Power Supply Design of Magnetic Resonance Sounding Equipment for Detecting Mine Groundwater

2013 ◽  
Vol 461 ◽  
pp. 519-523
Author(s):  
Chen Sun ◽  
Jun Lin

On the basis of the principles and characteristics of the various switching power supply, we have designed a high-power supply which can be used for the magnetic resonance sounding equipment for detecting mine ground water. The characteristics of the switching power supply are the full-bridge converter as the main power topology and the SG3525 chip as the core of the control. The high frequency PWM signal generated by the SG3525 can drive the four power switch tubes of the full-bridge circuit to conduct alternately thought the IR2110, so we can get continuous and stable DC output voltage. The design of the switching power supply has a lot of advantages, such as high efficiency, low noise, high stability, and small volume weight.

2013 ◽  
Vol 834-836 ◽  
pp. 1221-1224
Author(s):  
Hong Zhuan Cai ◽  
Li Bai

Switching power supply is an important field of application of power electronic technology, the high frequency switching DC power supply with high efficiency, small size, light weight and other advantages obtain the widespread application. The application of synchronous rectifier technology, photoelectric coupling isolation technology and the active clamp forward converter design high frequency switching power supply with 16~40V DC input and 5V/100W DC output . its operational principle is analyzed, and using LM5026 control chip describes design method of switching power supply.


2013 ◽  
Vol 341-342 ◽  
pp. 1266-1270
Author(s):  
Gang Wu ◽  
Yu Tang

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.


2014 ◽  
Vol 986-987 ◽  
pp. 1799-1803
Author(s):  
Yu Tang ◽  
Gang Wu

Half bridge switching power supply 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 half bridge switching power supply, the key and difficult point is the design of switch transformer. Taking the switch transformer of a half bridge switching power supply as the research object and based on the design requirements, this paper aims to realize the calculation of the coil turns and the selection of core in switching transformer. the design of switch transformer of the push-pull switch power supply has been completed by circuit simulation and implementation.


1978 ◽  
Vol CE-24 (3) ◽  
pp. 473-480
Author(s):  
Toshio Fujimura ◽  
Takeshi Maruyama ◽  
Kunio Umehara

2012 ◽  
Vol 249-250 ◽  
pp. 567-571
Author(s):  
Bing Jun Yan ◽  
Ai Dong Xu ◽  
Zhan Yuan Bai

The background of this paper is the power supply driven by High-voltage Static Synchronous Compensator series module, a kind of applicable to high voltage power module is proposed in this paper. Using High-voltage Static Synchronous Compensator, this device Switching Power Supply has the advantages of small in volume, light in weight, high efficiency and reliability. Compared with the high voltage of the insulation frequency transformer, this device overcoming many shortcomings, such as huge in volume and high price. This device is more suitable for distributed application, therefore it is very easy to realize multiple outputs of the power.


2014 ◽  
Vol 1030-1032 ◽  
pp. 1384-1387
Author(s):  
Hao Wang ◽  
Dian Ren Chen

The switching power supply is the use of modern power electronics, by controlling the switching transistor turn-on and turn-off time ratio, maintaining a stable output voltage of the power supply. Switching power supply technology at the core, it is mainly divided into AC / DC and DC / DC two categories. Switching power supply eliminates bulky frequency transformers, replacing tens of kHz, MHz or even hundreds of kHz frequency transformer. Since the adjustment pipe work in the off state, and thus low power consumption and high efficiency.


2021 ◽  
Vol 1748 ◽  
pp. 052042
Author(s):  
Zhao Jing ◽  
Wang Xiao Shuang ◽  
Rao Xue Jun ◽  
Zhang Lu Ya

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