Diode-Bridge Voltage-Controlled Attenuator - simulation/results/small_vc_1.log

Overview Files Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

main

John Lauer Saif Abdessayed's diode-bridge VCA: KiCad project, Gerbers, BOM, simulations, reports, and the earlier RC filter test 45f3ff6 11d ago

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81


Note: No compatibility mode selected!


Circuit: * diode-bridge voltage-controlled attenuator

Doing analysis at TEMP = 27.000000 and TNOM = 27.000000

Using SPARSE 1.3 as Direct Linear Solver

Initial Transient Solution
--------------------------

Node                                   Voltage
----                                   -------
vcc                                         12
vee                                        -12
ctrl                                         1
ctrlf                                 0.990099
in                                           0
bufin                                        0
buf                                          0
out                                          0
bra                                    8.84433
bra_i                                  8.84433
brb_i                                  8.84433
brb                                    8.84433
brp                                    9.31507
brn                                    8.37367
opout                                  1.60415
sense                                 0.990083
base                                   1.59874
bop#branch                        -1.15038e-06
e_buf#branch                                 0
vin#branch                                   0
vctrl#branch                      -9.90099e-07
vee#branch                                   0
vcc#branch                        -0.000122042


No. of Data Rows : 10001

  Measurements for Transient Analysis

vout_pp             =  2.666745e-02 from=  2.000000e-02 to=  3.000000e-02
vin_pp              =  9.999938e-02 from=  2.000000e-02 to=  3.000000e-02
gain                =  2.66676e-01

Fourier analysis for v(out):
  No. Harmonics: 10, THD: 0.126404 %, Gridsize: 200, Interpolation Degree: 1

Harmonic Frequency   Magnitude   Phase       Norm. Mag   Norm. Phase
-------- ---------   ---------   -----       ---------   -----------
 0       0           2.46824e-05 0           0           0          
 1       1000        0.013319    -0.076644   1           0          
 2       2000        8.8296e-06  -90.003     0.000662932 -89.926    
 3       3000        1.43345e-05 -179.93     0.00107625  -179.85    
 4       4000        3.6746e-08  84.6314     2.75891e-06 84.708     
 5       5000        2.31773e-08 0.613265    1.74016e-06 0.689909   
 6       6000        2.28871e-09 2.97013     1.71838e-07 3.04678    
 7       7000        1.94485e-09 6.27027     1.46021e-07 6.34692    
 8       8000        1.72435e-09 7.50269     1.29466e-07 7.57933    
 9       9000        1.54649e-09 7.56265     1.16111e-07 7.6393     




Total analysis time (seconds) = 0.114

Total elapsed time (seconds) = 0.118 

Total DRAM available = 3647.488 MB.
DRAM currently available =  569.703 MB.
Maximum ngspice program size =   21.941 MB.
Current ngspice program size =   13.973 MB.

Shared ngspice pages =   11.539 MB.
Text (code) pages =    6.156 MB.
Stack = 0 bytes.
Library pages =    2.695 MB.