1 Introduction

As technologies development, the functionality of appliances becomes increasingly powerful, leading to a growing complexity in the electrical systems. Consequently, MCUs which possess numerous features and ample resources, play a pivotal role in this domain. In response to the market demand for safer, smarter, and more energy-efficient household appliances, a series of worldwide standards were introduced. The majority of these standards are built upon the foundation of IEC/UL 60730-1, which specifically addresses the MCU and the automatic control component in household appliances. IEC/UL 60335-1, conversely, serves as the safety standard for appliances, with the MCU section directly referencing the requirements set forth in IEC/UL 60730-1.

UL certification enjoys high visibility and recognition globally, and VDE certification is regarded as a hallmark of quality for electrical products especially in the European market. The evaluation criteria for MCU in both UL and VDE certifications align closely with those specified in IEC/UL 60730-1, albeit with higher requirements in certain aspects emphasized by VDE.

Texas Instruments (TI) boasts a diverse range of MCU product lines, and TI's C2000 MCU series stands out with abundant peripheral resources, robust central processing unit (CPU) core, and cost-effectiveness. Additionally, the series is accompanied by a comprehensive diagnostic library, which enables the fulfillment of appliances functionality requirements and UL/IEC 60730-1/60335-1 certification requirement at a low cost and within a short development cycle.