# How is sinusoidal current generated?

• Kenny Bala
Alternating currents are generated by rotating a magnet around an axis that is at an angle to the direction of the current flow.f

#### Kenny Bala

I'm delving into AC as well as attempting to understand the various wave forms used in electrical engineering, and I am curious how engineers are able to generate current which alternates in a sinusoidal manner. What specific phenomena allows us to achieve this? Is it a special circuit, or does it have to do purely with the electromagnetics of a current generator?

Thanks!

Circular function relative motion between magnetic flux and conductor.

Circular function relative motion between magnetic flux and conductor.

is the usual mechanical way ( power generating station, alternator in a car)

it can also be done purely electronically
say a Wien Bridge oscillator

Dave

HIgh current inverters are problematic. In my industry we used zero to adjustable low frequency stepping resistors to roughly simulate 3-phase 'alternating' current.

I'm delving into AC as well as attempting to understand the various wave forms used in electrical engineering, and I am curious how engineers are able to generate current which alternates in a sinusoidal manner. What specific phenomena allows us to achieve this? Is it a special circuit, or does it have to do purely with the electromagnetics of a current generator?

Thanks!

You can also use a Waveform Generator IC to make sine, triangle and square waves (as well as other waveforms). That is how basic signal generator equipment works: