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need help for dc motor speed

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bilalxp

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can any 1 plss help me tht which triac should i use if i m controlling 12v dc motor intead of 220v bulb.
rmember i m using bt-136 for bulb as a 220v dc bt bt136 is not working for 12v dc motor.
kindly i m new help me plsss.

here is the crkt dgrm working with 220v bulb bt not for 12v(12v from step down transformer) dc motor

91_1255626881.gif


Added after 1 minutes:

bt-136 in place of scr in the above dgrm
 

nandhu015

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Better use mosfet, it is simple

Nandhu
 

bilalxp

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actually i ve to use triac in my circuit it is the task for me
can any 1 plss give me the schematics for 12 v dc motor control using triac ??

it wud b gud if AT89c51 ll also b used otherwise triac is necassary.
plss give me the crkt dgrm as i m new :cry::cry:
 

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