Programming instructions

SMPS Transient Virtual
 National Instruments Corporation 12-5 Multisim Component Reference Guide
Generic PWM controller parameters:
Internal error amplifier parameters:
 To view or change a component’s model parameters:
1. Double-click on the placed component and select the Valu e tab.
2. Click Edit Model to display the Edit Model dialog box.
3. View or edit the model parameters as desired. For more information on the Edit Model
dialog box, refer to the Multisim User Guide, or the Multisim helpfile.
Parameter Description
REF Internal reference voltage
PERIOD Switching period
DUTYMAX Maximum duty cycle
IMAX Maximum voltage on (external) current
sensing resistor
VOUTHI Driver output voltage high
VOUTLO Driver output voltage low
ROUT Driver output resistor
Parameter Description
VHIGH Maximum output voltage
VLOW Minimum output voltage
ISINK Current sink capability
ISOURCE Current source capability
POLE First pole in Hertz
GAIN DC open-loop gain (default = 90 dB)
ComponentRef.book Page 5 Thursday, December 7, 2006 10:12 AM