Hi everyone
Iam working over a project in which i want to display the supply frequency on a 7 segment display. Somebody suggested to use LM2907(f-v converter) and ICL7107(a-d converter cum 7 segment display driver).
My problems are:
1. How can i interface the f-v converter to the mains 230v, 50HZ supply.
2. Suppose if i get the output of f-v converter as 5v for 50Hz frequency,
how can i calibrate the ICL7107 to display 50Hz?
Can anybody help me with a schematic to calibrateICL7107 and to interface LM2907.
I had a circuit got in the net. I'm not getting how to modify the circuit to display 50Hz. Here iam attaching it.
thanQ
Iam working over a project in which i want to display the supply frequency on a 7 segment display. Somebody suggested to use LM2907(f-v converter) and ICL7107(a-d converter cum 7 segment display driver).
My problems are:
1. How can i interface the f-v converter to the mains 230v, 50HZ supply.
2. Suppose if i get the output of f-v converter as 5v for 50Hz frequency,
how can i calibrate the ICL7107 to display 50Hz?
Can anybody help me with a schematic to calibrateICL7107 and to interface LM2907.
I had a circuit got in the net. I'm not getting how to modify the circuit to display 50Hz. Here iam attaching it.
thanQ
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