Diode-Bridge Voltage-Controlled Attenuator - simulation/results/small_vc_1p5.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                                       1.5
ctrlf                                  1.48515
in                                           0
bufin                                        0
buf                                          0
out                                          0
bra                                     7.4854
bra_i                                   7.4854
brb_i                                   7.4854
brb                                     7.4854
brp                                    7.97611
brn                                    6.99474
opout                                  2.11269
sense                                  1.48513
base                                   2.10492
bop#branch                        -1.65412e-06
e_buf#branch                                 0
vin#branch                                   0
vctrl#branch                      -1.48515e-06
vee#branch                                   0
vcc#branch                        -0.000182904


No. of Data Rows : 10001

  Measurements for Transient Analysis

vout_pp             =  1.957497e-02 from=  2.000000e-02 to=  3.000000e-02
vin_pp              =  9.999938e-02 from=  2.000000e-02 to=  3.000000e-02
gain                =  1.95751e-01

Fourier analysis for v(out):
  No. Harmonics: 10, THD: 0.0734595 %, Gridsize: 200, Interpolation Degree: 1

Harmonic Frequency   Magnitude   Phase       Norm. Mag   Norm. Phase
-------- ---------   ---------   -----       ---------   -----------
 0       0           2.24784e-05 0           0           0          
 1       1000        0.0097808   -0.12435    1           0          
 2       2000        3.50027e-06 -89.931     0.000357871 -89.807    
 3       3000        6.27464e-06 -179.92     0.000641526 -179.79    
 4       4000        1.02542e-08 63.3596     1.0484e-06  63.4839    
 5       5000        9.66708e-09 1.77017     9.88373e-07 1.89451    
 6       6000        3.06945e-09 5.15128     3.13824e-07 5.27562    
 7       7000        2.62291e-09 6.20035     2.68169e-07 6.3247     
 8       8000        2.31099e-09 7.21292     2.36278e-07 7.33727    
 9       9000        2.0502e-09  8.04597     2.09615e-07 8.17032    




Total analysis time (seconds) = 0.14

Total elapsed time (seconds) = 0.143 

Total DRAM available = 3647.488 MB.
DRAM currently available =  569.441 MB.
Maximum ngspice program size =   21.949 MB.
Current ngspice program size =   14.090 MB.

Shared ngspice pages =   11.652 MB.
Text (code) pages =    6.156 MB.
Stack = 0 bytes.
Library pages =    2.703 MB.