Nice demo. The op-amp output can source or sink current, so when you flip the switch all you're doing is changing where the ground is. Not an actual dual power supply, but a good way to simulate it with an op-amp.
I may have run across another way to get an a/c signal from a 555 timer through a mosfet IRF530N powered off the rail @ 5V. I'm pretty sure anyway (being "green" and all :-)
There's a number of ways to get current flowing both directions in a circuit. Capacitors have current going one way when they charge, and the other way while they discharge.
Love it.
Glad to hear, thanks for watching!
Nice demo. The op-amp output can source or sink current, so when you flip the switch all you're doing is changing where the ground is. Not an actual dual power supply, but a good way to simulate it with an op-amp.
I may have run across another way to get an a/c signal from a 555 timer through a mosfet IRF530N powered off the rail @ 5V. I'm pretty sure anyway (being "green" and all :-)
There's a number of ways to get current flowing both directions in a circuit. Capacitors have current going one way when they charge, and the other way while they discharge.