1. Dr. Giovani Fusina Defence Research and Development Canada - Data from Thane Heins Ottawa University Lab, Bi-Transformer set-up
October 24 2009, 10:40 a.m.
V_in, I_in, V_load measured off multimeters
V_in I_in f f V_Load R_load P_in P_load P_load/P_in Efficiency %
(V) (mA) (degrees) (pf) (V) (ohms) (mW) (mW)
30 4.44 89.5 0.009 0.566 10 1.1623781 32.0356 27.560396 2700.00%
50 7.27 89 0.017 0.929 10 6.3439594 86.3041 13.604138 1360%
60.4 8.77 87 0.05 1.121 10 27.722788 125.6641 4.532881 453%
79.5 11.5 87 0.05 1.474 10 47.848172 217.2676 4.5407712 454%
91 13.12 87 0.05 1.683 10 62.484976 283.2489 4.5330721 453%
108.9 15.71 87 0.05 2.014 10 89.537393 405.6196 4.5301699 453%
131 18.83 89.5 0.009 2.412 10 21.526073 581.7744 27.0265 2700%
144.3 20.72 89 0.017 2.655 10 52.180959 704.9025 13.508807 1350%
f measured off oscilloscope Calculated values: P_in = V_in*I_in*cos(f) ; P_load = (V_load)**2/R_load

2. Transformer set-up
Efficiency %
P_load = (V_load)**2/R_load