Power IntegrationsInnoSwitch3－MX40W多输出电源参考设计DER－636

Power Integrations公司的InnoSwitch3－MX是最新的反激隔离开关系列,组合了初级FET,初级控制器,用于同步整流的次级控制器,以及高速通信技术,不需要光耦合器;而InnoSwitch3-MX接收来自InnoMux集成电路的控制信息,能单独测量每个输出的负荷要求,指导InnoSwitch3-MX开关为每个输出提供正确的输出量,以维持电流或电压的精确管理,这就消除了以前常见的负载和交叉调节.因此,InnoSwitch3-MX的架构集成了初级和次级控制器,大大地简化多个输出电源开发和制造,特别是那些紧凑外壳和高效率要求的多输出电源.主要用在满足能量之星8和CEC的监视器和电视机(TV).本文介绍了InnoSwitch3-MX产品亮点,初级框图和次级框图,以及40W多输出电源4个LED驱动器的参考设计DER436主要指标,复用结构的简化电路,以及参考设计DER436电路图,连接图与变压器电路图,材料清单,和PCB布局图.
The InnoSwitch3-MX dramatically simplifies the development andmanufacturing of multiple output power supplies, particularly those incompact enclosures or with high efficiency requirements. TheInnoSwitch3-MX architecture is revolutionary in that the devicesincorporate both primary and secondary controllers, with senseelements and a safety-rated feedback mechanism into a single IC.
Close component proximity and innovative use of the integratedcommunication link, FluxLink, permit accurate control of a secondarysidesynchronous rectification MOSFET with Quasi-Resonant switchingof primary integrated high-voltage switch to maintain high efficiencyacross the entire load range.
This version of InnoSwitch3 is intended to be used with InnoMux formultiple output, single-stage power supplies for monitors and TVs.This enables very high system efficiency on a small PCB foot print.
The InnoSwitch3-MX combines a high-voltage power switch, alongwith both primary-side and secondary-side controllers in one device.
The InnoSwitch3-MX is intended to be paired with an InnoMuxcontroller.The InnoSwitch3-MX architecture incorporates a novel inductivecoupling feedback scheme using the package leadframe and bondwires to provide a safe, reliable, and low-cost means to accuratelycommunicate ...