Research on the Control of Switch Power Supply Based on the Digital Potentiometers

2010 ◽  
Author(s):  
Fu Yuan ◽  
Wang Lifang ◽  
Liu Jun
Keyword(s):  
Power Supply ◽  
Switch Power Supply ◽  
Switch Power

Design of Switch Transformer about the Push-Pull Switch Power Supply

2013 ◽  
Vol 341-342 ◽  
pp. 1266-1270
Author(s):  
Gang Wu ◽  
Yu Tang
Keyword(s):  
Power Supply ◽  
High Efficiency ◽  
Skin Effect ◽  
Circuit Simulation ◽  
Switching Power Supply ◽  
Switching Power ◽  
The Family ◽  
Switch Power Supply ◽  
Design Requirements ◽  
Switch Power

the push-pull switch power is a kind of form in the family. It has the characteristics of good voltage output, high efficiency, the simple circuit and so on. On the design of the push-pull switch power supply, the key and difficult point is the design of switch transformer. Taking the switch transformer of a push-pull switching power supply as the research object and based on the design requirements, this paper aims to realize the calculation of the coil turns in switching transformer. Meanwhile, under the consideration of the skin effect and the proximity effect and the choices of switch transformers wires and the methods of wires winding, the design of switch transformer of the push-pull switch power supply has been completed by circuit simulation and implementation.

A Study on the Thermal Management of the Electronic Parts and Systems

2004 ◽  
Author(s):  
Jyh-Tong Teng ◽  
Shih-Cheng Tsang ◽  
Jiunn-Shyang Chen ◽  
Tien-Juinn Fung
Keyword(s):  
Thermal Management ◽  
Power Supply ◽  
High Energy ◽  
Electronic Components ◽  
Desktop Computer ◽  
Notebook Computer ◽  
Parametric Studies ◽  
Switch Power Supply ◽  
Switch Power ◽  
Electronic Parts

The rapid developments of computer industry and semiconductor processes lead to high component density, high-energy dissipation, and compact volume of the electronic components in systems. Those are especially true for the high-energy density of the CPUs, resulting in high temperature rise for the electronic chips. To preserve the life span of the integrated circuits and to ensure their proper functions, it is necessary to develop proper means for evaluating the related thermal management in order to effectively dissipate the energy released from these electronic parts and systems. This project used Icepak 4.0, developed by Fluent, to determine thermal-fluidic behaviors of the notebook computer, desktop computer, and switch power supply, under an environmental temperature of 35°C. In addition, parametric studies were carried out to evaluate the distribution of temperature inside the systems under investigation and the effectiveness of overall thermal management for the systems. Icepak uses the unstructured grid generation technique for the three-dimensional modeling of the electronic components and systems. With the computational fluid dynamics (CFD) solver employed by Fluent and using the finite volume method, Icepak simulates the flow and temperature fields inside the system or component of concern. Parametric studies — including the positions for venting, the locations for the cooling fans, the directions of flow for the fans (either by blowing or suction), and the number of fins used for heat dissipation — were carried out to determine the effectiveness of the thermal management designs of the desktop computer, notebook computer, and switch power supply under an environment temperature of 35 °C. Results of this study indicated that the peak component temperatures for the three systems under study are 84 °C, 80 °C, and 81 °C, respectively, while the maximum allowable temperatures suggested by the manufacturers of these three items are 85 °C, 90 °C, and 85 °C, respectively.

The Design of 25KV High-Frequency High-Voltage Power Supply

2014 ◽  
Vol 912-914 ◽  
pp. 927-930
Author(s):  
Qiang Jiang
Keyword(s):  
Power Supply ◽  
High Frequency ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
High Voltage Power Supply ◽  
Switch Power Supply ◽  
Switch Power ◽  
Inverter Topology

In this paper, a HV and HF switch power supply was designed, which was controlled through a single chip microcomputer, also the MOSFET was used as the switch power tube. The PWM (pulse width modulation) technique and half-bridge inverter topology have been used to invert AC into the DC that can be adjust from 0V~25KV and the operating frequency is 35KHz, Through the simulation with the Saber software and practical use, the feasibility of the scheme and the correctness of the design have been verified.

scholarly journals A Novel Parallel Current-sharing Control Method of Switch Power Supply

2014 ◽  
Vol 8 (1) ◽  
pp. 170-177 ◽  
Author(s):  
Chao Wu ◽  
Bingjuan Lu ◽  
Yuwang Ge
Keyword(s):  
Power Supply ◽  
Control Method ◽  
Current Sharing ◽  
Power Modules ◽  
Parallel Current Sharing ◽  
Switch Power Supply ◽  
Current Sharing Control ◽  
Switch Power ◽  
Parallel Current ◽  
Current Selection

A novel parallel current-sharing control method of switch power supply is proposed, on the basis of a detailed analysis of several common parallel current-sharing control methods and recent related patents. Only the current of switch power modules with maximum and minimum output current will be regulated, which is selected by the extreme current selection circuit in this method. Four cases with different extremum situation are discussed, and in each case, principles and equations are given. Finally the current-sharing control of switch power supply parallel system is realized. Experimental results show that the current-sharing method is reasonable and effective.

Design of Quick Electrooptic Qswitch Power Supply

Applied laser ◽  
2010 ◽  
Vol 30 (6) ◽  
pp. 515-517 ◽  
Author(s):  
秦工 Qin Gong ◽  
涂昌培 Tu Changpei
Keyword(s):  
Power Supply ◽  
Electro Optic ◽  
Switch Power Supply ◽  
Switch Power
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