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Which component we can use to switch on/off an AC power source of 12V ?

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dear friends

which component we can use to switch on/off an AC power source of 12V
as we are using triacs for high voltage? can we use optocouplers?
using at89c2051



regards

ml
 

Re: Ac power on

For 12Vac you can also use a triac ..
For example, the Q2008L4 should work well if you only can "pump" more than 25mA into its gate ..
https://www.datasheetarchive.com/Q2008L4-datasheet.html
It can be driven by an optocopler such as MOC and the gate resistor should be about 20Ω ..

Here are examples:
**broken link removed**

Regards,
IanP
 

Ac power on

AC Power source of 12 Volts, relays are enough, optocouplers can do also.
 

Ac power on

use optcoupler, and AC-AC module
 

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