FE-Logo
  • DC to AC Converters
    • How to Get AC Output From DC Input Supply?
    • What If The Load Is Not Resistive?
    • General Structure of Voltage Source Inverters
    • Need For Isolated Gate-Control Signals For The Switches
    • Classification of Voltage Source Inverters
    • Harmonic Analysis of The Load Voltage And Load Current Waveforms
    • Time Domain Analysis
    • Frequency Domain Analysis
    • Analysis Of The Single-Phase Full Bridge Inverter
    • Voltage And Current Ratings Of Inverter Switches & Applications Of Square Wave Inverter
    • Three-phase square wave VSI
    • Determination Of Load Phase-Voltages
    • Uses & Limitation of 3-Phase Square Wave Inverter
    • Nature Of Pole Voltage Waveforms Output By PWM Inverters
    • Harmonic Analysis Of Pole Voltage Waveform
    • Trade Off Between Low Order And High Order Harmonics
    • Brief Description Of Some Popular PWM Techniques
    • Two-Level Versus Three-Level PWM Inverters
    • Considerations On Switch Voltage And Current Ratings
    • Introduction to sine PWM
    • Analysis Of The Pole Voltage Waveform With A Dc Modulating Signal
    • Pole Voltage Waveform With Sinusoidal Modulating Signal
    • Modulation Index & Over-Modulation
    • A 1-Phase Sine-PWM Inverter Of H-Bridge Topology
    • Generation Of 3-Phase Sine-PWM Waveform
    • A Typical Circuit For Generation Of PWM Waveforms
    • More Output Voltage From The Same DC Bus Voltage
    • Sine + 3rd Harmonic PWM Technique
    • Space Vector PWM (SV-PWM) Technique
    • Smoothly Rotating Space Voltage Vector From Inverter
    • Algorithm For Producing Sinusoidal Output Voltages Using SV-PWM
    • Some Other Popular PWM Techniques
    • Single-phase Current Source Inverter
    • Mode I operation of Single-phase Current Source Inverter
    • Mode II operation of Single-phase Current Source Inverter
    • Three-phase Current Source Inverter
    • Commutation phases of Three Phase CSI
    • Advantages and Disadvantages of CSI
    • Load-Commutated CSI
    • Equivalent circuit of Load commutated CSI
    • Characteristics of Load commutated CSI and Output

  • Power Semiconductor Devices
    • Introduction to Power Electronics
    • Difference between Power Electronics and Linear Electronics
    • Varieties of Power semiconductor Devices
    • Classification of Power Diodes
    • Silicon Controlled Rectifier (SCR)
    • Introduction to MOSFET
    • Introduction to the IGBT
    • Base/Gate drive circuit
    • Introduction to the GTO
    • Power converter Topologies
    • Protection of Power devices and converters
    • Introduction to power semiconductor devices
    • Review of P-N diode characteristics
    • Volt-Ampere ( i-v ) characteristics of a p-n junction diode
    • Construction and characteristics of Power Diodes
    • Power Diode under Reverse Bias conditions
    • Power Diode under Forward Bias Conditions
    • Specifications related to forward bias operation of power diodes
    • Switching characteristics of Power diodes
    • Parameters defining the turn off characteristics of a Power diode
    • Introduction to power BJT
    • Basic Operating Principle of a Bipolar Junction Transistor
    • Input and Output characteristics of NPN transistor
    • Constructional Features of a Power BJT
    • Output I-V characteristics of a Power Transistor
    • Safe operating areas of a Power Transistor
    • Switching characteristics of a Power Transistor
    • Turn On characteristics of a Power Transistor
    • Turn Off Characteristics of a Power Transistor
    • Switching Trajectory and Switching Losses in a Power Transistor
    • Base Drive Design of power transistor
    • Power Darlington Transistor
    • Introduction to Thyristors and Triacs
    • Constructional Features of a Thyristor
    • Basic operating principle of a thyristor
    • Static output i-v characteristics of a thyristor
    • Thyristor Gate Characteristics
    • Thyristor ratings & Voltage ratings of a thyristor
    • Current ratings of a thyristor
    • Gate Specifications of a thyristor
    • Switching Characteristics of a Thyristor
    • Turn on Switching Characteristics of thyristor
    • Turn off Switching Characteristics of Thyristor
    • Introduction to The Triac
    • Construction and operating principle of Triac
    • Steady State Output Characteristics and Ratings of a Triac
    • Triac Switching and gate trigger circuit
    • Features of GTO
    • Constructional Features of GTO
    • Operating principle of GTO
    • Steady state output and gate characteristics of a GTO
    • Dynamic characteristics of a GTO
    • GTO gate drive circuit
    • GTO Ratings - Steady state voltage and current rating
    • GTO Ratings - Gate specification & Specifications related to the switching performance
    • Features of MOSFET
    • Constructional Features of a Power MOSFET
    • Operating principle of a MOSFET
    • Steady state output i-v characteristics of a MOSFET
    • Safe operating area of a MOSFET
    • Circuit models of a MOSFET cell
    • Switching waveforms of MOSFET
    • MOSFET Gate Drive
    • MOSFET Ratings
    • Features of IGBT
    • Constructional Features of an IGBT
    • Operating principle of an IGBT
    • Steady state characteristics of an IGBT
    • Switching characteristics of IGBT
    • Gate Drive Circuit of an IGBT
    • IGBT ratings and safe operating area
    • Soft and Hard Switching & Losses of semiconductors
    • Conduction,Blocking & Switching Losses of Semiconductors
    • Diode as semiconductor device
    • Soft switching of diode

