DYN_VCCS is a nonlinear voltage-controlled current or voltage source (VCVS) whose number of nodes and parameters are dynamic depending on the parameter EQN.

Name | Description | Unit Type | Default |
---|---|---|---|

ID | Device ID | VC1 | |

TNOM | Parameter extraction temperature | DegC | 27 |

TEMP | Device temperature | DegC | 27 |

MULT | Number of devices in parallel | 1 | |

TC1 | Linear temperature coefficient | 0 | |

TC2 | Quadratic temperature coefficient | 0 | |

TYPE | Current or Voltage source mode operation | current source or voltage source | |

EQN | Current equation | A0+A1*V0+A2*V1 |

**EQN.** This is the current equation. The number of
nodes is determined by the voltage variables V0, V1, etc. that are present in the
equation. The number of coefficients is based on any other variables that are present in
the equation.

For example, the equation A0 + A1*V0 + B0*V1 creates a four-node source due to the voltage variables V0 and V1. Three dynamic parameters are created: A0, A1, and B0.

You can use the following math functions in expressions for this parameter:

`sin`

, `cos`

, `tan`

,
`asin`

, `acos`

, `atan`

,
`sinh`

, `cosh`

, `tanh`

,
`abs`

, `min`

, `max`

,
`exp`

, `log`

, `log10`

,
`arcsin`

, `arccos`

, `arctan`

,
`pow`

, `sqrt`

, `sqr`

Functions `min`

, `max`

, and `pow`

take
two arguments; all others take one. `sqr`

and `sqrt`

are
both square-root functions.

**TYPE.**The current or voltage source mode operation.
Choose current source or voltage source from
the drop-down list to specify the mode.

Name | Description | Unit Type | Default |
---|---|---|---|

A0 | Coefficient | 0 | |

A1 | Coefficient | 0 | |

A2 | Coefficient | 0 |

The parameters A0, A1, and A2 are the default dynamic parameters. Any variables in the equation string of the EQN parameter are considered dynamic parameters with the exception of the variables Vx where x is any integer that is greater than or equal to zero.

This element does not have an assigned layout cell. You can assign artwork cells to any element. See “Assigning Artwork Cells to Layout of Schematic Elements” for details.