Quotation of the day

[John Larkin]

Homer is afraid of all women.

Probably so.

It seems to me that most men don't actually like women. They want
them, but don't like them.

I like women, the smarter the better.

John

 

[flipper]

"Kind and polite" ? I don't understand what you're saying.

I understand, because you're using the 'right wing' definition of the
words

'Left wing' definition is "I didn't call you a <insert sexual
innuendo> neo fascist <insert genetic innuendo> Nazi <insert religious
innuendo> pig <insert physical appearance innuendo> <insert

 

[Jim Thompson]

Probably so.

It seems to me that most men don't actually like women. They want
them, but don't like them.

I like women, the smarter the better.

John

Absolutely! I like to be sweet talked ;-)

...Jim Thompson

 

[Homer J Simpson]

OK, but don't seek medical care for that condition. JE got rich suing
doctors for malpractice, which makes medical care more expensive and
less available for everyone.

MYTH.

In states with limits on malpractice pain and suffering the insurance rates
are higher not lower.

I bet none of the doctors who whine about the costs of such insurance would
be willing to see such limits put on other causes such as auto accidents.

 

[Homer J Simpson]

I'm not afraid of strong, smart, skinny, funny, cute women who make a
lot of money. I married one and fathered two more.

Go watch Jurassic Park again. The raptors were based on Coulter, but they
had to tone the meanness down some. Even raptors weren't that vicious.

 

[krw]

No.

In states with limits on malpractice pain and suffering the insurance rates
are higher not lower.

Corelation <> causation (I would have expected an engineer to pick up
on that one). Ya' think they could have put limits on malpractice
because their insurance was going through the roof?

I bet none of the doctors who whine about the costs of such insurance would
be willing to see such limits put on other causes such as auto accidents.

It's your money. Place the bet, but my bet is that you're wrong.
Doctors are high profile targets for car insurance scammers too.
There should be limits an ALL liability.

 

[John Larkin]

Corelation <> causation (I would have expected an engineer to pick up
on that one).

He's not an engineer.

John

 

[John Larkin]

Go watch Jurassic Park again. The raptors were based on Coulter, but they
had to tone the meanness down some. Even raptors weren't that vicious.

Gosh, you do live in a fantasy world. I suppose everything you know,
you learned from movies. And cartoons.

John

 

[Jim Thompson]

Gosh, you do live in a fantasy world. I suppose everything you know,
you learned from movies. And cartoons.

John

Not to mention that the book Jurassic Park was made into a movie well
before Ann was a public figure.

...Jim Thompson

 

[Michael A. Terrell]

Probably so.

It seems to me that most men don't actually like women. They want
them, but don't like them.

I like women, the smarter the better.

John

Me too. Someone who can hold their own, in any situation. Plastic,
cartoon-type bimbos are nice to look at, but boring.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

 

[Homer J Simpson]

He's not an engineer.

But my logical skills are infinitely superior to yours.

 

[Homer J Simpson]

Not to mention that the book Jurassic Park was made into a movie well
before Ann was a public figure.

Jim and John
Sitting in a tree
K I S S
I N G

 

[Terry Given]

message



Jim and John
Sitting in a tree
K I S S
I N G

I hate to sound a bit like MP, but FOR FUCKS SAKE, ARE YOU RETARDED OR WHAT?

at least 6-year-olds have a good excuse.

you have confirmed that you are not an engineer (not that engineers are
necessarily better than non-engineers, I've met plenty of bad ones) and
are in fact an HVAC tech.

Almost all of your posts have NOTHING whatsoever to do with electronics
(I think there is a strong correlation here; it appears you dont know
much about electronics, hence the lack of such posts), but are instead
seriously inane attempts at insults, which most of us grew out of not
long after developing pubic hair.

I might not necessarily agree with everything John and Jim say (although
with her mouth shut, ann coulter *is* quite attractive), but I have a
great deal of respect for them - they have *earned* that by being damned
good at what they do (when I was a kid I spent a lot of my pocket money
buying chips Jim designed), and being extremely helpful here on SED (I'm
sure I'm not alone in having learned a great deal from them).

If you have to hurl insults, at least try and think up clever ones, as
opposed to making yourself look like a disgruntled 6-year-old.

GROW UP!

Cheers
Terry

 

[Jim Thompson]

I hate to sound a bit like MP, but FOR FUCKS SAKE, ARE YOU RETARDED OR WHAT?

at least 6-year-olds have a good excuse.

you have confirmed that you are not an engineer (not that engineers are
necessarily better than non-engineers, I've met plenty of bad ones) and
are in fact an HVAC tech.

Almost all of your posts have NOTHING whatsoever to do with electronics
(I think there is a strong correlation here; it appears you dont know
much about electronics, hence the lack of such posts), but are instead
seriously inane attempts at insults, which most of us grew out of not
long after developing pubic hair.

I might not necessarily agree with everything John and Jim say (although
with her mouth shut, ann coulter *is* quite attractive), but I have a
great deal of respect for them - they have *earned* that by being damned
good at what they do (when I was a kid I spent a lot of my pocket money
buying chips Jim designed), and being extremely helpful here on SED (I'm
sure I'm not alone in having learned a great deal from them).

If you have to hurl insults, at least try and think up clever ones, as
opposed to making yourself look like a disgruntled 6-year-old.

GROW UP!

Cheers
Terry

So ask a technically useful question already ;-)

...Jim Thompson

 

[Terry Given]

So ask a technically useful question already ;-)

...Jim Thompson

OK,

Im playing with an el-cheapo smps controller. Its peak-current-mode
control, and uses the BE junction of an NPN to detect peak current, and
turn the switch off. Of course Vbe varies strongly with T.

