Power Management for Electronic Systems (EE5103) | Electronic Systems | IIT Madras

Module 1

Introduction to power management: What is power management, application, need of power management, different parts of a power management system, discrete vs integrated power management.

Module 2

Voltage Regulator: What is a voltage regulator, why we need a regulator, types of voltage regulator – Linear and Switching, isolated and non-isolated regulator, choosing between types of regulators, features and performance metrics of voltage regulators, examples of voltage regulators available from different companies, how to select the right voltage regulator for an electronic system.

Module 3

Linear Regulators and LDOs: Basic concept of linear regulator, Devices used for pass element, Performance parameters, characteristic of an error amplifier, stability analysis and compensation techniques, overcurrent and short circuit protection, Sources of error/offset in LDO, error correction techniques.

Module 4

Switching Regulators: Basic operation, switching vs linear regulator, types of switching regulators, Losses in switching regulators, Volt-second balance, Control techniques (voltage mode, current mode, hysteretic control), voltage and current ripples, CCM and DCM operation, PSM and PFM operation, types of PWM – trailing, leading and dual edge modulation.

Module 5

Designing a buck converter: Specifications of a buck converter, selecting switching frequency, choosing L and C, selecting power FETs, gate driver circuits, board level component placement and layout, EMI considerations

Module 6

Power Management for Mobile System: Power management system of a mobile phone, selecting type of regulator, power distribution in a mobile phone, power sequencing, UVLO and Power ON reset, temperature and current derating, power management for mobile displays, LED driver for display backlight, controlling display brightness.

Module 7

Battery Chargers and Battery Management: Classifications of batteries, Li-ion battery profile, battery model, different stages of battery charging, sensing battery current, compensating battery ESR, fast charging techniques, charging parallel and series batteries, state of charge estimation, voltage vs current mode battery management, battery insertion and removal detection.

Module 8

Power Management for IoT Application: Power requirement of IoT sensors, powering sensors from energy harvesting, source of energy (solar, thermal, vibration, RF etc.), application of energy harvesting, charge storage devices (super capacitors, batteries etc.), charging system for energy harvesting, maximum power point tracking, ultra-low power voltage regulators for energy harvesting, system level power reduction techniques.

Power Management for Electronic Systems

Course Structure & Syllabus

Prescribed Books & References