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The FA5310 switching power supply controls IC and the application
Sunday, May 3rd, 2009 at 23:07 | No commentsCategories: Power SupplyShort Content: The abstract introduced the FA5310 switching power supply controls IC the performance, the characteristic and the principle of work, and gave its one kind to apply the electric circuit specifically. -
Handset overall power source managerial technique and solution discussion
Tuesday, April 21st, 2009 at 21:59 | No commentsCategories: Power SupplyShort Content: Are getting more and more along with handset's function, the user is also getting higher and higher to the handset battery's energy requirements, the existing lithium ion battery already more and more with difficulty satisfied the consumer to the normal period of revolution request. Regarding this, the field mainly adopts two methods; first, the development has the higher energy density new battery technology, like fuel cell; Second, works hard in battery's energy conversion efficiency and the energy conservation aspect. ... -
38kHz/375W switching power supply transformer’s design
Sunday, April 19th, 2009 at 20:00 | No commentsCategories: Power SupplyTags: Converter, Switching power supplyShort Content: Abstract: Introduced in detail has intermediate tap's high frequency high efficiency transformer's design process and the computational method, as well as must pay attention question. The transformer which designs according to the switching power supply converter's performance index passes through in the actual electric circuit's test and the confirmation, the efficiency is high, the disturbance was small, has displayed the fine electrical specification.Key word: Switching power supply transformer; Magnetic core's choice; Magnetic induction intensity; Skin effect; Intermediate tap 0 introductions ... -
The switching power supply input flat wave electric circuit’s design with realizes - en.51rd.net
Saturday, April 18th, 2009 at 08:59 | No commentsCategories: Power SupplyShort Content: Abstract: Introduced based on two port network switching power supply input flat wave circuit design general principle and the method. This method through to the flat wave electric circuit input admittance and output impedance's design, can guarantee the flat wave electric circuit while has good flat wave effect to the high frequency component, reduces as far as possible to the low frequency component weaken, moreover does not affect power source's elevating capacity while flat wave. Based on this principle design's ... -
Based on DC/DC soft switch technology battery charger’s in railroad secondary power system application
Wednesday, April 15th, 2009 at 15:59 | No commentsCategories: Power SupplyShort Content: Abstract: First introduced the soft switch and the hard switch's elementary knowledge, then gives the electric train accessory power supply newest 10kVA battery charger's main circuit design, introduced and analyzes this kind of new battery charger soft switch to realize the method and the design matters needing attention, this product through national Ministry of Railways's each experiment, moved in official clear Qinghai-Tibet Highway's each new train.Key word: Charge; Soft switch; Hard switch; Accessory power supply 0 introductions The modern electric ... -
Instead stirs up-like the switching power supply design based on TOPSwitch and the PI Expert single end
Sunday, April 12th, 2009 at 19:42 | No commentsCategories: Power SupplyShort Content: Abstract: TOPSwitch the monolithic switching power supply chip collection PWM controller and high-pressured MOSFET in a body, the performance are outstanding, the reliability is high. With it necessary PI the Expert software, the function is formidable, the use is simple, uses for to design the switching power supply to be possible to reduce the cost, the reduction cycle, raises the efficiency. Designed one kind of single end using TOPSwilch and PI Expert instead to stir up-like the multi-channel power take-off ... -
Switching power supply’s electromagnetic compatibility design
Friday, April 10th, 2009 at 02:09 | No commentsCategories: Power SupplyShort Content: Abstract: , The low power switching power supply's monolithic integration is one of switching power supply's trends of development. Electric circuit's high integration is helpful in develops the high efficiency, the high density, the redundant reliability, the volume small, the weight light high quality power source. But, electromagnetic interference question complexity and latent hazardous nature actually along with it aggravating. Therefore, the electromagnetic interference question's deep research to enhances designs the product the reliability to have the big practical significance. ... -
SG6849 in the single end instead stirs up-like in switching power supply’s application
Thursday, April 9th, 2009 at 16:09 | No commentsCategories: Power SupplyShort Content: Abstract: The SG6849 chip is the switching power supply specific IC which SG (System General) the company produces, uses this chip design low power switching power supply, may reduce the peripheral circuit greatly, reduces the cost, the electric circuit reliability is high, and may not bring vice-side to feed back. Introduced in detail the SG6849 chip's principle of work, and designed a 5.6W single end based on this chip instead to stir up-like the switching power supply, has given the ... -
Based on PQ35 switching power supply design and manufacture
Wednesday, April 8th, 2009 at 10:09 | No commentsCategories: Power SupplyShort Content: 1. introduction The switching power supply comes out from the 1950s is small until now by the volume, the efficiency high and widely applied in the computer, the signal equipment and so on nearly all electronic installation. Its great variety, various, the trend of development also toward the small volume, the high efficiency, low cost's direction develops. Here introduced 3 00 W switching power supply belongs to the isolation hard switch, the semi-bridge system switching power supply, in compares under ... -
Uses the fixed breakover timer to optimize switching power supply underloading energy efficiency - 51RD the Chinese electronic net
Tuesday, April 7th, 2009 at 19:08 | No commentsCategories: Power SupplyShort Content: Because has the high efficiency and the high power density, switching power supply's is getting more and more popular in modern electron system use. Specially along with the control chip's application, switching power supply's circuit design obtained the enormous simplification, often only needs in the pulse-duration modulation (PWM) control chip foundation to add some periphery component then to compose the switching power supply again, this even more promoted switching power supply's design and the development. Looking from the type, the ...
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