Why are revlimiters uneven?

On 04/05/2021 17:38, Fredxx wrote:
On 04/05/2021 13:23, Brian Gaff (Sofa) wrote:

OK what do they use then, All I remember from my brief experience
trying to
dim leds was that the most successful way of doing that was by duty
cycle,
ie on to off times with them driven by some kind of oscillator with
variable
mark space ratios. However it is obvious that even the briefest of ons
and
the longest offs tends to still be visible in most cases, and not
terribly
accurate if many leds are usedÂ* as the load, there being a spread of
linearity in any given number.

PWM is the cheapest way as it needs no other component.

Yes, I made a PWM dimmer circuit (for fun) based on circuits I found on
the Internet and it works well, and dims to nothingness. (12VDC working
a white LED strip.)

--
Max Demian

On 04/05/2021 22:00, Max Demian wrote:
On 04/05/2021 17:38, Fredxx wrote:
On 04/05/2021 13:23, Brian Gaff (Sofa) wrote:

OK what do they use then, All I remember from my brief experience
trying to
dim leds was that the most successful way of doing that was by duty
cycle,
ie on to off times with them driven by some kind of oscillator with
variable
mark space ratios. However it is obvious that even the briefest of
ons and
the longest offs tends to still be visible in most cases, and not
terribly
accurate if many leds are usedÂ* as the load, there being a spread of
linearity in any given number.

PWM is the cheapest way as it needs no other component.

Yes, I made a PWM dimmer circuit (for fun) based on circuits I found on
the Internet and it works well, and dims to nothingness. (12VDC working
a white LED strip.)

do it at high enough frequency and there is no visible flicker, and you
can feed the LEDS via a small ferrite inductor with a parallel capacitor
and reduce HF flicker too.

--
The theory of Communism may be summed up in one sentence: Abolish all
private property.

Karl Marx

On Tue, 04 May 2021 03:01:29 +0100, rbowman wrote:

On 05/03/2021 10:13 AM, Commander Kinsey wrote:
Is it to warn you? Even my toilet cistern can slow down smoothly.

On cars? Yes. Cutting the engine abruptly when you hit the red line
wouldn't be good so they simulate ignition breakup to give you a hint.

But at that point you've already gone over the peak of the power curve. I'd just make it drop the curve more quickly so it can never go too fast. The driver would still feel the lack of power.

--
Sent from my iPhone, this spam courtesy of Apple incorporated.

"Commander Kinsey" wrote in message
news
On Tue, 04 May 2021 03:01:29 +0100, rbowman wrote:

On 05/03/2021 10:13 AM, Commander Kinsey wrote:
Is it to warn you? Even my toilet cistern can slow down smoothly.

On cars? Yes. Cutting the engine abruptly when you hit the red line
wouldn't be good so they simulate ignition breakup to give you a hint.

But at that point you've already gone over the peak of the power curve.
I'd just make it drop the curve more quickly so it can never go too fast.

Not possible to do that and still get the best performance.

The driver would still feel the lack of power.

Makes more sense to have a rev limiter and much easier to do too.


And you ****ed up uk.d-i-y in the newsgroup list, you have uk.diy

On Thu, 6 May 2021 06:34:31 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:

FLUSH the two subnormal sociopathic cretins' endless absolutely idiotic
blather

--
Typical retarded "conversation" between the Scottish ****** and the senile
Ozzietard:

Birdbrain: "Horse **** doesn't stink."

Senile Rodent: "It does if you roll in it."

Birdbrain: "I've never worked out why, I assumed it was maybe meateaters
that made stinky ****, but then why does vegetarian human **** stink? Is it
just the fact that we're capable of digesting meat?"

Senile Rodent: "Nope, some cow **** stinks too."

Message-ID:

On 5/05/21 6:39 am, Peeler wrote:
On Wed, 5 May 2021 02:31:42 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:

FLUSH the trolling senile asshole's latest troll**** unread

02:31??? AGAIN? Is your senility not letting you sleep in again, you
abnormal senile troll?

Peeler's eyes are simple eyespots, not lensed eyes that can resolve images.

On 5/05/21 6:40 am, Peeler wrote:
On Wed, 5 May 2021 03:33:20 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:

FLUSH the trolling senile pest's latest troll**** unread

Peeler's skin is only attached to the body along the center ridge of the
back and at the slime glands, and is filled with close to a third of the
body's blood volume, giving the impression of a blood-filled sack.

On 4/05/21 6:46 pm, Peeler wrote:
On Mon, 3 May 2021 20:01:29 -0600, lowbrowwoman, the endlessly driveling,
troll-feeding, senile idiot, blabbered again:

On 05/03/2021 10:13 AM, Commander Kinsey wrote:
Is it to warn you? Even my toilet cistern can slow down smoothly.

On cars? Yes. Cutting the engine abruptly when you hit the red line
wouldn't be good so they simulate ignition breakup to give you a hint.

Just what makes the unwashed Scottish ****** so irresistible to some of you
disgusting senile assholes? Is it the fact that he admitted that he never
wears any underwear? Or is it the fact that he rarely washes? Or both? YUCK!

Peeler is long and vermiform, and can exude copious quantities of a
milky and fibrous slime or mucus from some 100 glands or invaginations
running along his flank.

On 4/05/21 9:13 pm, Peeler wrote:
On Tue, 4 May 2021 20:53:18 +1200, Peter Keller, the dumb gay little
masochist, blabbered again:

Just what makes the unwashed Scottish ****** so irresistible to some of you
disgusting senile assholes? Is it the fact that he admitted that he never
wears any underwear? Or is it the fact that he rarely washes? Or both? YUCK!

Instead of vertically articulating jaws like Gnathostomata (vertebrates
with jaws), Peeler has a pair of horizontally moving structures with
tooth-like projections for pulling off food.

You must be the dumbest gay ****ty byker in the UK's streets! LOL


When Peeler is captured and held, e.g., by the tail, he secretes the
microfibrous mucus, which expands into up to 20 litres of sticky,
gelatinous material when combined with water.

On 6/05/21 8:45 am, Peeler wrote:
On Thu, 6 May 2021 06:34:31 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:

FLUSH the two subnormal sociopathic cretins' endless absolutely idiotic
blather


If Peler remains captured, he can tie himself in an overhand knot, which
works its way from the head to the tail