Matching to the impedance of an alternator.

Obfuscation after obfuscation... you should go into politics... Democrat of course ;-) ...Jim Thompson

No content, as usual.

You don't understand this stuff.

John

Better than you understand bicycle hub dynamos ;-) ...Jim Thompson

I've made a number of technical statements and about the way such an alternator will behave. I've suggested two practical ways to solve the specific problem at hand.

All you have done is cluck like the old hen you are. If I've said anything that's wrong, say what and why. Your "behavioral switcher" post is pitiful.

If you ever understood any electromagnetics, you've obviously forgotten it all.

John

I didn't say you will; I said you might. And it's true. Things that run at 4 or 10 times their design dissipation might have problems.

John

load

getting

suspect

would

series

pull

load

here -

current

the

or

the

pair

allowed

down

(experiment

Output

is a

subliminally

posted

pay

got 6V

rectification

can

can

What did you realize?

Why do you never say anything on-topic?

John

(Normally

loads to

of using

specified voltage.

few

etc.

Look at the stuff Marcel posted.

It's German, but the numbers and the graphs are clear enough.

John

I really should be ignoring you, but why do say it is pitiful? Can't understand it?

It works so well that it allowed me to see what would happen when you add a buck switcher to a hub dynamo... it'll work BUT with some necessary tweaks... lots of gotchas hiding in there.

Watch this space tomorrow ;-)

Probably forgotten some, it's been 50+ years since I studied an AC motor. That's so old school. But I've designed 3-phase EC motor drivers in recent years that were commercial successes... basic equipment in every Mercedes.

But I find returning to fundamentals always serves me well... and I question everything, particularly anything emanating from your deranged mind. ...Jim Thompson

if

load

getting

suspect

would

series

pull

load

here -

current

for the

or

the

pair

allowed

down

(experiment

Output

is a

subliminally

posted

pay

as a

got 6V

rectification

downstream

can

can

Because the more I can keep you agitated the more Schadenfreude I can derive from your misery :-) ...Jim Thompson

OK, so in the immortal words of Emily Latella, "Never mind..."

No, there are at least two of us out here. Perhaps now would be a good time to refresh us all on exactly what you want to accomplish.

It doesn't say anything about the issue at hand. It's a generic cartoon of a buck switcher.

Some technical content at last? Can't wait.

Yeah, nobody uses AC motors any more.

But I've designed 3-phase EC motor

You haven't questioned anything I've said. You only cluck about my saying it.

John

if

switcher load

getting

suspect

it would

series

pull

as load

here -

current

for the

or

the

pair

you

allowed

down

(experiment

Output

is a

subliminally

posted

pay

as a

got 6V

rectification

downstream

can

can

No, it's because you don't understand this stuff.

You never miss an opportunity to make a fool of yourself in public. That's your true talent.

John

magnetic

not

for

Totally irrelevant to the case here. To begin with in the synchronous capacitor there are no short circuits involved. Second the currents are in the same range as those of a synchronous motor of that frame size and other similar ratings, in fact it may simply be a unloaded overexcited synchronous motor. You did read the article didn't you? You do remember that current and voltage are out of phase in capacitors or inductors connected across line voltage don't you? (No real power but plenty of VAR.)

Return to considering a normal generator / alternator / dynamo operating into a short circuit. Does a current flow? What is the phase between = the current and the voltage induced in the winding? Why?

Get one and try it. You will find out either way.

inductance,

application.

I am making some EL wire drivers that are battery powered, thus = efficiency matters. Plus i am switching various pieces of it on and off independently, thus variable load.

?-)

a=20

twice as=20

Logrithmic in either (and both) units.

?-)

Exactly. Repeat that last sentence a few times.

If the circuit impedance is largely reactive, the current will lag the induced voltage by about 90 degrees. So there's a lot of current but little power dissipated. If there was a lot of shaft torque, there would be a lot of mechanical power going in. But there's very little electrical power being dissipated by the reactive current circulating. Conservation of Energy says you can't have power going in when none is coming out.

John

The

follow.

Like hell, i am nearly as narcissistic as he is.

?-)