电子商务的成功实现需要信息流、资金流和物流的畅 通。本章将介绍解决电子商务资金流问题的支付技术,包括电子 支付、电子货币的基本概念,几种电子支付方式、工具和电子支 付模式

电子商务的成功实现需要信息流全和物 流的畅通。本章将介绍解决电子商务资金流 题的支付技术,包括电子支付、电子货币的基通 本概念,几种电子支付方式、工具和电子支付 模式

华中科技大学：材料科学与工程《电子封装技术工艺综合实验》实验教学讲义

8.1间接交流变流电路 8.2间接直流变流电路

l. What is power electronics? ll. The history lll. Applications V. A simple example lV. About this course

6.1 Basic principles 6.2 Some major PWM techniques in DC/AC inverters 6.3 PWM techniques with feedback control 6.4 PWM rectifiers

Supplement Practical Application Issues of Power Semiconductor Devices and d Gate Triggering Control Circuit for Thyristor Rectifiers

The concept of composite converter Composite converter Combination of two or more converters in cascaded connection Indirect ac to ac converters (AC-DC-AC converters) Composite converters ndirect dc to dc converters

7.1 Basic concepts on soft-switching 7.2 Classification of soft-switching- techniques 7.3 Typical soft-switching circuits and techniques

PEREC Classification of ac to Ac converters Same frequency Variable variable magnitude AC power frequency AC power AC power AC controllers Frequency converters