SMPS supply +15v, -15v, 5v

View previous topic View next topic Go down

SMPS supply +15v, -15v, 5v

Post by alvinquimbo on Wed Jun 03, 2015 8:02 pm

Mga sis at sir patulong nito...nagkatrouble kasi itong SMPS board ng Metal detector...Sira ang Kanyang Switching Regulator na 7M0880..Kaso walang available na piyesa dito sa davao sa kahit saan store...may alam ba kayong pwede ipang replace nito???or pwede modi nalang or diagram nalang na may out na 15v, -15v at 5v..diko lang alam sa current specs nito..kasi nagtry ako ng dvd supply na 12v, -12v at 5v ay gumana naman pero fluctuating sya parang kapos...any idea mga sis is highly appreciated...salamat na marami.. going to cry going to cry going to cry

alvinquimbo
D Battery
D Battery

Posts : 723
Join date : 2014-03-29
Age : 28
Location : Davao City

Back to top Go down

Re: SMPS supply +15v, -15v, 5v

Post by Hertz on Thu Jun 04, 2015 10:26 pm

good replacement ang KA1M0880 o 1M0880 dyan., may available nyan sa newport. maitanong ko lang, Saang application mo yan gagamitin? baka mataas ang current requirement ng load niya kaya ka kapos. puede mo subukan ang mga atx supply.modify mo lang ang feedback circuit. try check this link para makuha mo ang topology niya 

_________________
3rd member of STTM
former 4th member

Hertz
Admin
Admin

Posts : 1457
Join date : 2010-08-12
Age : 36
Location : Cagayan De Oro City

Back to top Go down

Re: SMPS supply +15v, -15v, 5v

Post by alvinquimbo on Fri Jun 05, 2015 9:04 pm

Sir Hertz salamat nito ha...Ganito ang nangyari sir...Nasira kasi ang Metal detector na ginagamit dito sa planta..Laging pumuputok yung fuse ng main board ng metal detector..Napatawag kasi yung supervisor sa akin at pinatrouble sa akin..Nakita ko na may smps board ito na may out na +15v, -15v, 5v..Kaya isolation ang ginawa ko..inuna ko si smps board, biruin nyo sir pumutok yung fuse nya na 8A... kaya naggamit ako ng light bulb trick at yun ang lakas ng liwanag nya na indication na may heavy load sya..Tapos yung Main board naman ay napalitan ko ng 3A na fuse at sinubukan ko i-power - up at ok naman sya, so ang salarin ay si SMPS board..Ito yung model ng metal detector nya sir NMD-510, tapos serial nya ay 203341..Mukhang mataas talaga ang requirement ng current nya sir..ok lang ba sir na 12v,-12v at 5v basta mataas lang ang current require nya sir?Tapos sir paano ko imomodify ang feedback circuit nya sir??

alvinquimbo
D Battery
D Battery

Posts : 723
Join date : 2014-03-29
Age : 28
Location : Davao City

Back to top Go down

Re: SMPS supply +15v, -15v, 5v

Post by james on Sun Jun 07, 2015 8:15 pm

Parang strg5653 pero kung mas malaki ang tab eh mukhang di uubra.

Or check mo rin ang strw-6753. Parang ganyan ang operating parameter ng mga yan.

james
D Battery
D Battery

Posts : 1080
Join date : 2011-11-14

Back to top Go down

Re: SMPS supply +15v, -15v, 5v

Post by Sponsored content Today at 9:55 pm


Sponsored content


Back to top Go down

View previous topic View next topic Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum