Definition and implementation of a global EV ... - Park & Charge
Definition and implementation of a global EV ... - Park & Charge
Definition and implementation of a global EV ... - Park & Charge
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final report<br />
characteristic #1: diode in parallel to the indicating resistor<br />
PI+<br />
1 kΩ<br />
R PI ±u PI<br />
u 0<br />
PI-<br />
Figure 9: Power indicator with enhanced indicating range<br />
The diode will double the proportional factor. This will result in the formula:<br />
I<br />
mainsAC<br />
= 40 ⋅<br />
U<br />
U<br />
PI<br />
0<br />
[A], Imin = 0 A, Imax = 32 A<br />
characteristic #2: diode in series to the indicating resistor<br />
PI+<br />
1 kΩ<br />
R PI<br />
±u PI<br />
u 0<br />
PI-<br />
Figure 10: Power indicator with shifted indicating range<br />
In this case the diode causes an <strong>of</strong>fset <strong>of</strong> 32A. The proportional factor changes its sign:<br />
I<br />
mainsAC<br />
= 32 − 20 ⋅<br />
U<br />
U<br />
negative<br />
0<br />
[A], Imin = 16 A, Imax = 32 A<br />
Resistor values<br />
17/01/2008 24 Infrastructure for electrical vehicles
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