  • AC to DC Converters
    • Introduction to Rectifiers
    • Terminologies used in Single Phase Uncontrolled Rectifier
    • Single phase uncontrolled half wave rectifier with resistive Load - Circuit Diagram & Waveforms
    • Single phase uncontrolled half wave rectifier with inductive load- Circuit Diagram & Waveforms
    • Single phase uncontrolled half wave rectifier with capacitive Load - Circuit Diagram & Wave forms
    • Split supply Single Phase Uncontrolled Full wave rectifier supplying R-L Load - Circuit Diagram & Waveforms
    • Split supply Single phase uncontrolled full wave rectifier supplying a Capacitive Load- Circuit Diagram &Waveforms
    • Single phase uncontrolled full bridge rectifier supplying R-L-E Load - circuit diagram &Waveforms
    • Single phase uncontrolled full bridge rectifier supplying R-L-E Load -Input Current waveform
    • Continuous Conduction Mode and Discontinuous conduction mode
    • Single phase fully controlled halfwave rectifier with resistive Load -Circuit Diagram & Waveforms
    • Single phase fully controlled halfwave rectifier with R-L Load - circuit Diagram & waveforms
    • Single phase fully controlled bridge converter supplying an R-L-E load- Circuit Diagram & Conduction Table
    • Operation of single phase fully controlled bridge converter in the continuous conduction mode
    • Input current and its fundamental component of a fully controlled bridge rectifier
    • Operation of a single phase fully controlled bridge rectifier in DCM
    • Inverter Mode of operation in single phase fully controlled converter
    • Operating principle of a single phase half controlled bridge converter
    • Single phase half controlled converter in the continuous conduction mode
    • Variation of average output voltageas a functionof firing angle
    • Input current waveform of half controlled converters
    • Single phase half controlled converter in the discontinuous conduction mode
    • Introduction to Three Phase Uncontrolled rectifier
    • Operating principle of three phase half wave uncontrolled rectifier
    • Operation of a 3 phase full wave uncontrolled bridge rectifier supplying an RLE load Waveforms
    • Operation of a 3 phase full wave uncontrolled bridge rectifier supplying an RLE load Circuit diagram & conduction table
    • Operation of a three phase uncontrolled bridge rectifier supplying a capacitive load Circuit diagram & Waveforms
    • Introduction to Three Phase controlled bridge converter
    • Operating principle of 3 phase fully controlled bridge converter
    • Analysis of the 3 phase fully controlled bridge converter in the rectifier mode
    • Analysis of the 3 phase fully controlled bridge converter in the inverting mode
    • Higher pulse number converters
    • Dual converters
    • Gate Drive circuit for three phase fully controlled converter
    • Operating principle of three phase half controlled converter
    • Analysis of three phase half controlled converters
    • Operation of single phase fully controlled converter with source inductance- circuit diagram & waveforms
    • Three Phase Fully Controlled Converter With Source Inductance
    • Power Factor Improvement & Extinction Angle Control
    • Symmetrical Angle Control & Pulse Width Modulation Control
    • Sinusoidal Pulse Width Modulation (SPWM) Control
    • Filters
    • Low pass (L-C) filter & Two stage Filter
    • Harmonic Reductin,Low pass (L-C) filter circuit on ac side & Active Shaping of Input (line) Current

