SignalPWM
Generates a pulse width modulated (PWM) boolean fire signal
Library
Modelica/Electrical/PowerConverters/DCDC/Control
Description
This controller can be used both for DC/DC and AC/DC converters.
The signal input of the PWM controller is the duty cycle; the duty cycle is the ratio of the on time
to the switching period. The output firing signal is strictly determined by the actual duty cycle, indicated as d in Fig. 1.
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The firing signal is generated by comparing the sampled duty cycle input with a periodic saw tooth signal [Williams2006].
Parameters
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
mo_useConstantDutyCycle | useConstantDutyCycle | Enables constant duty cycle | Number | 0 |
mo_constantDutyCycle | constantDutyCycle | Constant duty cycle | Scalar | |
mo_f | f | Switching frequency | Scalar | |
mo_startTime | startTime | Start time | Scalar |
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
mo_dutyCycle | dutyCycle | dutyCycle | Structure | |
mo_dutyCycle/fixed | fixed | Cell of scalars | true | |
mo_dutyCycle/start | start | Cell of scalars | ||
mo_fire | fire | fire | Structure | |
mo_fire/fixed | fixed | Cell of scalars | true | |
mo_fire/start | start | Cell of scalars | ||
mo_notFire | notFire | notFire | Structure | |
mo_notFire/fixed | fixed | Cell of scalars | true | |
mo_notFire/start | start | Cell of scalars |
Ports
| Name | Type | Description | IO Type | Number |
|---|---|---|---|---|
fire | implicit | Firing PWM signal | output | 1 |
notFire | implicit | Firing PWM signal | output | 2 |
Port 3 | implicit | Duty cycle | input | 1-mo_useConstantDutyCycle |