power supply design book

-6-3-2. Calculation of parameters of the transformer of the excited switch power supplyThe parameters of the transformer of the excited switch power supply are mainly calculated from these aspects. One is the turns of the primary coils of the transformer and the volt second capacity. The larger the volt second capacity, the smaller the excitation current of the t

their high redundancy and flexible control. A Distributed Power Supply Design Scheme for modern communication networks based on microgrid technology is proposed. 1. Power Supply Mode of the Communication Network Communication network for the

Chassis power supply as a source of computer energy, its importance is more and more people pay attention to, but, the importance of power supply fan is still neglected by most consumers. As a result, a sudden increase in the noise of the power

shock, which brings great inconvenience to the users in the process of use. In order to protect the switching power supply itself and the load, according to the principle and characteristics of DC switching power supply, the design of overheat protection, overcurrent protec

Power Supply Design of Radar Video Signal Simulator Based on TPS54310 [Date: 2008-10-13] Source: foreign electronic components by Liu Donghai, Ren Yongfeng, Li shengkun [Font:Large Medium Small] 　 1 IntroductionThe radar video signal simulator is an important device for debugging the radar signal processor. It has the analog environment and t

The power distribution system should meet the requirements of the Information Equipment Room, ensure the reliability and flexibility of power supply, ensure personal safety, facilitate construction, maintenance and management, and achieve advanced technology, economic and reasonable. The lighting system complies with relevant national regulations. More integrated

working cycles, the initial values of the voltage or current of a circuit are basically equal or very close, we can think that the switching power supply has entered a stable working state.When the switching power supply enters the stable state, for simplicity, we generally use the average or half-wave average of volt

Nowadays, switching power supply has replaced linear regulated power supply and is active in the electronic power design field. People gradually realized that the switch power

Internet cafes currently provide services, such as Web browsing, network games, online movies, distance education and other basic services are related to the network, the quality of the network directly determines the viability of Internet cafes. Therefore, how to plan a high-quality network environment, is an Internet café operators must consider a key point, the integrated wiring of Internet cafes accounted for a large number of factors, mainly two major parts:

capacitor is usually large.By the way, it is pointed out that the charge and discharge time constants of the filter capacitors of the switching power supply are usually large, dozens of times the Switching Power Supply frequency period, or even hundreds of times. Therefore, the energy storage filter capacitor can be c

small, high efficiency, small size, light weight, wide voltage regulation range, but its circuit structure is more complex, high failure rate. It works by increasing the internal chip through the switching tube (its frequency and timing capacitance), energy storage inductance and capacitance for a short period of time charge and discharge to the load to provide power (inductor can choose a large point) to output continuous DC voltage, another uo=1.25

product must be properly applied. Therefore, the following circuit is the correct method in the design: Figure 1 a210 Power Supply Diagram The external voltage 5 V is sent to switch sw2 through D2, and the charging management IC mcp73831 is sent to the lithium battery. The left-side voltage of sw2 is 5 V-0.7 V = 4.3 v. The voltage of the lithium battery is less

is: dp=1.13*√0.121=0.3933mm 14. Wire diameter selection for secondary windings Sp=irms/j=3/6=0.5/〖mm〗^2ds=1.13*√0.5=0.79mm 15. The air gap size of the core lg= (0.4π*〖np〗^2*ae)/LPCalculation of the available air gap size is 1.291mm 16. Transformer Winding Take a sandwich around half of the primary winding at 3 feet and 2 feet, which is 20 laps. Then on the 5, 6 feet around the auxiliary winding VCC, around 7 laps. Then on the 10, 8 feet around the secondary winding 5 laps. Finally on the 2 feet

most of the current power supply fan design for the blow or side blowing mode, if it is on the blow, the fan is fixed in the power supply cover, when the demolition, it is important to note that the fan also has a power cord conn

humans enter the information society, how to protect computers, networks, and data is a matter of great concern. The design, monitoring, and improvement of power quality is not only a matter of quality, but a matter of security. The normal operation of the uninterrupted power supply society is a new topic. Generally,

Tips for installing power management software:Tips for installing the Lenovo Settings software:Affected model: ThinkPadAffected systems: all pre-installed systems with flight modes, such as Windows 7, Windows 8, Windows 8.1, and Windows 10Cause analysis:This is a normal situation. The flight power mode in Lenovo Settings and power management software is automatic

); 13. Optional timing switch function: Optional timing switch function (optional ); 14. Time-based output of square waves: time-based cyclic output of custom square waves (optional ); 15. optional external control: Optional temperature or other custom signals are used to control and adjust power supply product disconnections (optional ); Advanced Technology 1. improved electronic circuits optimize anti-in

instability, causing the problem of power integrity, so one of our design purposes is to minimize the above two types of voltage, there are two ways: Minimizing the rate of change in the loop current: This means reducing the mutation speed of the load-absorbing current, limiting the number of power ports that share the

important role, not only to fully dissipate heat, but also to mute cooling. The high quality power supply fan uses the flame-retardant material, the heat sink is big and thick, the inferior power supply fan uses for the non flame retardant material, the heat sink thin and small. Xin Valley's speed core 535PE overclock

capability--look at the power supply standard We know that Intel has a series of design recommendations and reference specifications for computer power supplies, which is the ATX12V standard, which defines the physical dimensions of power supplies, thermal requirements, co