switching circuit using gate instead of relay

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shrikanthkp

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Can i use or gate for switching instead of relay?Here 1 Input (high or low signal)given from microcontroller 2nd input kept dummy.If microcontroller output high or gate output also high then can i use this voltage to drive another circuit(5volt ) insted of using relay?.Beccause relay consumes more power from battery.So we can avoide fast discharging of battery?.Please help me.
Thanking you,
Regards
Shrikanth KP
 

if both the ckts are working @ low power levels then it can be possible.(depending on design)

think of optocouplers /optoisolaters also.

post ur system to get more help from forum.
 

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