Sin Voltage

Symbol

Information

A Sinusoidal Voltage Source generates an AC voltage waveform that follows the equation:

\[V(t) = V_a \cdot \sin(2\pi \cdot F_r \cdot t + \Phi) + V_{off}\]

Where:

\(V(t)\) is the output voltage as a function of time
\(V_a\) is the amplitude of the sine wave (Volts)
\(F_r\) is the frequency of the sine wave (Hertz)
\(\Phi\) is the phase shift (degrees)
\(V_{off}\) is the DC offset voltage (Volts)

Ports

p: Positive terminal
n: Negative terminal

Model

The SinVoltage model represents a sinusoidal AC voltage source.

This model generates an alternating voltage signal that follows a sine wave function.

Attributes:

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

Fr (param): Frequency of the sine wave, default is 100 Hz.

Va (param): Amplitude of the sine wave, default is 10 V.

Ph (param): Phase shift in degrees, default is 0°.

Voff (param): DC offset voltage, default is 0 V.

Methods:

analog(): Implements the sinusoidal voltage equation:

\[V = V_a \cdot \sin(2\pi \cdot F_r \cdot t + \Phi) + V_{off}\]

from pyams.lib import model, signal, param, time
from pyams.lib import voltage
from math import sin, pi

class SinVoltage(model):
    """
    Sinusoidal voltage source model.
    """

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

        # Parameter declarations
        self.Fr = param(100.0, 'Hz', 'Frequency of sine wave')
        self.Va = param(10.0, 'V', 'Amplitude of sine wave')
        self.Ph = param(0.0, '°', 'Phase of sine wave')
        self.Voff = param(0.0, 'V', 'Voltage offset')

    def analog(self):
        """Implements the sinusoidal voltage equation."""
        self.V += self.Va * sin(2 * pi * self.Fr * time + (self.Ph * pi / 180.0)) + self.Voff

Command syntax

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

# Import the model
from pyams.models import SinVoltage

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