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公开(公告)号：EP2830205A3
公开(公告)日：2015-03-18
申请号：EP14165154.7
申请日：2014-04-17
发明人： Zheng, Yanli , Tang, Zhao , Zhou, Yuanping , Lu, Hongliang
CPC分类号： H02M3/1584 , H02J3/46 , H02M1/32 , H02M3/156 , H02M2001/0009 , H02M2001/327
摘要： A switched-mode power supply in a set of parallel-connected switched-mode power supplies is operated to (1) monitor both output current and operating temperature, and (2) autotune an output voltage using two-dimensional control that employs a two-dimensional function of the output current and the operating temperature. The two-dimensional function is a sharing function whose use in each of the supplies effects a coordinated sharing of both load current and operating temperature across the set of supplies. Temperature sharing includes monitoring and controlling distribution of operating temperatures across the set of supplies to reduce undesirable temperature imbalance that can cause excessive thermal stress and reduce reliability.
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2.发明公开Power converter with modulated secondary-side synchronous rectification 审中-公开Leistungswandler mit moduliertersekundärseitigerSynchrongleichrichtung
公开(公告)号：EP2892141A1
公开(公告)日：2015-07-08
申请号：EP15150210.1
申请日：2015-01-06
发明人： Zheng, Yanli , Deng, Jia , Zhou, Yuanping
CPC分类号： H02M3/33507 , H02M3/33546 , H02M3/33592 , H02M2001/0032 , Y02B70/1475 , Y02B70/16
摘要： A power converter includes a power transformer, primary-side circuitry connected between a power source and a primary coil, and secondary-side circuitry connected between secondary coil(s) and a load to generate an output voltage and load current for a load. The secondary-side circuitry includes (i) an output inductor, (ii) one or more power transistors, and (iii) control circuitry generating switching signals to operate the power transistors as synchronous rectifiers. The control circuitry (a) senses an inductor current in the output inductor, and (b) selectively disables the switching signals to the power transistors when the inductor current is less than a threshold current value in a range between a minimally negative value and a minimally positive value, the minimally negative value just preventing diode rectification mode of operation of the power transistors, the minimally positive value just preventing negative inductor current in the output inductor.
摘要翻译： 功率转换器包括电源变压器，连接在电源和初级线圈之间的初级侧电路，以及连接在次级线圈和负载之间以产生负载的输出电压和负载电流的次级侧电路。 次级侧电路包括（i）输出电感器，（ii）一个或多个功率晶体管，以及（iii）产生开关信号以控制功率晶体管作为同步整流器的控制电路。 控制电路（a）感测输出电感器中的电感电流，（b）当电感电流小于最小负值和最小值之间的范围内的阈值电流值时，选择性地禁用功率晶体管的开关信号 正值，最小负值只是阻止功率晶体管的二极管整流操作模式，最小正值只是防止输出电感器中的负电感电流。
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3.发明公开Switch-mode power supply with temperature and current sharing 审中-公开Schaltnetzteil mit Temperatur- und Stromteilung
公开(公告)号：EP2830205A2
公开(公告)日：2015-01-28
申请号：EP14165154.7
申请日：2014-04-17
发明人： Zheng, Yanli , Tang, Zhao , Zhou, Yuanping , Lu, Hongliang
IPC分类号： H02M3/158
CPC分类号： H02M3/1584 , H02J3/46 , H02M1/32 , H02M3/156 , H02M2001/0009 , H02M2001/327
摘要： A switched-mode power supply in a set of parallel-connected switched-mode power supplies is operated to (1) monitor both output current and operating temperature, and (2) autotune an output voltage using two-dimensional control that employs a two-dimensional function of the output current and the operating temperature. The two-dimensional function is a sharing function whose use in each of the supplies effects a coordinated sharing of both load current and operating temperature across the set of supplies. Temperature sharing includes monitoring and controlling distribution of operating temperatures across the set of supplies to reduce undesirable temperature imbalance that can cause excessive thermal stress and reduce reliability.
摘要翻译： 操作一组并联开关电源中的开关电源，以（1）监视输出电流和工作温度，（2）使用二维控制自动调谐输出电压， 输出电流和工作温度的三维函数。 二维功能是一种共享功能，其在每个电源中的使用实现了整个电源组的负载电流和工作温度的协调共享。 温度共享包括监测和控制整个电源组的工作温度分布，以减少不必要的温度不平衡，从而导致过大的热应力和降低可靠性。
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