SimElectronics™

SFFM Voltage Source - Model single-frequency FM voltage source

Library

SPICE-Compatible Sources

Description

The SFFM Voltage Source block represents a single-frequency voltage source whose frequency-modulated output voltage value is independent of the current through the source. The following equation describes the output voltage as a function of time:

where:

• V0 is the Voltage offset, VO parameter value.

• VA is the Voltage amplitude, VA parameter value.

• FC is the Carrier frequency, FC parameter value.

• MI is the Modulation index, MI parameter value.

• FS is the Signal frequency, FS parameter value.

Dialog Box and Parameters

Voltage offset, VO

The magnitude of the time-independent part of the output voltage. The default value is 0 V.

Voltage amplitude, VA

The magnitude of the sinusoidal part of the output voltage. The default value is 0 V.

Carrier frequency, FC

Frequency of the carrier wave. The default value is 0 Hz. The value must be greater than or equal to 0.

Modulation index, MI

The amount by which the modulated signal varies around its unmodulated level. The default value is 0. The value must be greater than or equal to 0.

Signal frequency, FS

Frequency of the modulated signal. The default value is 0 Hz. The value must be greater than or equal to 0.

Ports

The block has the following ports:

+

Positive electrical voltage.

-

Negative electrical voltage.

See Also

SFFM Current Source

SFFM Current Source

Shunt Motor