Documentation

Single-Phase Switch

Single-pole single-throw switch

Library

Switches & Breakers / Fundamental Components

Description

The Single-Phase Switch block models a single-pole single-throw switch that uses an external signal to connect port 1 to port 2 via internal resistance.

The table shows how the external signal vT controls the block behavior.

ConditionBlock BehaviorResistance Parameter Used
vT ThresholdThe switch is open. Port 1 is connected to port 2 via large internal resistance.Open conductance
vT > ThresholdThe switch is closed. Port 1 is connected to port 2 via small internal resistance.Closed resistance

Parameters

Closed resistance

Resistance between ports 1 and 2 when the switch is closed. The default value is 0.001 Ohm.

Open conductance

Conductance between ports 1 and 2 when the switch is open. The default value is 1e-6 1/Ohm.

r , Threshold

Threshold voltage for the control port vT. When the voltage is above the threshold, the switch is closed. The default value is 0 V.

Ports

The block has the following ports:

1

Electrical conserving port

2

Electrical conserving port

vT

Scalar control port, which is either a physical signal or an electrical port.

Introduced in R2013b

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