DC to AC converter

258

03:07:19

Is it an DC to AC converter? I mean I didn't used an AC source and at the lamps is AC voltage right?

published 9 years ago

BillyT

9 years ago

It is commonly known as a relaxation oscillator, it was used by some early car radios to covert the vehicles battery voltage to a level high enough to power the valves. If you lay out the circuit in a bit more organized fashion, it is a bit easier to understand. Using your circuit as you have designed it you can cut out a bit and the circuit still operates ok.

BillyT

9 years ago

Here is a tidied up version of your circuit, it is a lot easier to understand, I wouldn't really call it a dc to ac converter, in its original form it was used as a dc multiplier http://everycircuit.com/circuit/5290087885045760

Smates133

9 years ago

But in your circuit is the voltage high for example 4 volts and low is 0 volts.... And in my version is the lamp everz time on and the LED not... so i think the "polarity has changed" ... What i mean is: somtime are the lamp AND the LED on and somtime only the Lamp because the current has the false polarity

BillyT

9 years ago

When the switches are closed the circuits are the same and perform the same, the light bulb can be seen to blink in both circuits if you look closely, particularly if you speed up the time base. The lamp only appears to be on all the time because the simulator accurately simulates the lamps filament action where it does not turn off immediately, but actually goes through a cool down stage.

nst_ayub

9 years ago

nice

Benb0456

9 years ago

The lamp can use AC or DC

Smates133

9 years ago

Yea and the LED not @BillyT :)

Benb0456

9 years ago

Update to my other comment: this is not real AC. AC is always moving forward when it changes and it doesn't change instantly.

Smates133

9 years ago

@Benb0456 AC mean that the voltage is for example 3V and then goes to -3V. It doesnt matter if it is instantly or not.

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