ProblemStep-upconverters7In a step-up converter, consider all components to beideal. Let Vabe 8~16V, V.=24V (regulated), f,=20kHz, andC=470uF. Calculate the minimum inductance Lmin that willkeep the converter operating ina continuous-conductionmode if P.>=5W.8ln a step-up converter, V=12V, V。=24V, I.=0.5AL=150μH, C=470μF, and f.=20kHz.Calculate △V(peak-peak).9ln Problem 7-8, Calculate the rms value of the ripple inthe diode current (which also flows through the capacitor).11
Problem 11 Step-up converters 7In a step-up converter, consider all components to be ideal. Let Vd be 8~16V, Vo=24V (regulated), fs=20kHz, and C=470µF. Calculate the minimum inductance Lmin that will keep the converter operating in a continuous-conduction mode if Po>=5W. 8In a step-up converter, Vd =12V, Vo=24V, Io=0.5A, L=150µH, C=470µF, and fs=20kHz. Calculate ΔVo (peakpeak). 9In Problem 7-8, Calculate the rms value of the ripple in the diode current (which also flows through the capacitor)
ProblemBuck-boostconverters7-12 In a buck-boost converter. consider all components tobe ideal. Let V.be 8~40V, V。=15V (regulated), f,=20kHz,and C=47OμF. Calculate the Lmin that will keep the converteroperating in a continuous-conduction mode if P.>=2W.Cukconverter7-17 In the circuit of Example 7-3, calculate the rmscurrent flowing through the capacitor C1:12
Problem 12 Buck-boost converters 7-12 In a buck-boost converter, consider all components to be ideal. Let Vd be 8~40V, Vo=15V (regulated), fs=20kHz, and C=470µF. Calculate the Lmin that will keep the converter operating in a continuous-conduction mode if Po>=2W. Cuk converter 7-17 In the circuit of Example 7-3, calculate the rms current flowing through the capacitor C1
ProblemFull-bridgeconverters2oPlot instantanuous power output p.(t) and theaverage power Po, corresponding to i。in Figs. 7-28e and7-28f.21Repeat Problem 7-20 for Figs. 7-29e and 7-29f.14
14 Problem Full-bridge converters 20Plot instantanuous power output po (t) and the average power Po , corresponding to io in Figs. 7-28e and 7-28f. 21 Repeat Problem 7-20 for Figs. 7-29e and 7-29f
3Switching-ModeDC-ACInverters1Introduction2Basic Concepts of Switching-ModeInverter3Single-PhaseInverters8-4 Three-Phase Inverters5Effectof Blank Timeon Output VoltageinPWMInverters6Other Inverter Switching Schemes
3 Switching-Mode DC-AC Inverters 1 Introduction 2 Basic Concepts of Switching-Mode Inverter 3Single –Phase Inverters 8-4 Three-Phase Inverters 5 Effect of Blank Time on Output Voltage in PWM Inverters 6 Other Inverter Switching Schemes
本章知识点：1、掌握无源逆变电路的概念、原理及分类2、掌握单相电压型逆变电路工作原理、特点；3、掌握三相电压型逆变电路工作原理、特点；4、掌握逆变电路的脉宽调制(PWM)技术
本章知识点： 1、掌握无源逆变电路的概念、原理及分类； 2、掌握单相电压型逆变电路工作原理、特点； 3、掌握三相电压型逆变电路工作原理、特点； 4、掌握逆变电路的脉宽调制(PWM)技术