LLC转换器是DC/DC转换器,并且在这种情况下使用前端半桥。半桥的交流侧通过串联的谐振电感器和电容器连接到高频变压器的初级侧。变压器的磁化电感与电感器和电容器一起形成LLC谐振回路。变压器的次级侧连接到全波二极管整流器,以将AC变压器输出转换为高纹波DC电压,然后对其进行滤波以提供低纹波DC电压输出。 2.2 压控振荡...
一种包括至少两个变压器(T1,T2)的谐振LLC功率转换器,其中该至少两个变压器中的初级绕组(LM1,LM2)串联耦合. Comprising at least two transformers (T1, T2) of the LLC resonant power converter, wherein the at least two transformer primary windings (LM1, LM2) coupled in series. 该至少两个变压器(...
Half-bridge and LLC controller 谐振模式电源是SMPS电路的衍生类型。得益于零电压或零电流开关技术(也称为软开关技术),开关的损耗显着降低。而非谐振模式SMPS电路的开关则受到硬切换的制约。因此,谐振模式电源更有利于实现更高的效率。LLC HB谐振器工作于ZVS模式,从而降低了开关损耗并使转换器能够在更高的开关频率...
LLC HB谐振器工作于ZVS模式,从而降低了开关损耗并使转换器能够在更高的开关频率下工作。此外,这种方案可以在高输入电压下实现对转换器的进一步优化。这种拓扑结构能够消除次级滤波电感,采用更好的整流二极管,降低次级传导损耗。 该转换器利用变压器的磁化电感,采用磁性集成的理念,使所有磁性元件都可以内置在一个...
在谐振变换器中,两种谐振变换器分别为串联谐振变换器series resonant converter (SRC),并联谐振变换器parallel resonant converter(PRC)。这两种变换器都通过改变开关频率调节输出,调节开关频率,使得谐振电路阻抗变化。因为串联谐振相当于输入和负载的电压分压,SRC的DC增益总小于1。轻载下,与谐振电路阻抗相比负载阻抗很大,...
https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1077365/ucd3138a-halfbridge-llc-converter-firmware-output-voltage-limit 部件号:UCD3138A 在“线程:”,“测试”中讨论的其它部件 您好, 我使用 UCD3138ACCEVM149 (控制卡)和 UCD3138ALLCE...
Half-bridge LLC resonant converter with a synchronous rectification function The invention discloses a half-bridge LLC resonant converter with a synchronous rectification function that includes a first switch; a second switch; a first transformer; a first synchronous rectifier; a second synchronous rectif...
AN2450 Application note LLC resonant half-bridge converter design guideline Silvio De Simone Introduction The growing popularity of the LLC resonant converter in its half-bridge implementation (see Figure 1 on page 4) is due to its high-efficiency, low level of EMI emissions, and its ab...
半桥llc谐振转换器解决方案HalfbridgeLLCresonantconvertersolution 系统标签: resonantllcconverterbridgehalf半桥 半桥llc谐振转换器解决方案(HalfbridgeLLCresonantconverter solution) ThedesignconsiderationsforthehalfbridgeLLCresonant converterandtheAMorimisemiconductorsolutions,2008-4-15, 15:08:55,power,onlinenetwork,and...
The Isolated Half-Bridge Topology Half-bridge DC-DC converter circuits have a few common elements that appear in the system that implement driving, rectification, filtering, EMI reduction, and control: Coupling element:This refers broadly to a pulse/power transformer, or anoptocoupler. The choice ...