Hi,
I want to ON my heater load only for 4 to 5 sec and switch off even if i forget to switch off physically.
I want to triac-switch-off my AC load (aprox 4 amps 230v) after its been physically switched ON. It has to remain switched off till the main switch gets OFF and ON again.
I'm new to electronics (better in software) and can use ATTiny & Triac for this purpose. But, I want to achieve simple, no-firmware, bare minimum & very cheap circuit.
please help me to have the circuit with bare minimum components.
I somehow collected transformer less 5v power and Triac circuits. But, I cannot think of 5sec delay and combining all of these due to my little electronics knowledge.
Someone can even design without this transformer less 5v parts [But, I'm not that good :-( ]
I played with Delay circuit as in image but it did not help. caps needs to be discharged to switch on next time.
can anyone help on this ?
thanks in advance.
venki
I want to ON my heater load only for 4 to 5 sec and switch off even if i forget to switch off physically.
I want to triac-switch-off my AC load (aprox 4 amps 230v) after its been physically switched ON. It has to remain switched off till the main switch gets OFF and ON again.
I'm new to electronics (better in software) and can use ATTiny & Triac for this purpose. But, I want to achieve simple, no-firmware, bare minimum & very cheap circuit.
please help me to have the circuit with bare minimum components.
I somehow collected transformer less 5v power and Triac circuits. But, I cannot think of 5sec delay and combining all of these due to my little electronics knowledge.
Someone can even design without this transformer less 5v parts [But, I'm not that good :-( ]
I played with Delay circuit as in image but it did not help. caps needs to be discharged to switch on next time.
can anyone help on this ?
thanks in advance.
venki
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