Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

IGBT vs MOSFET selection for DC-DC Converter application

Status
Not open for further replies.

pavintm

Newbie level 2
Joined
Jun 19, 2017
Messages
2
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
18
Which power semiconductor is preferred for the given application? MOSFET or IGBT?

Bidirectional DC DC converter for hybrid storage devices like battery and supercapacitor with Solar harvesters for motor drive application with following specifications:

Battery parameters: 24VDC
Output Parameters: 1kW, 48VDC with maximum current drawn is 25A.

Switching frequency is not decided. What all things to consider in selecting the switching frequency?
 

Switching frequency is an important parameters for selecting the power switches whether MOSFET or IGBT.

IGBT's are preferred when high current and low frequency, IGBT can perform well in low frequency range (up to 30KHz).
MOSFET's are work well in high frequency operation with low current(up to 100A)
 

Switching frequency is an important parameters for selecting the power switches whether MOSFET or IGBT.

IGBT's are preferred when high current and low frequency, IGBT can perform well in low frequency range (up to 30KHz).
MOSFET's are work well in high frequency operation with low current(up to 100A)


Thanks. But what are the necessary things to consider in selecting the frequency? Except sizes of the passive elements and switching loss, which frequency is suitable for above said application?
 

Hi,

In my eyes IGBTs often are the better choice for high voltage. Above some 100V.

I tend to Mosfets for your application.

Klaus
 
Definitely MOSFETs for your specs. IGBTs are only really competitive in the 300V+ range.
 
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top