Resistive Load

The Resistive Load subcircuit models a constant resistive load. This subcircuit is used by a number of built in test objectives. The resistance value can be set directly using the Res() function or can be automatically calculated from the output voltage using the IRes() function.

In this topic:

Model Name Resistive Load
Simulator This device is compatible with both the SIMetrix and SIMPLIS simulators.
Parts Selector
Menu Location
  • DVM > Loads > DVM Output Load - 2 Terminal
  • DVM > Loads > DVM Output Load - 3 Terminal
  • DVM > Loads > DVM Output Load - 4 Terminal
Symbol Library None - the symbol is automatically generated when placed or edited.
Model File SIMPLIS_DVM_ADVANCED.lb
Subcircuit Name
  • SIMPLIS_DVM_ADVANCED_LOAD_2T_RES
  • SIMPLIS_DVM_ADVANCED_LOAD_3T_RES
  • SIMPLIS_DVM_ADVANCED_LOAD_4T_RES
Symbols
Schematic - 2 Terminal
Schematic - 3 Terminal
Schematic - 4 Terminal

Parameters

The following table explains the parameters used in the Resistive Load.

Parameter Name Default Data Type Range Units Parameter Description
LOAD_NAME LOAD String n/a n/a Name of the DVM load. This name cannot contain spaces.
LOAD_RESISTANCE 2.00667 Real Min: 0 Sets the load resistance of the load.

Testplan Entry

To set any managed DVM load to a Resistive Load subcircuit, place a Res() or IRes() testplan entry in the Load column.

The Res() testplan entry sets the load resistance directly. The IRes() testplan entry calculates the load resistance from a given current, nominal output voltage, and the load line resistance. The syntax for the two testplan entries are explained in the table below.

Res(REF, LOAD_RESISTANCE)
IRes(REF, CURRENT)
Argument Range Description
REF n/a The actual reference designator of the DVM load or the more generic syntax of OUTPUT:n where n is an integer indicating a position in the list of DVM loads
LOAD_RESISTANCE min: 0 The actual, numerical resistance value for the load. No interpretation of symbolic values is made on the provided numeric value.
CURRENT min: 0 The DC Current for the load. The LOAD_RESISTANCE parameter is calculated from the nominal output voltage, load line resistance, and the provided CURRENT. The load is modeled as a resistance.