Normally I use a TL431 etc for voltage feedback; it has a nice stable
reference. I just choose my current sense resistor for min Vbe (max T),
and the magic of -ve feedback makes sure all is well. yay.

the circuit is pretty simple, the 431 pulls down on a pnp (crappy
mirror) which feeds current into an R, also connected to the base (there
is an R from B to Rs) so the base voltage is the sum of IRs and the
error amp output voltage.


This time, however, I want to use it as a current regulator. There is
still a setpoint, but no error amp (other than the NPN), so alas all my
-ve feedback "magic" stops working, so I have to:

a) temp-comp the setpoint (or NPN, but I want to keep I*Rs low), or

b) add some other form of current sensor, a T-stable reference and an
error amp, which I dont want to do.


so far the best I have come up with is placing a Vbe multiplier (using
the other transistor in the NPN's sot-323 package) in series with my
setpoint voltage. If I choose the Vbe multiplier scale factor to be the
reciprocal of the resistive divider formed from Vsetpoint to Rs, then
the divided-down scaled-up Vbe temperature change exactly (ish) cancels
out the dVbe of the NPN.

kinda:


Vsetpoint----[Vbe multiplier]---[R1]----+-----B of CE NPN
| \
0V--[Rs]--+---------------------[R2]----+ 0V
|
to switch Source (or E)


R1,R2 >> Rs

so I get:

Vbe1 - dVbe1 = (I*Rs)*R1/(R1+R2) + (Vs - K*(Vbe2 - dVbe2))*R2/(R1+R2)

and if the 2 BJTs are at the same temperature, then dVbe1 = dVbe2

so all I have to do is choose K = (R1+R2)/R1.


but it feels kinda icky.

Cheers
Terry

 

[Homer J Simpson]

I hate to sound a bit like MP, but FOR FUCKS SAKE, ARE YOU RETARDED OR
WHAT?

at least 6-year-olds have a good excuse.

you have confirmed that you are not an engineer (not that engineers are
necessarily better than non-engineers, I've met plenty of bad ones) and
are in fact an HVAC tech.

Nope. You haven't been paying attention so who is retarded? I actually have
two separate trade qualifications, some advanced trade qualifications, a
degree and considerable experience in a number of strange technical or
related fields.

Almost all of your posts have NOTHING whatsoever to do with electronics (I
think there is a strong correlation here; it appears you dont know much
about electronics, hence the lack of such posts), but are instead
seriously inane attempts at insults, which most of us grew out of not long
after developing pubic hair.

You may be a pussy who will let two dicks like Jim and John insult you. I am
not.

If you have to hurl insults, at least try and think up clever ones, as
opposed to making yourself look like a disgruntled 6-year-old.

I pitch my insults to the mentality of the targets.

GROW UP!

I am rubber. You are glue.

 

[Jim Thompson]

Jim Thompson wrote: [snip]

So ask a technically useful question already ;-)

...Jim Thompson

OK,

Im playing with an el-cheapo smps controller. Its peak-current-mode
control, and uses the BE junction of an NPN to detect peak current, and
turn the switch off. Of course Vbe varies strongly with T.

Normally I use a TL431 etc for voltage feedback; it has a nice stable
reference. I just choose my current sense resistor for min Vbe (max T),
and the magic of -ve feedback makes sure all is well. yay.

the circuit is pretty simple, the 431 pulls down on a pnp (crappy
mirror) which feeds current into an R, also connected to the base (there
is an R from B to Rs) so the base voltage is the sum of IRs and the
error amp output voltage.


This time, however, I want to use it as a current regulator. There is
still a setpoint, but no error amp (other than the NPN), so alas all my
-ve feedback "magic" stops working, so I have to:

a) temp-comp the setpoint (or NPN, but I want to keep I*Rs low), or

b) add some other form of current sensor, a T-stable reference and an
error amp, which I dont want to do.


so far the best I have come up with is placing a Vbe multiplier (using
the other transistor in the NPN's sot-323 package) in series with my
setpoint voltage. If I choose the Vbe multiplier scale factor to be the
reciprocal of the resistive divider formed from Vsetpoint to Rs, then
the divided-down scaled-up Vbe temperature change exactly (ish) cancels
out the dVbe of the NPN.

kinda:


Vsetpoint----[Vbe multiplier]---[R1]----+-----B of CE NPN
| \
0V--[Rs]--+---------------------[R2]----+ 0V
|
to switch Source (or E)


R1,R2 >> Rs

so I get:

Vbe1 - dVbe1 = (I*Rs)*R1/(R1+R2) + (Vs - K*(Vbe2 - dVbe2))*R2/(R1+R2)

and if the 2 BJTs are at the same temperature, then dVbe1 = dVbe2

so all I have to do is choose K = (R1+R2)/R1.


but it feels kinda icky.

Cheers
Terry

Can you post a schematic? I don't understand words very well ;-)

...Jim Thompson

 

[ehsjr]

Corelation <> causation (I would have expected an engineer to pick up
on that one). Ya' think they could have put limits on malpractice
because their insurance was going through the roof?




It's your money. Place the bet, but my bet is that you're wrong.
Doctors are high profile targets for car insurance scammers too.
There should be limits an ALL liability.

And, according to Shakespeare, more dead lawyers.

Ed

 

[MassiveProng]

Is there anyone (besides AlwaysWrong your honorable self) who isn't an
utter idiot?

John

I must be at least a mild idiot for giving any of my time to utter
idiots like you. Is that the answer you were looking for?

 

[ehsjr]

So ask a technically useful question already ;-)

...Jim Thompson

Ok - how do we send 100,000 volts to Homer's PC?

Ed