 Exponentials Current - MapleSim Help

Exponentials Current

Rising and falling exponential current source  Description The Exponentials Current source generates a single current pulse which first rises and then falls. The rising and falling edges are exponentials. Equations $i={i}_{p}=-{i}_{n}={I}_{0}+{I}_{\mathrm{max}}\left\{\begin{array}{cc}0& t<{T}_{0}\\ 1-\mathrm{exp}\left(-\frac{t-{T}_{0}}{{\mathrm{\tau }}_{r}}\right)& {T}_{0}\le t\le {T}_{0}+{T}_{r}\\ \left(1-\mathrm{exp}\left(-\frac{\mathrm{Tr}}{{\mathrm{\tau }}_{r}}\right)\right)\left(1-\mathrm{exp}\left(-\frac{t-{T}_{0}}{{\mathrm{\tau }}_{f}}\right)\right)& \mathrm{otherwise}\end{array}$ $v={v}_{p}-{v}_{n}$ Variables

 Name Units Description Modelica ID $v$ $V$ Voltage drop between the two pins v ${v}_{x}$ $V$ Voltage at pin $x$, $x\in \left\{n,p\right\}$ x.v $i$ $A$ Current flowing from pin $p$ to pin $n$ i ${i}_{x}$ $A$ Current into pin $x$, $x\in \left\{n,p\right\}$ x.i Connections

 Name Description Modelica ID $p$ Positive pin p $n$ Negative pin n Parameters

 Name Default Units Description Modelica ID ${\mathrm{\tau }}_{r}$ $0.1$ $s$ Rise time constant riseTimeConst ${\mathrm{\tau }}_{f}$ ${\mathrm{\tau }}_{r}$ $s$ Fall time constant fallTimeConst ${T}_{0}$ $0$ $s$ Time offset (start time) startTime ${T}_{r}$ $0$ $s$ Rise time riseTime ${I}_{\mathrm{max}}$ $1$ $A$ Upper bound for rising edge iMax ${I}_{0}$ $0$ $A$ Current offset offset Modelica Standard Library The component described in this topic is from the Modelica Standard Library. To view the original documentation, which includes author and copyright information, click here.