Download Technical Documents

DC-DC

  • 【HAND BOOK】Linear Regulator Basics

    【HAND BOOK】
    Linear Regulator Basics

    This is a hand book for understanding the basics of linear regulators, such as operating principles, classification, characteristics by circuit configuration, advantages and disadvantages. In addition, typical specifications of linear regulators, efficiency and thermal calculations are also explained.

  • 【HAND BOOK】Switching Regulator Basics

    【HAND BOOK】
    Switching Regulator Basics

    The basics of step-down switching regulators, including their operation and functions, are explained. Comparison with linear regulators, synchronous rectification and diode rectification, control method, auxiliary functions, etc. are also explained.

  • 【HAND BOOK】Characteristics and Evaluation Method of Switching Regulators

    【HAND BOOK】
    Characteristics and Evaluation Method of Switching Regulators

    This handbook reviews the basics of switching regulators and explains how to understand and evaluate the characteristics of switching regulators necessary for design optimization, along with reading and understanding the datasheets of switching regulator ICs.

  • 【HAND BOOK】Step-Down DC-DC Converter Examination of Losses

    【HAND BOOK】
    Step-Down DC-DC Converter Examination of Losses

    A hand book to study losses of synchronous rectifying step-down converters showing definitions of losses, relations to heat generation, loss equations for places at which losses occur in a circuit, examples of thermal calculation, relations to applications and Losses, and so on.

  • 【HAND BOOK】Switching Regulator Basics

    【HAND BOOK】
    DC-DC Buck Converter PCB Layout Basics

    This hand book shows the basics and examples of board layout for DC-DC buck converters.
    It explains the concept and precautions of PCB layout, which also greatly affects the stability of switching type DC-DC converters.

EMC

Thermal-Design

  • Thermal Design of Semiconductor Components in Electronics

    【HAND BOOK】Thermal Design of Semiconductor Components in Electronics

    Thermal design has become a new issue in the design of electronic equipment in recent years, as thermal countermeasures have been the focus of attention. Although heat has been an important consideration for some time, the requirements for electronic equipment have changed in recent years, making it necessary to review conventional thermal countermeasures. This handbook describes thermal design based on the assumption that ICs and transistors are basically used in electronic equipment.

AC-DC

SiC Power Device

  • Silicon Carbide Power Devices Understanding & Application Examples Utilizing the Merits

    Silicon Carbide Power Devices Understanding & Application Examples Utilizing the Merits

    ROHM’s seminar materials provided at the seminar venue. Basic properties of silicon carbide(SiC) which has the potential for minimizing the size of power products, reducing power consumption, and enhancing efficiency, how to use SiC diodes and SiC MOSFETs, and application examples utilizing the merits are described.

  • Basics of SiC Power Devices

    【HAND BOOK】Basics of SiC Power Devices

    This handbook explains the physical properties and advantages of SiC, the differences in characteristics and usage of SiC Schottky barrier diodes and SiC MOSFETs with a comparison to Si devices, and includes a description of full SiC modules with various advantages.

Si Power Device

  • Silicon Power Devices Application Examples Utilizing the Merits

    Silicon Power Devices Application Examples Utilizing the Merits

    ROHM’s seminar materials provided at the seminar venue. Silicon base power devices continue its evolution for the market demands of product power saving and efficiency enhancing. Basic knowledge to selection methods for diodes and MOSFETs, the latest device properties, and application examples are described.

  • Basics of Si Power Devices

    【HAND BOOK】Basics of Si Power Devices

    In this handbook, although there are so many types of power devices using Si semiconductors, the basic points are explained, focusing mainly on diodes and transistors for power supply applications. It also introduces the procedure and decision method for transistor selection when designing circuits, as well as application examples that utilize each characteristic and feature.

IGBT

  • Basics of IGBTs

    【HAND BOOK】Basics of IGBTs

    IGBTs are one of the typical power devices and are used in a wide range of applications including motor drives. This handbook provides a basic understanding of IGBTs, including their application scope and application picture based on their features, their structure and principle of operation, and how they compare with and use other power devices.

Motor Driver

Brushed DC Motor

Stepping Mortor

  • Basics of Stepping Motors and Driving Methods

    【HAND BOOK】Basics of Stepping Motors and Driving Methods

    Stepping motors are used in various devices and equipment, and there are many types of equipment that cannot function without stepping motors. This handbook presents the fundamentals of stepping motors, explaining their structure, principles of operation, characteristics, and driving methods.

Brushless Mortor

LED

  • LED Application Note

    【HAND BOOK】LED Application Note

    Summarized are matters that require attention during use, such as understanding the structure and characteristic data of LED devices, as well as electrostatic destruction, thermal resistance, and the like.

Laser Diodes

  • Laser Diodes Guide: Device

    【HAND BOOK】Laser Diodes Guide: DeviceNEW

    This is a document on the fundamentals of laser diodes.It explains the characteristics of laser light, package structure, and how to read the characteristics.Examples of laser diode driving circuits and product lineups are also presented.