Posted by dB [ 195.23.136.194 ] on February 02, 2006 at 05:05:58:

A) How to measure Spice parameters? (Hi, Wayne)
How to get the parameters for (Spice) speaker mechanical reactance C, L, R?
B) Also I would like to know how to introduce a POT. on the x-over circuit.
What and Where should I touch (change)? Thanks. Regards.
PS. Congratulations for the Best Sub in the World.

POT1.CIR - POTENTIOMETER MODEL
*
* WIPER POSITION: 0V=CCW, 1V=CW
VPOS 20 0 PWL(0MS 0V 100MS 1V)
RPOS 20 0 1MEG
*
* OFFSET VOLTAGE TRIM
VS 10 0 10V
R1 10 11 9.5K
XPOT1 0 12 11 20 0 POT_1K
RL 12 0 100K
*
* RESISTANCE VALUE TRIM
IS 0 15 1A
XPOT2 15 16 16 20 0 POT_1K
R2 16 0 19.5K
*
*
* POTENTIOMETER SUBCIRCUIT
*
* TERMINALS: 1-CCW , 2-WIPER, 3-CW
* WIPER POSITION VOLTAGE: 7-POS,8-NEG
*
.SUBCKT POT_1K 1 2 3 7 8
E_RA 1 4 VALUE = { V(7,8) * 1K * I(VSENSE1) }
VSENSE1 4 5 DC 0V
RS 5 2 1
E_RB 5 6 VALUE = { (1-V(7,8)) * 1K * I(VSENSE2) }
VSENSE2 6 3 DC 0V
.ENDS

Replies:

• Re: SPICE parameters - Wayne Parham 09:52:37 02/02/06 (2)
  • Re: SPICE parameters - dB 06:04:55 02/03/06 (1)
    • Re: SPICE parameters - Wayne Parham 13:25:55 02/03/06 (0)