WOLFRAM SYSTEM MODELER

BoostConverter

Model of a DC/DC boost converter used to study rise time and output current ripple

Diagram

Wolfram Language

In[1]:=
SystemModel["IndustryExamples.Other.BoostConverter"]
Out[1]:=

Information

Dynamics

This is a model of a boost DC-DC converter. The parameters are taken from an example in the WhenEvent Wolfram Language documentation.

Simulation

To simulate the model, click the Simulate button in the top toolbar: simulate

Energy Conservation

Explore how the target voltage is achieved in the converter at steady state by looking at the Model plot that is automatically displayed:

In the plot you can now see that the input voltage is lower than the output voltage.

System Behavior

You can study the behavior of the system closer to steady-state by clicking the Load voltage at steady state Model plot.

Parameters

Try chaning the c1 and l1 parameters in the Parameters tab. See how it affects the rise time of the system. Changing the V0 parameter will change the reference point for the output voltage by changing the duty-ratio of the switch.

In order to get the full experience of this example, you need a desktop Wolfram Language product. A free trial download is available at www.wolfram.com/mathematica/trial/

For the full example, open the accompanying notebook BoostConverter.nb.

Parameters (7)

r1

Value: 22

Type: Resistance (Ω)

Description: Load resistance

c1

Value: 0.0001

Type: Capacitance (F)

Description: Capacitance constant

l1

Value: 0.2

Type: Inductance (H)

Description: Constant inductance

T

Value: 0.00005

Type: Time (s)

Description: Time for one period

D

Value: 1 - Vin / V0

Type: Real

Description: Duty-ratio

Vin

Value: 24

Type: Voltage (V)

Description: Reference input voltage

V0

Value: 36

Type: Voltage (V)

Description: Reference output voltage

Components (8)

constantVoltage

Type: ConstantVoltage

Description: Source for constant voltage

load

Type: Resistor

Description: Ideal linear electrical resistor

capacitor

Type: Capacitor

Description: Ideal linear electrical capacitor

inductor

Type: Inductor

Description: Ideal linear electrical inductor

ground

Type: Ground

Description: Ground node

controlSignal

Type: BooleanPulse

Description: Signal imitating MOS-fet transistor control signal

idealDiode

Type: IdealDiode

Description: Ideal diode

idealClosingSwitch

Type: IdealClosingSwitch

Description: Switch imitating MOS-fet transistor