Re: A 6n140 curve-fitting model and a new CTR...

On Sat, 11 Sep 2010 09:44:13 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:

>On Sat, 11 Sep 2010 09:43:42 -0500, "Nik"
><Nik_2213@n_o_s_p_a_m.n_o_s_p_a_m.yahoo.co.uk> wrote:
>
>>After another deep search, I found a Spice model of related 6n140 at...
>>http://www.irtc-hq.com/pspicemodellibrary.html
>>
>>The sub-circuit uses a near-generic LED, two generic 2n2222 Qn (BF=100, VAF
>>~75), a 5k Q2 E-B resistor and a polynomial 'G' function to match the
>>product's curves. It does not pretend to be a manufacturer's physical model
>>but I'm left with scant choice. Although my measurements imply that 6n139's
>>Q1 & Q2 are dissimilar, I'll have to model them as twins and adjust the CTR
>>to suit...
>>
>>FWIW, there are models for some rare and unusual parts at that site,
>>including the classic 4n49 opto. No warranty intended or implied.
>>
>>Per site's terms & conditions, I'll only post list of their models.
>>
>>* Models included:
>>* UC1845 - UC1845 PWM controller
>>* 555 - 555 timer - fixes problems with PSpice library model
>>* HCPL5201 - Optocoupler
>>* HCPL5230 - Dual Optocoupler
>>* UC1707 - Dual Channel Power Driver IC
>>* MAX707 - &micro;P Supervisory IC
>>* TC4427 - Buffer/driver
>>* UCC1802 - PWM controller IC
>>* UCC1804 - PWM controller IC
>>* D1N3611 - 1N3611 diode
>>* OPAMPIB - near-ideal op amp macromodel
>>* OPAMPIC - near-ideal op amp macromodel
>>* BUFST - Schmitt trigger digital buffer macromodel
>>* VREGD - 3-terminal ideal regulator macromodel
>>* COMPI - near-ideal comparator
>>* ILOADB - current load macromodel
>>* EILIM - voltage source with current limit macromodel
>>*
>>
>>* Models included:
>>* LM117S - LM117 voltage regulator improved model
>>* 4N49N - 4N49 Optocoupler
>>* 6N140 - 6N140 Darlington Optocoupler
>>* PS2502 - PS2502 Optocoupler
>>* PS2501 - PS2501 Optocoupler
>>* 2823 - High voltage driver IC
>>* Q2N6058 - 2N6058 Darlington Power Transistor subcircuit
>>*
>>
>>* Models included:
>>* Q2N3585 - 2N3585 NPN transistor
>>* Q2N3868 - 2N3868 PNP transistor
>>* Q2N3506 - 2N3506 NPN transistor
>>* Q2N6032 - 2N6032 NPN transistor
>>* Q2N5794 - 2N5794 NPN transistor
>>*
>>===
>>Most models look generic, but some are $nn format eg...
>>* UC1845 PWM controller IC *
>>* connections: pins 1 - 8 sequential (8-pin pkge.)
>>SUBCKT UC1845 COMP VFB CS RTCT GND OUT VCC VREF
>>R_R1 VCC GND 1.4k
>>D_D7 GND VCC DZ34
>>R_R12 VCC $N_0001 10K
>>R_R13 $N_0001 VREF 60K
>>V_V1 $N_0002 GND DC 7.22V
>>X_U21 $N_0003 $N_0004 $G_DPWR $G_DGND BUFST
>>X_U7 $N_0004 $N_0005 $G_DPWR $G_DGND INV
>>R_R8 etc.	   
>>
>
>That's just a subcircuit that uses other part or subcircuit models...
>DZ34, BUFST and INV.
>					
>>---------------------------------------		
>>Posted through http://www.Electronics-Related.com
>
>How do you download?  The download button stays gray :-(

Never mind... it suddenly decided to work ??
		
                                        ...Jim Thompson
-- 
| James E.Thompson, CTO                            |    mens     |
| Analog Innovations, Inc.                         |     et      |
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
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| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
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