Bridge

Achieve higher effiency and improved power density with our half bridge and full bridge controllers

 Solutions for 50W to 2kW power supplies

Our broad portfolio of high performance analog controllers supporting half-bridge and full bridge topologies for power supplies ranging from 50W all the way to 2-kW. Our robust features like programmable frequency, zero-voltage switching, soft start, integrated gate drivers, and others allow for increased design flexibiilty while also simplifying system design, delivering improved efficiency and increasing power density

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Phase-shifted bridge controllers

Featured bridge controllers

Design & development resources

参考设计
汽车类 400W、48V 电池输入、12V 输出电源参考设计
此参考设计是一种 400W 相移全桥汽车转换器,可以 48V 汽车电池输入产生 12V 输出。这种增强型相移全桥控制器实施了可编程延迟,可确保在各种操作条件下实现零电压开关 (ZVS)。这种输出实施了同步整流,可实现快速瞬态响应和高环路带宽。该系统在无负载且待机功耗小于 100mW 的情况下可提供 12V 稳定电压。通过变压器可实现伪隔离,以防 48V 电池发生次级侧短路。半桥栅极驱动器可承受最大 120V 的直流升压电压。
参考设计
54VDC 输入,12V、42A 输出半桥参考设计

这款 12V、42A 输出半桥参考设计适用于有线网络园区和分支交换机中的总线转换器。该设计具有高效率和各种故障保护功能(过流和短路)。该设计对使用 3kVRMS 基本和功能隔离栅驱动器 UCC21220D、UCC21220AD、UCC21222D 和使用 5.7kRMS 增强型隔离栅驱动器 UCC21540D、UCC21540DWK 及 UCC21541DW 的效率进行了比较。

参考设计
满载效率为 92% 的 2kW 工业交流/直流电池充电器参考设计
该参考设计是一个可以设置为标准电源或电池充电器的模块。输出电压范围为 0V 至 32V,最大电流为 62.5A。它由四块板、一个升压 PFC、一个相移全桥、一个小子板(托管微控制器)以及具有三个 LED 和四个按钮的显示板组成。输入电压范围是通用的:90VAC 至 264VAC,输入电流限制为 10A,这可将输入功率限制在 200VAC 以下。微控制器将电源连接到操作员并控制所有功能,包括启用和关闭 PFC 和直流/直流功率级,设置不同的输出电压电平和充电电流限制。

技术资源

应用手册
应用手册
UCC28950/UCC28951 600W 相移全桥应用手册 (Rev. D)
Learn about practical design considerations on this 600-W, phase-shifted, full-bridge converter using the UCC28950/UCC28951 PSFB controllers.
document-pdfAcrobat PDF
视频系列
视频系列
Phase shifted full bridge (PSFB) vs full bridge LLC (FB-LLC) for high power DC/DC conversion
Go in-depth discussing the pros and cons of both the PSFB and FB-LLC topologies, comparing the basic problems between the PSFB and FB-LLC and give ideas on how to choose between the two given a certain application.
应用手册
应用手册
Phase Shifted Full Bridge, Zero Voltage Transition Design Considerations (Rev. A)
Learn more about practical design considerations for high frequency, high power design using phase shifted resonant PWN control technique.
document-pdfAcrobat PDF