Temperature compensation in LTSpice?

[Bill Bowden]

Is it possible to simulate circuit performance using LTSpice under
different temperature conditions? Say you have a single NPN transistor
with grounded emitter and a collector load and a resistor from base to
collector so the collector voltage is about half the supply voltage. I
understand the result would depend on the HFE of the transistor,
temperature, and maybe not very stable. Just wondering if LTSpice can
provide any interesting information for some particular transistor. DC
voltage change verses temperature.

-Bill

 

[John Larkin]

On Thu, 14 Feb 2013 18:45:56 -0800 (PST), Bill Bowden
<bperryb@bowdenshobbycircuits.info> wrote:

Is it possible to simulate circuit performance using LTSpice under
different temperature conditions? Say you have a single NPN transistor
with grounded emitter and a collector load and a resistor from base to
collector so the collector voltage is about half the supply voltage. I
understand the result would depend on the HFE of the transistor,
temperature, and maybe not very stable. Just wondering if LTSpice can
provide any interesting information for some particular transistor. DC
voltage change verses temperature.

-Bill

Here's a simple temperature sweep example:

https://dl.dropbox.com/u/53724080/Circuits/TC_diode_sweep.asc




--

John Larkin Highland Technology Inc
www.highlandtechnology.com jlarkin at highlandtechnology dot com

Precision electronic instrumentation
Picosecond-resolution Digital Delay and Pulse generators
Custom timing and laser controllers
Photonics and fiberoptic TTL data links
VME analog, thermocouple, LVDT, synchro, tachometer
Multichannel arbitrary waveform generators

 

[George Herold]

On Feb 14, 11:11 pm, John Larkin
<jjlar...@highNOTlandTHIStechnologyPART.com> wrote:

On Thu, 14 Feb 2013 18:45:56 -0800 (PST), Bill Bowden

bper...@bowdenshobbycircuits.info> wrote:
Is it possible to simulate circuit performance using LTSpice under
different temperature conditions? Say you have a single NPN transistor
with grounded emitter and a collector load and a resistor from base to
collector so the collector voltage is about half the supply voltage. I
understand the result would depend on the HFE of the transistor,
temperature, and maybe not very stable. Just wondering if LTSpice can
provide any interesting information for some particular transistor. DC
voltage change verses temperature.

-Bill

Here's a simple temperature sweep example:

https://dl.dropbox.com/u/53724080/Circuits/TC_diode_sweep.asc

Hey dropbox is pretty cool! (I need to investigate)

George H.

--

John Larkin                  Highland Technology Incwww..highlandtechnology.com  jlarkin at highlandtechnology dot com

Precision electronic instrumentation
Picosecond-resolution Digital Delay and Pulse generators
Custom timing and laser controllers
Photonics and fiberoptic TTL data links
VME  analog, thermocouple, LVDT, synchro, tachometer
Multichannel arbitrary waveform generators

 

[John Larkin]

On Fri, 15 Feb 2013 05:53:43 -0800 (PST), George Herold <gherold@teachspin.com>
wrote:

On Feb 14, 11:11 pm, John Larkin
jjlar...@highNOTlandTHIStechnologyPART.com> wrote:
On Thu, 14 Feb 2013 18:45:56 -0800 (PST), Bill Bowden

bper...@bowdenshobbycircuits.info> wrote:
Is it possible to simulate circuit performance using LTSpice under
different temperature conditions? Say you have a single NPN transistor
with grounded emitter and a collector load and a resistor from base to
collector so the collector voltage is about half the supply voltage. I
understand the result would depend on the HFE of the transistor,
temperature, and maybe not very stable. Just wondering if LTSpice can
provide any interesting information for some particular transistor. DC
voltage change verses temperature.

-Bill

Here's a simple temperature sweep example:

https://dl.dropbox.com/u/53724080/Circuits/TC_diode_sweep.asc

Hey dropbox is pretty cool! (I need to investigate)

Dropbox is fabulous. The same files appear on all your PCs, anywhere. I use it
for my mountain cabin automation system, as a painless and reliable way to share
files in real time. And for work+home projects: no more flash sticks!

I use it for sharing big files with my clients, too.


--

John Larkin Highland Technology Inc
www.highlandtechnology.com jlarkin at highlandtechnology dot com

Precision electronic instrumentation
Picosecond-resolution Digital Delay and Pulse generators
Custom timing and laser controllers
Photonics and fiberoptic TTL data links
VME analog, thermocouple, LVDT, synchro, tachometer
Multichannel arbitrary waveform generators