ChopperStepDown_R

Step down chopper with resistive load

Diagram

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

This example demonstrates the switching on of a resistive load operated by a step down chopper. DC output voltage is equal to dutyCycle times the input voltage. Plot current currentSensor.i, averaged current meanCurrent.y, total voltage voltageSensor.v and voltage meanVoltage.v.

Parameters (8)

f

Value: 1000

Type: Frequency (Hz)

Description: Switching frequency

Vsource

Value: 60

Type: Voltage (V)

Description: Source voltage

L

Value: 25e-3

Type: Inductance (H)

Description: Source inductance

C

Value: 20e-6

Type: Capacitance (F)

Description: Smoothing capacitance

dutyCycle

Value: 0.20

Type: Real

Description: Duty cycle

ILoad

Value: 1.2

Type: Current (A)

Description: Load current

RLoad

Value: V0 / ILoad

Type: Resistance (Ω)

Description: Load resistance

V0

Value: Vsource * dutyCycle

Type: Voltage (V)

Description: No-load output voltage

Components (13)

constantVoltage

Type: ConstantVoltage

chopperStepDown

Type: ChopperStepDown

currentSensor

Type: CurrentSensor

voltageSensor

Type: VoltageSensor

ground

Type: Ground

signalPWM

Type: SignalPWM

meanCurrent

Type: Mean

meanVoltage

Type: Mean

inductor

Type: Inductor

capacitor

Type: Capacitor

loadResistor

Type: Resistor

adaptor

Type: Voltage2DutyCycle

vRef

Type: Ramp