Welcome to Taizhou Rishun Electric Appliance Development Co., Ltd. ,Shanghai Rishun Electronic Equipments Co.,Ltd!

 

English              日文              中文

Taizhou Rishun Electric Appliance Development Co.,Ltd

Shanghai Rishun Electronic Equipments Co.,Ltd

Search

Straight line: 86-523-82096702
Switchboard: 86-021-58667709

Taizhou Rishun

Pacific Precision Fuse

Contact

Copyright:Taizhou Rishun Electric Appliance Development Co., Ltd.    Powered by www.300.cn   苏ICP备14021962号-1

News

>
>
Industry news
Dongguan has become a national advanced wire and cable manufacturing base
Dongguan wire and cable industry has experienced more than 30 years of reform and opening up, and has become an advanced wire and cable manufacturing base in Guangdong and even the whole country.
2019-07-29
China's wire and cable enterprises actively take e-commerce marketing
In recent years, China's Internet technology has developed rapidly, and e-commerce has also flourished, which has created new opportunities for the development of traditional Chinese enterprises.
2019-07-29
2013 Top Ten Wire and Cable Industry News Announced
On January 8, 2014, the results of the “2013 Top Ten Wire and Cable Industry News” produced by a number of media companies were officially released.
2019-07-29
Analysis: DC low voltage regulated power supply electronic circuit design schematic
DClow-voltageregulatedpowersupplyelectroniccircuitdesigniswidelyusedinpowermanagement,sotodayasimpleanalysisofthecircuitdiagramofthistypeofdesign,Ihopetohelpreadersinthedesignofsuchapplications.TheVD1-VD4,R1,C1,andC2oftheswitchingpowersupplypartconstitutearectifyingandfilteringcircuit.NE555andR2,R3,C4,VD6andothercomponentsformamulti-resonantcircuitwithafrequencyofabout20KHz.R4,C3,andVD5formastep-downregulatorcircuit,whichprovides12VworkingpowerforNE555.ThehighpowertubeVT1andthetransformerTconstituteaswitchingcircuit.TheworkingstateofVT1iscontrolledbythe3pinofNE555.Theon-timeisdeterminedbythepulsewidth.AdjustingR3canchangethepulsewidth.Thepulsewidthiswidened,theoutputvoltageisincreased,thepulsewidthisnarrowed,andtheoutputvoltageislowered.VT2andR8,R9,andC6formanovercurrentprotectioncircuit.Whentheloadistooheavyorashort-circuitfaultoccurs,VT2turnson,forcingtheNE555toresetandstopthevibration,thusprotectingVT1fromdamage.C7andR10areprotectionnetworkstopreventthec-ejunctionofVT1frombeingpulse-punched.Thetwosecondarywindingsarerectifiedandfilteredtooutput20Vand12Vrespectively.Inordertomaketheproductionsimple,theswitchingpowersupplyisdesignednottobeautomaticallyregulated.Itsfunctionissimilartothetransformer,butitrealizesthelight-weightisolationandbuckingeffect.Thevoltage-regulatingfunctionisrealizedbythefollowingvoltage-stabilizingcircuit.12VDCvoltageisregulatedby7805andoutput+5Vvoltage;20VDCvoltageissenttotheadjustablevoltageregulatorcircuit.
2019-07-29
Building energy saving “Save the Earth” hotel becomes the “leader”
Most of the hotel buildings are at the forefront of the trend, but can you imagine that the hotel building can “save the earth”? If there is a hotel that can be used for both land and sea; you can use environmentally friendly solar, wind and heat energy; you can assemble it in three to four months, please don't be surprised.
2019-07-29
Page Up
1

Taizhou Rishun Electric Development Co., Ltd.

Add:880# Jianggao Ave Taizhou, Jiangsu Province
Straight line: 86-523-82096702
Fax: 0523-82096200

 

Shanghai Rishun Electronic Equipment Co., Ltd.
Address: Room 1218, Kaixing Building, 35 Rijing Road, China (Shanghai) Free Trade Zone / 200131
Switchboard: 021-58667709
Fax: 021-58665779
Email: 
rs2@shrishun.com