscrdc); // create compatible mem DC
DC-DC DC Voltage Converter
It includes boost, Buck, boost, Buck, and reverse structures, featuring high efficiency, high output current, and low static current. The disadvantage of this type of power supply controller is that the Output Ripple and switch noise are large, and the cost is relatively high.
Low dropout regulator for low-voltage differential Linea
The power ripple index of the DC/DC module is an important parameter. A clean power supply is a prerequisite for the stable operation of the digital circuit and an important guarantee for the parameters of the simulator. To determine the power quality, the Output Ripple of the DC/DC module must be measured. However, th
Can the IP address and computer name of the DC be changed arbitrarily? The answer is certainly not. Here's how to change the IP and computer name of a DC.One. Change the domain controller IP address. (Don't forget to change the DNS server in DHCP after you've finished changing it!)1. Querying the IP address of the domain controller and the DNS server address650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/54/44/wKioL1R9gxaBftg7AAHRFVir_ng662
of hardware. Dc/os solves this problem by managing containers, common applications, big data applications in the same framework, sharing resources, and simplifying operations.This article will show you how to run an application based on the Dc/os smack and how each component in the smack is integrated.Overall architectureis the overall architecture of a classic application based on smack. This application
Source: http://blog.sina.com.cn/s/blog_6035432c0100hc8y.html
The previous article has explained the DC motor Drive, how to make it forward, reverse and stop, and a detailed talk about the H-bridge principle. Today write here how to control the speed of the DC motor with a single chip microcomputer.
DC Governor is to adjust the speed of the
What is the function of the diode in AC DC power? Output voltage? The output current is determined by the maximum rated current of the diode. The 1n4007 diode (Universal Silicon Rectifier diode M7) is rated at 1 A and the output current is less than 1 a.
If you want to understand it, talk about it from the AC power.220 Volts AC Point has two lines, a 0 line, his voltage is always 0 volts, the other is the FireWire, the voltage is changing, a moment is
) CPaintDC can only be used in the WM_PAINT message processing penalty.CWINDOWDC:(1) Drawings can be drawn in the non-client area , and CCLIENTDC,CPAINTDC can only draw graphics in the customer area.(2) The coordinates origin is in the upper left corner of the screen, and the CCLIENTDC,CPAINTDC coordinates origin is in the upper left corner of the client area.(3) Contact a specific window, allow the creator in the target window of any project group to draw, including the gap and the topic, this
of hardware. Dc/os solves this problem by managing containers, common applications, big data applications in the same framework, sharing resources, and simplifying operations.This article will show you how to run an application based on the Dc/os smack and how each component in the smack is integrated.Overall architectureis the overall architecture of a classic application based on smack. This application
To enable applications to place output in memory rather than sending it to an actual device, use a special device context for bitmap operations called a memory device context. A memory DC enables the system to treat a portion of memory as a virtual device. it is an array of BITs in memory that an application can use temporarily to store the color data for bitmaps created on a normal drawing surface. because the bitmap is compatible with the device, a
This video tutorial is the 15 new DC Datacenter Data Center full set of video tutorials, including (storage/ucs/nexus/vsphere) Four parts,as long as you master this four tutorials can build the entire data center structure, such as: Core network-storage-Blade Server-Virtualization (Cloud architecture)15 new DC Datacenter Data Center full set of video tutorials (part 1th)-Storage:15 current Ming party. Stora
Overview
With the development of science and technology, power electronic equipment and people's work, life, and the relationship between the increasingly close, and electronic equipment can not be separated from the reliable power supply, so the DC switching power supply began to play a more and more important role, and successively entered a variety of electronic, electrical equipment fields, program-controlled control equipment, such as power supp
Case Introduction: Why do I need more than one DC?1. Select a domain account to log on to client win 7 and remember the user name;650) this.width=650; "Src=" Http://s5.51cto.com/wyfs02/M01/8A/45/wKioL1gsUHaCPAspAAAyLWDFsOI073.jpg-wh_500x0-wm_3 -wmp_4-s_1017797234.jpg "title=" 8-1.jpg "alt=" Wkiol1gsuhacpaspaaaylwdfsoi073.jpg-wh_50 "/>2. Modify the user's password on the DC ;650) this.width=650; "Src=" Htt
The principle of PWM voltage regulation and speed regulation for DC motorThe expression of the DC motor Speed N is: n=u-ir/kφThe speed control method of DC motor can be divided into two types: the excitation control method of regulating excitation flux and the armature control method of regulating armature voltage. The excitation control method at low speed by th
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