DC Voltage

Symbol

Information

A DC voltage source provides a constant voltage regardless of the current or circuit conditions. The output voltage remains fixed at a specified value:

\[V = V_{dc}\]

Where:

\(V\) is the output voltage (Volts)
\(V_{dc}\) is the constant DC voltage value (default: 15V)

Ports

p: Positive terminal
n: Negative terminal

Model

The DCVoltage model represents a constant voltage source.

This model provides a fixed DC voltage, independent of current flow or other elements in the circuit.

Attributes:

V (signal): Output voltage across terminals (p, n).

Vdc (param): Constant voltage value, default is 15V.

Methods:

analog(): Defines the constant voltage output equation:

\[V = V_{dc}\]

from pyams.lib import model, signal, param, voltage

class DCVoltage(model):
    """
    DC voltage source model providing a constant voltage.
    """

    def __init__(self, p, n):
        # Signal declaration
        self.V = signal('out', voltage, p, n)

        # Parameter declaration
        self.Vdc = param(15.0, 'V', 'Value of constant voltage')

    def analog(self):
        """Defines the constant voltage output equation."""
        self.V += self.Vdc  # V = Vdc

Command syntax

The syntax for defining a DC voltage source in a PyAMS simulation:

# Import the model
from pyams.models import DCVoltage

# Vname: is the name of the voltage source instance
# p, n: The connection points in the circuit
Vname = DCVoltage(p, n)