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Hello guys,
One of our customers wants to use NE555 as VCO(Voltage-controlled oscillator).
Could you please give me any schematic if you have?
Your reply would be much appreciated.
Best regards,
Kazuya Nakai.
Kazuya,
This circuit should work from 0 to 3 kHz as pin 5 goes from 5V down to 0.5V (VCC = 5V)
I simulated this with similar TLC555 model which doesn't output correctly for pin 5 near 5V. However, in real device I don't believe that will be the case for NE555 (or even TLC555). I might be able to test this circuit next week.