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TCA 785 - help me with Phase control IC

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ramanh

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TCA 785

Hi there is it possible that someone can help me with the above Phase control IC.I'm encountering some problems with the Application example - Triac Control for up to 50mA Gate Trigger Current.I've reduce the AC voltage to 26V AC too suit my circuitry,which drives a 24V 150W halogen lamp.With this I changed some resistors for eg Rsync is 27K and the input resistor is 390 ohm and also changed the TXC10M60 with a common used TIC225M triac.

No luck with the circuit.Help please
 

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