ABB RET670 保护装置是一款具有无损过零检测功能的保护装置，由Power Integrations公司推出。它采用紧凑型SO-8C封装，适用于输出电流高达575 mA的非隔离降压和降压-升压电源，并为通用输入隔离反激式设计提供高达12 W的输出。RET670保护装置在一个小封装中集成了离线功率转换、无损过零检测和可选的X电容放电功能。

这款保护装置能够在线路和负载上实现3%的调节，在外部偏置下空载功耗小于30 mW，IC待机电流小于100 A。与分立设计相比，链接开关-TNZ IC可以将组件数量减少40%或更多。此外，该IC能够提供高轻载效率，从而支持更多系统特性，同时满足严格的待机规定，如符合CE认证等。

ABB RET670 控制器具有以下优势：

1. 高效节能：RET670 是一款高效的开关电源控制器，它能够优化电源的转换效率，从而降低能源消耗和设备发热量，提高设备可靠性和使用寿命。
2. 高精度控制：RET670 控制器具有高精度的电压和电流控制能力，能够对电源输出进行精确的调节和控制，满足各种高精度的电源应用需求。
3. 多重保护功能：RET670 控制器具备过压、欠压、过流等多重保护功能，能够保证电源设备和连接电路的安全稳定运行，有效防止电源故障对设备和电路的损坏。
4. 宽电压输入范围：RET670 控制器支持较宽的电压输入范围，能够在不同的输入电压条件下稳定运行，适应不同的电源环境。
5. 灵活的接口设计：RET670 控制器采用灵活的接口设计，支持多种不同的通信协议和接口方式，能够方便地与其他设备进行连接和通信，提高了控制器的可扩展性和适应性。
6. 高可靠性设计：RET670 控制器采用高品质的电子元件和材料进行制造，并经过严格的品质控制和测试，具有较高的可靠性和稳定性。同时，其还具备较低的故障率和维护成本，提高了电源系统的整体可靠性和经济性。
7. 人性化操作界面：RET670 控制器具备简单易用的操作界面和友好的人机界面，方便用户进行参数设置、操作和维护。同时，其还支持多种语言显示和个性化设置，满足不同用户的需求。
8. 全面的技术支持和完善的服务保障：ABB作为知名的电力电子设备制造商，提供全面的技术支持和完善的服务保障，能够为使用 RET670 控制器的用户提供全方位的技术支持和售后服务。

总之，ABB RET670 控制器是一款高效、高精度、多重保护、宽电压输入范围、灵活接口设计、高可靠、人性化操作界面、全面的技术支持和完善的服务保障的开关电源控制器，适用于各种需要高效稳定电源供应的设备中。

ABB RET670 protection device is a protection device with non-destructive zero crossing detection function, launched by Power Integrations. It adopts a compact SO-8C package, suitable for non isolated buck and buck boost power supplies with output currents up to 575 mA, and provides up to 12 W output for general-purpose input isolated flyback designs. The RET670 protection device integrates offline power conversion, non-destructive zero crossing detection, and optional X-capacitor discharge function in a small package.

This protective device can achieve 3% adjustment on the line and load, with no-load power consumption less than 30 mW and IC standby current less than 100 A under external bias. Compared to discrete designs, the Link Switch TNZ IC can reduce the number of components by 40% or more. In addition, this IC can provide high light load efficiency, thereby supporting more system characteristics while meeting strict standby regulations, such as compliance with CE certification.

The ABB RET670 controller has the following advantages:

Efficient and energy-saving: RET670 is an efficient switch mode power supply controller that can optimize the conversion efficiency of the power supply, thereby reducing energy consumption and equipment heat generation, improving equipment reliability and service life.

High precision control: The RET670 controller has high-precision voltage and current control capabilities, which can accurately adjust and control the power output, meeting various high-precision power application requirements.

Multiple protection functions: The RET670 controller has multiple protection functions such as overvoltage, undervoltage, overcurrent, etc., which can ensure the safe and stable operation of power equipment and connecting circuits, effectively preventing power failure from damaging equipment and circuits.

Wide voltage input range: The RET670 controller supports a wide voltage input range and can operate stably under different input voltage conditions, adapting to different power supply environments.

Flexible interface design: The RET670 controller adopts a flexible interface design, supporting various communication protocols and interface methods, which can easily connect and communicate with other devices, improving the scalability and adaptability of the controller.

High reliability design: The RET670 controller is manufactured with high-quality electronic components and materials, and has undergone strict quality control and testing, with high reliability and stability. At the same time, it also has a lower failure rate and maintenance cost, improving the overall reliability and economy of the power system.

Humanized operation interface: The RET670 controller has a simple and user-friendly operation interface and a user-friendly human-machine interface, making it convenient for users to set parameters, operate and maintain. At the same time, it also supports multiple language displays and personalized settings to meet the needs of different users.

Comprehensive technical support and comprehensive service guarantee: As a well-known power electronic equipment manufacturer, ABB provides comprehensive technical support and comprehensive service guarantee, and can provide comprehensive technical support and after-sales service for users using RET670 controllers.

In summary, ABB RET670 controller is an efficient, high-precision, multi protection, wide voltage input range, flexible interface design, high reliability, user-friendly operation interface, comprehensive technical support, and comprehensive service guarantee switch power supply controller, suitable for various devices that require efficient and stable power supply.