## Switching Power Supplies A - ZThe design of Switching Power Supplies has become one of the most crucial aspects of power electronics, particularly in the explosive market for portable devices. Unfortunately, this seemingly simple mechanism is actually one of the most complex and under-estimated processes in Power Electronics. Switching power conversion involves several engineering disciplines: Semiconductor Physics, Thermal Management, Control Loop theory, Magnetics etc, and all these come into play eventually, in ways hard for non-experts to grasp. This book grows out of decades of the author’s experience designing commercial power supplies. Although his formal education was in physics, he learned the hard way what it took to succeed in designing power supplies for companies like Siemens and National Semiconductor. His passion for power supplies and his empathy for the practicing or aspiring power conversion engineer is evident on every page. * The most comprehensive study available of the theoretical and practical aspects of controlling and measuring Electromagnetic Interference in switching power supplies, including input filter instability considerations. * Step-by-step and iterative approach for calculating high-frequency losses in forward converter transformers, including Proximity losses based on Dowell's equations. * Thorough, yet uniquely simple design flow-chart for building DC-DC converters and their magnetic components under typical wide-input supply conditions * Step-by-step, solved examples for stabilizing control loops of all three major topologies, using either transconductance or conventional operational amplifiers, and either current-mode or voltage-mode control. |

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#### Switching Power Supplies a to z

User Review - davidc3 - Overstock.comThis book is pure physics and math written for a Power Supply designer. College Grad level. Not written for electronic repair personnel. Way above my head and with Four years of electronics training and thirty years of repair . Read full review

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I must start reading it

### Contents

CHAPTER 2 DCDC Converter Design and Magnetics | 61 |

CHAPTER 3 Offline Converter Design and Magnetics | 127 |

CHAPTER 4 The Topology FAQ | 177 |

CHAPTER 5 Conduction and Switching Losses | 203 |

CHAPTER 6 Printed Circuit Board Layout | 237 |

CHAPTER 7 Feedback Loop Analysis and Stability | 249 |

CHAPTER 8 EMI from the Ground upMaxwell to CISPR | 323 |

CHAPTER 9 Measurements and Limits of Conducted EMI | 339 |

CHAPTER 11 DM and CM Noise in Switching Power Supplies | 373 |

CHAPTER 12 Fixing EMI across the Board | 387 |

CHAPTER 13 Input Capacitor and Stability Considerations in EMI Filters | 403 |

CHAPTER 14 The Math behind the Electromagnetic Puzzle | 417 |

APPENDIX 1 Focusing on Some Realworld Issues | 437 |

APPENDIX 2 Reference Design Table | 485 |

References | 489 |

493 | |

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### Common terms and phrases

actually application average inductor current B-field basic boost and buck-boost buck calculate capacitance circuit CISPR CM choke CM noise components copper core loss crossover frequency current limit current ripple ratio current waveform curve dc-dc converter decrease dissipation DMAX duty cycle effect energy equal equation example fact feedback filter flyback flyback transformer forward converter high-frequency impedance increase input voltage leakage inductance linear regulator LISN load current loop magnetic maximum mosfet Note number of turns off-line on-time op-amp open-loop gain output capacitor output voltage parasitic peak current phase plot pole power conversion quasi-peak rail ramp regulator resistance resistor saturation shown in Figure slope switch current switcher switching frequency switching loss switching node switching power temperature topology transfer function transformer turn-off turn-on typical usually Vdrive voltage spike voltseconds waveform wire worst-case Y-caps