Konverter DC-DCPekik Argo Dahono
PenerapanCatu daya switchingPengendalian motor dcRegulator tegangan dc
Regulator Tegangan
Regulator tegangan
DC Power SuppliesLinear RegulatorSwitching Regulator
Jenis Konverter DC-DCStep-down (Buck)Step-up (Boost)Up-Down (Buck-Boost)Cuk
KlasifikasiBerdasarkan jumlah fasaSatu-fasaMultifasa2) Jumlah kuadranSatu kuadranDua kuadranEmpat kuadran
Step-Down (Buck) Converter
Step-Down Converter (Continuous Conduction Mode) ON stateOFF State
Step-Down Converter (Continuous Conduction Mode)
Step-Down Converter (Continuous Conduction Mode)
Critically Conduction Mode
Discontinuous Conduction Mode
Step-Up (Boost) Converter
Step-Up Converter (Continuous Conduction Mode)
Step-Up Converter (Continuous Conduction Mode)
Critically Conduction Mode
Discontinuous Conduction Mode
Buck-Boost Converter
Buck-Boost Converter
Buck-Boost ConverterContinuous Conduction Mode
Cuk Converter
Cuk Converter
Multiphase Choppers
Two-Phase Chopper
Multiphase ChopperThe effective switching frequency is the number of phase times the carrier frequency.At several values of duty cycle, the ripple is zero.The topology is useful for low-voltage high-current applications.The flywheel diodes are usually implemented by using synchronous rectifiers.
Multi-quadrant Chopper
Two-Quadrant Chopper
Four-Quadrant Chopper
Indirect DC-DC ConvertersFlyback converterForward converterPushpull converterHalf-Bridge converterFull-bridge converter
The needs of galvanic isolationSafety and noise requirements dictate the use of galvanic isolation.Galvanic isolation is implemented by using a transformer.The frequency of operation must be very high to reduce the size of transformer.
Flyback converter
Flyback Converter
Forward ConverterSimpleLess ripple than flyback converterLess stresses across switching devicesUnipolar fluxSuitable for medium power (< 500 W)
Forward Converter
Forward Converter
Forward Converter
Push-Pull and Half-Bridge Converters
Push-Pull and Half-Bridge ConvertersBipolar fluxModerate stress across switching devicesSuitable for medium power (< 1 kW)Sensitive to signal unbalances
Full-Bridge Converter
Full-Bridge ConverterBipolar fluxMinimum stresses across switching devicesSuitable for large power (< 10 kW)Can be operated under soft-switched mode
Soft-Switching Mode
Load
d
E
1
S
1
D
2
S
2
D
3
S
3
D
4
S
4
D
u
v
Duality
Duality
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