Hello.
I'm using the 555 as a VCO by using the 'control' input. The circuit to the left is a RC circuit. When switch J2 is closed, the capacitor slowly charges to 5V, and the frequency from the 555 should be 0Hz. The circuit works as I want it to in the simulation software, but when I build it, it seems the capacitor is discharging through the 555 control input and it never reaches 5V. What is a simple way to get around this? Thankyou.
I'm using the 555 as a VCO by using the 'control' input. The circuit to the left is a RC circuit. When switch J2 is closed, the capacitor slowly charges to 5V, and the frequency from the 555 should be 0Hz. The circuit works as I want it to in the simulation software, but when I build it, it seems the capacitor is discharging through the 555 control input and it never reaches 5V. What is a simple way to get around this? Thankyou.
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