1. I have attached a circuit in which triac is driven using MOC3021. Load is connected as shown in ckt attched . It is pure resistive load of 350mA.
2. Ac voltage is 220Vac,50Hz, +5V to MCU is driven by using capacitive supply.
3. Attached fine picture of zero cross & signal to MOC3021. There is some logic by which I have to drive triac on after 1ms of zero cross pulse detect. Triac pulse is of 85us .
4. Problem is there is no load current flow, even I turn on moc3021 after zero cross detect. What is the problem?
I have checked the circuit connection multiple times all are ok.
Mod edit: removed and archived schematic with tranformerless power supply
2. Ac voltage is 220Vac,50Hz, +5V to MCU is driven by using capacitive supply.
3. Attached fine picture of zero cross & signal to MOC3021. There is some logic by which I have to drive triac on after 1ms of zero cross pulse detect. Triac pulse is of 85us .
4. Problem is there is no load current flow, even I turn on moc3021 after zero cross detect. What is the problem?
I have checked the circuit connection multiple times all are ok.
Mod edit: removed and archived schematic with tranformerless power supply
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