  • DC to DC Converters
    • DC-DC Converters
    • Buck Converters (dc-dc)
    • Boost Converters (dc-dc)
    • Buck-Boost Converters (dc-dc)
    • Control Strategies of DC-DC conversion
    • Two mode operation of chopper ( Buck Converter DC-DC)
    • Maximum and Minimum Values of the Load Current
    • The Duty Ratio (k) for the Limit of Continuous Conduction & The Average Value of the Output Current
    • Classification of forced commutation methods
    • Class A, Self commutated by resonating the load & Class B, Self commutated by an L-C circuit
    • Class C, C or L-C switched by another load–carrying SCR & Class D, L-C or C switched by an auxiliary SCR
    • Class E - External pulse source for commutation & Class F, AC line commutated
    • Rate of rise of forward voltage, dv/dt
    • Three phase phase angle converter & Commutation in PAC
    • Input voltage waveform distortion & Three-phase converters
    • Commutation in DC - DC choppers
    • Introduction to regulated dc power supplies
    • Linear regulated power supply
    • SMPS versus linear power supply
    • Types of Power Supplies
    • Power supply specifications & some common types of SMPS circuits
    • Basic Topology of Fly-Back Converter
    • Principle of Operation of fly back converter
    • Circuit Equations Under Continuous-Flux Operation
    • Circuit Equations Under Discontinuous-Flux Mode & comparison
    • A Practical Fly-Back Converter
    • Introduction to Forward Type Switched Mode Power Supply
    • Principle of Operation of Forward converters
    • Modes of Circuit Operation - Forward Type Switched Mode Power Supply
    • Relation Between Input and Output Voltage of FTSMPS
    • Practical Topology of A Forward Converter Circuit
    • Selection of Transformer Turns Ratio, Filter Circuit Inductor and Capacitor
    • Analysis of CuK converter
    • Expression for average output voltage and inductor currents
    • Current ripple and voltage ripple calculations
    • The SEPIC Converter
    • Introduction to transformers in switched mode
    • Governing Equations for Utility Transformer
    • Transformer with Square-Wave Voltage and Bipolar Flux
    • Transformer with Unipolar Flux
    • Design of Inductor-Transformer

  • AC to AC Voltage Converter
    • Operation of an AC-AC converter with resistive load
    • Power Factor of an AC-AC converter with resistive load
    • Operation of an AC-AC converter with inductive load
    • PAC as a static switch & AC Chopper
    • Three-phase, Three-wire AC Regulator with Balanced Resistive Load
    • Three-phase Delta-connected AC Regulator with Balanced Resistive Load
    • Comparison of the Different Circuits used for Three-phase AC Regulators
    • Rating of the Parameters used in Three-phase AC Regulators
    • Phase Angle Controller Circuit for Triac-based Single-phase AC Regulator
    • TRIAC as PAC
    • DIAC as PAC
    • Basic Principle of Operation of cyclo-converters
    • Single-phase to Single-phase Cyclo-converter Resistive (R) Load
    • Discontinuous load current of single phase to single phase cyclo converter Inductive Load
    • Continuous load current of single phase to single phase cyclo converter Inductive Load
    • Advantages & Disadvantages of Cyclo-converter
    • DC Link Converter
    • Three-phase to Single-phase Cyclo-converter
    • Mode of Operation of a Three phase to Single Phase Cycloconverter
    • Cyclo-converter, using two three-phase half-wave converters
    • Three-phase to Three-phase Cyclo-converter
    • Analysis of the Cyclo-converter Output Waveform
    • Control Circuit & Synchronising Circuit for Cyclo-converters
    • Reference Voltage Sources
    • Logic and Triggering Circuit
    • Circuit for Converter Group Selection

Branch : Electrical and Electronics Engineering
Subject : Power Electronics
Unit : DC to DC Converters

Expression for average output voltage and inductor currents


CuK converter:

Fig: Equivalent Circuit of a ˆCuK converter during different conduction modes. (a) 0 < t ≤ DT (b) DT < t ≤ T

 

Expression for Average Output Voltage:

 

Expression for average Inductor current:

 

Questions of this topic


  • Derive the expression for the average output voltage of a CuK converter.

    Answer this
  • Derive the average Inductor current of a CuK converter.

    Answer this
Ask your question

<
>