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Nexxim Simulator >
Nexxim Component Models >
Switches >
Voltage-Controlled Switch, SPDT

Voltage-Controlled Switch, SPDT

Netlist Format

An instance of avoltage-controlled single-pole, double throw switch has the following netlist syntax:

Exxx ( n1 n2 n3 n4 n5 ) VSPDT [ROFF=val] [RON=val] [IOFF=val] [ION=val] [AREA=val]

n1 is the input node, n2 is the “OFF” output node, n3 is the “ON” output node, n4 and n5 are the control nodes. The parentheses around the list of node names are required. The entry VSPDT identifies the element as a voltage-controlled SPDT switch.

**Voltage-Controlled Switch, SPDT Instance Parameters**
Parameter	Description	Units	Default
ROFF	Off resistance	Ohm	1e6
RON	On resistance	Ohm	1.0
VOFF	Control voltage for off state	Volt	0.0
VON	Control voltage for on state	Volt	1.0
AREA	Area scaling factor	None	1.0

Netlist Example

v1 c1 0 SIN(0 10 1e6) // Control voltage

R1 c1 0 1

Vn1 n1 0 10

Rn2 n2 0 10

Rn3 n3 0 10

E1 (n1 n2 n3 c1 0) vspdt von=1

Notes

1. In normal operation, VON is greater than VOFF. Output node n2 is selected whencontrol voltage VC is less than or equal to VOFF, and output node n3 is selected when VC is greater than or equal to VON.

2. In inverted operation, VOFF is greater than VON. Output node n2 is selected when VC is greater than or equal to VOFF, and output node n3 is selected when VC is less than or equal to VON.