Topology Selection

When designing a power supply circuit, it is necessary to select a circuit configuration (topology) that matches the required specifications, since input voltage, output voltage, power, isolation, etc. vary depending on the application. In addition, the optimum component selection differs depending on the topology. If the wrong components are selected, the required specifications will not be met and the circuit design will have to be rework. The following table shows the most suitable devices for various topologies, which can be used as a reference for selecting the topology and selecting the most suitable components for the topology to reduce the design man-hours.

Applications

Function Topology name Vin Vo Applications
Industry
Power Converter
(SMPS)
PV
Inverter
UPS On Board
Charger
for xEV
xEV Charger
Station
Indutry
Motor Drive
AC/DC Boost PFC 85 - 265VAC 400VDC       Coming Soon
Interleaved Boost PFC 85 - 265VAC 400VDC    
Totem-Pole Bridgeless PFC
(Diode Rectification)
85 - 265VAC 400VDC    
Totem-Pole Bridgeless PFC
(Synchronous FETs)
85 - 265VAC 400VDC    
3-phase 2-level full bridge PFC 3phase
170 - 480VAC
800VDC    
3-phase vienna PFC 3phase
170 - 480VAC
800VDC    
3-phase NPC type-T PFC 3phase
170 - 480VAC
800VDC        
DC/DC Boost Converter 150 - 350VDC 400VDC        
Bidirectional Buck-Boost Converter 400VDC 30 - 100VDC      
Dual Buck-Boost Converter 600 - 1500VDC 800VDC      
Bipolar Boost Converter 400 - 600VDC 800VDC      
3-Level Flying Capitor Booster 400VDC 400 - 600VDC        
LLC Converter
(Half Bridge, Diode Bridge)
400VDC 400VDC        
LLC Converter
(Full Bridge, Diode Rectification)
400VDC 12 - 48VDC        
LLC Converter
(Full Bridge, Synchronous FETs)
400VDC 12 - 48VDC        
LLC Converter
(Full Bridge, Diode Bridge)
400VDC 400VDC      
Phase Shifted Full Bridge Converte
(Diode Rectification)
400VDC 12 - 48VDC        
Phase-Shifted Full Bridge Converter
(Synchronous FETs)
400VDC 12 - 48VDC        
Dual Active Bridge
(DAB)
400VDC 400VDC  
DC/AC Full Bridge Inverter
(1-phase application)
400VDC 85-265VAC      
Heric Inverter
(1-phase application)
400VDC 85-265VAC      
3-Level NPC TYPE-I Inverter
(3-phase application)
800VDC 3phase
170 - 480VAC
     
3-Level NPC TYPE-T Inverter
(3phase application)
800VDC 3phase
170 - 480VAC
     
2-Level full bridge Inverter
(3-phase application)
800VDC 3phase
170 - 480VAC