WOLFRAM SYSTEMMODELER

IdealSwitch

Ideal electrical switch

Wolfram Language

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SystemModel["Modelica.Electrical.Analog.Interfaces.IdealSwitch"]
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Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

The ideal switch has a positive pin p and a negative pin n. The switching behaviour is controlled by the boolean signal off. If off is true, pin p is not connected with negative pin n. Otherwise, pin p is connected with negative pin n.

In order to prevent singularities during switching, the opened switch has a (very low) conductance Goff and the closed switch has a (very low) resistance Ron. The limiting case is also allowed, i.e., the resistance Ron of the closed switch could be exactly zero and the conductance Goff of the open switch could be also exactly zero. Note, there are circuits, where a description with zero Ron or zero Goff is not possible.

Please note: In case of useHeatPort=true the temperature dependence of the electrical behavior is not modelled. The parameters are not temperature dependent.

Connectors (3)

p

Type: PositivePin

Description: Positive pin (potential p.v > n.v for positive voltage drop v)

n

Type: NegativePin

Description: Negative pin

heatPort

Type: HeatPort_a

Description: Conditional heat port

Parameters (4)

useHeatPort

Value: false

Type: Boolean

Description: =true, if heatPort is enabled

T

Value: 293.15

Type: Temperature (K)

Description: Fixed device temperature if useHeatPort = false

Ron

Value: 1.E-5

Type: Resistance (Ω)

Description: Closed switch resistance

Goff

Value: 1.E-5

Type: Conductance (S)

Description: Opened switch conductance