CMOS inverter output to Biopolar

[Boki]

Hi All,

I use a CMOS inverter ( NMOS + PMOS , discrete), its output connects to
a biopolar nmos' input, the inverter's output will be locked to 0.7V,
what should I do...

the biopolar acts as a current source for LED driving.

Best regards,
Boki.

 

[Winfield Hill]

Boki wrote...

I use a CMOS inverter ( NMOS + PMOS , discrete), its output
connects to a biopolar nmos' input, the inverter's output
will be locked to 0.7V, what should I do...

the biopolar acts as a current source for LED driving.

If it was bipolar you were using I'd say, add a resistor.
But since you're using biopolar, you have to use a neuron.

 

[Boki]

Boki wrote...

If it was bipolar you were using I'd say, add a resistor.
But since you're using biopolar, you have to use a neuron.

Sorry, could you please decribe a little more ?

I don't know what is the neuron...

Best regards,
Boki.

 

[Winfield Hill]

Boki wrote...

Sorry, could you please decribe a little more ?
I don't know what is the neuron...

It's what you think with. "bio" - biology, get it?

Sorry, boki, but when you serve up those fat straight lines
we just have to take a swing at them.

p.s. Google is your friend in understanding English.

 

[John Larkin]

Boki wrote...

If it was bipolar you were using I'd say, add a resistor.
But since you're using biopolar, you have to use a neuron.

Google "resistor."

John

 

[Tim Shoppa]

its output connects to
a biopolar nmos' input

"Bipolar NMOS" is self-contradictory. You might mean a NMOS or bipolar
or sink-only driver or source-only driver, though.

the inverter's output will be locked to 0.7V,

Then it's not an inverter. It's 0.7V source with zero impedance. Real
drivers are source, sink, or source-sink.

what should I do...

Go outside, get fresh air, etc.

the biopolar acts as a current source for LED driving.

Figure out if it's a source or a sink. Figure out if it's bipolar (NPN,
PNP) or MOS (PMOS, NMOS, DMOS, etc.)

Almost certainly your latest round of questions is answered in a early
70's TTL databook, Lancaster's CMOS cookbook, AOE in the section about
interfacing to LED's/lamps, etc.

Tim.

 

[Jim Thompson]

Boki wrote...

It's what you think with. "bio" - biology, get it?

Sorry, boki, but when you serve up those fat straight lines
we just have to take a swing at them.

p.s. Google is your friend in understanding English.

ROTFLMAO!

...Jim Thompson

 

[Boki]

Boki wrote...

It's what you think with. "bio" - biology, get it?

Sorry, boki, but when you serve up those fat straight lines
we just have to take a swing at them.

p.s. Google is your friend in understanding English.

still don't get it.
I never study a "neuron" word in EE courses..

 

[Boki]

ROTFLMAO!

...Jim Thompson

ªL¯ª¶ý¥d¦n

 

[Boki]

Google "resistor."

John

http://www.google.com/search?hl=en&...ll&resnum=0&ct=result&cd=1&q=resistor&spell=1

then ?

 

[Boki]

"Bipolar NMOS" is self-contradictory. You might mean a NMOS or bipolar
or sink-only driver or source-only driver, though.


Then it's not an inverter. It's 0.7V source with zero impedance. Real
drivers are source, sink, or source-sink.


Go outside, get fresh air, etc.


Figure out if it's a source or a sink. Figure out if it's bipolar (NPN,
PNP) or MOS (PMOS, NMOS, DMOS, etc.)

Almost certainly your latest round of questions is answered in a early
70's TTL databook, Lancaster's CMOS cookbook, AOE in the section about
interfacing to LED's/lamps, etc.

Tim.

Thanks.... try the thinking way is another kind of learning...

Of course, study reference is very important.

 

[Spehro Pefhany]

still don't get it.
I never study a "neuron" word in EE courses..

Really? What kind of EE courses are they teaching these days in
Taiwan? A neuron is just one element of a neural network.

Best regards,
Spehro Pefhany

 

[Jim Thompson]

Really? What kind of EE courses are they teaching these days in
Taiwan? A neuron is just one element of a neural network.

Best regards,
Spehro Pefhany

Sno-o-o-o-ort ;-)

...Jim Thompson

 

[Tim Shoppa]

still don't get it.
I never study a "neuron" word in EE courses..

Somebody who OBVIOUSLY never took a class from Carver Mead .

Not that I'm a Carver Mead devotee or anything. The instant I hear
anyone talking about neural nets I tune them out!

Tim.

 

[Boki]

Boki wrote...

If it was bipolar you were using I'd say, add a resistor.
But since you're using biopolar, you have to use a neuron.

typo is so funny? ..... = = .... ( save time to make something really
productive that is very meaning)


It seems that it needs very large value resistor ( > 1000K ), am I
right?

I take a simple try in PSPICE, I still ge 2.32v in inverter's
output....

Boki.

 

[John B]

Boki scrobe on the papyrus:

Thanks.... try the thinking way is another kind of learning...

Of course, study reference is very important.

Hi Boki,

I've just spent half an hour Googling all the stuff you need, then I
spent the next half hour reading it all for you. As we agreed some time
ago, that's another $75 you owe me.

 

[Pooh Bear]

Hi All,

I use a CMOS inverter ( NMOS + PMOS , discrete), its output connects to
a biopolar nmos' input, the inverter's output will be locked to 0.7V,
what should I do...

the biopolar acts as a current source for LED driving.

nmos isn't bipolar.

What are you talking about ?

Graham

 

[JeffM]

the biopolar acts as a current source for LED driving.

still don't get it.
Boki

*Biopolars*
http://66.102.9.104/images?q=Klondike+Snow+bears

 

[Michael A. Terrell]

*Biopolars*
http://66.102.9.104/images?q=Klondike+Snow+bears

Just watch out for the bipolar bears. ;-)


--
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

 

[Boki]

John B 寫�：

Boki scrobe on the papyrus:


Hi Boki,

I've just spent half an hour Googling all the stuff you need, then I
spent the next half hour reading it all for you. As we agreed some time
ago, that's another $75 you owe me.

No, I have said, $0.00000000000000000000000075 for one year.

Best regards,
Boki.