Hello.
I have designed an inverter circuit (500W) with SG3524. A shut down facility is given at the 10th pin of that IC. I want a circuit to monitor the load current and should send a pulse to the 10th pin when the load current violates the limit.
Now, i dont want to use a dedicated current transformer. See the schematic. I have a small 230/12V, 500mA transformer. I will use the 12v winding as primary (will be in series with the load) and the 230v section as the result of current sense. What will be the value of 'R' if the maximum load current is 2 Ampere.
and any precautions needed?
please dont tell me to use a ring type current transformer. Here i want to know whether a noraml transformer can be used like CT or not.
I have designed an inverter circuit (500W) with SG3524. A shut down facility is given at the 10th pin of that IC. I want a circuit to monitor the load current and should send a pulse to the 10th pin when the load current violates the limit.
Now, i dont want to use a dedicated current transformer. See the schematic. I have a small 230/12V, 500mA transformer. I will use the 12v winding as primary (will be in series with the load) and the 230v section as the result of current sense. What will be the value of 'R' if the maximum load current is 2 Ampere.
and any precautions needed?
please dont tell me to use a ring type current transformer. Here i want to know whether a noraml transformer can be used like CT or not.
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