For the control subsystem of the Four-Switch Buck-Boost Converter, may I know what are the functions of vRef, v, FF, and Reset?

Hello,

I am a Matlab beginner and I want to ask what are vRef, v, FF, and Reset, and their respective functions as part of the Controller of the Four-Switch Buck Boost Converter. Attached is the simulik file of the circuit retrieved from https://www.mathworks.com/help/sps/ug/four-switch-buck-boost-converter-control.html. Thank you!

Answer 1

[Nikhil]

In the DC-DC Voltage Converter block,

• vRef is the Desired DC ouput voltage
• v is the measured DC output voltage
• FF is the feedforward term
• Reset is an External reset signal

The control signal is a calculated as :

Refer to this article for more information: DC-DC Voltage Controller