SIRIO脉冲变压器112系列介绍
111, 112, 113, 114 Families Features
Different sizes drive and pulse transformers based on toroidal cores. Characteristics of these components are quite different, because several magnetic core materials can be used and different windings distribution can be chosen. Ferrite core is the cheapest choice for high frequency applications. Alternatively, more expensive magnetic materials are available, based on metallic lamination, even amorphous, or nanocrystalline materials. Those laminated materials have much higher values of saturation flux density (compared to ferrite materials), that allows to reduce dimensions especially for applications switching at low frequency values (some tens of kHz), and a much more stable behaviour with temperature, so they are preferred in case of critical environment conditions. From the construction's point of view, there are many different ways to arrange windings, but we can consider basically two main kinds of winding layout with complementary characteristics, the multifilar style and the separated sectors style. The aim of the multifilar winding process is to achieve low leakage inductance values, in order to get very short rise times but, on the other hand, the coupling capacity gets very high values; it is used mainly for low working voltage applications as the isolation is guaranteed entirely by the isolating covering material of the wires. You can get very similar characteristics, even by placing the windings one above the other and not all together in parallel. The separated sectors winding style is preferable for high working voltage applications, as the isolation is guaranteed not only by the wires but also by other insulating materials between the windings. This style is characterized by low coupling capacity and high leakage inductance. They are tipically used in IGBTs, power MOSFETs and BJTs high frequency firing or in lower frequency applications with Thyristors and Triacs. Standard versions are available with one or two secondary windings.
Toroidal components generally have very good technical features but, on the other hand, the production process is by nature a one-by-one building style, that cannot be made automatically, and this is the reason why the final cost is much higher if compared with the components based on linear winding process.
111, 112, 113, 114 系列特色
基于环形磁芯的不同尺寸驱动和脉冲变压器。这些组件的特性有很大不同，因为可以使用多种磁芯材料，并且可以选择不同的绕组分布。铁氧体磁芯是高频应用中最便宜的选择。或者，更昂贵的磁性材料是可用的，基于金属层压，甚至是非晶或纳米晶体材料。这些层压材料具有更高的饱和磁通密度值（与铁氧体材料相比），可以减小尺寸，尤其是在低频值（几十 kHz）下切换的应用中，并且随着温度的变化更加稳定，因此它们是在关键环境条件下首选。从结构上看，绕组的排列方式有很多种，但基本上可以考虑两种具有互补特点的主要绕组布局，即多股式和扇形式。多股绕组工艺的目的是实现低漏感值，以获得非常短的上升时间，但另一方面，耦合电容值非常高；它主要用于低工作电压应用，因为绝缘完全由电线的绝缘覆盖材料保证。您可以获得非常相似的特性，即使将绕组放置在另一个之上而不是全部并联在一起也是如此。对于高工作电压应用，分离扇区绕组样式更可取，因为绝缘不仅由电线保证，而且由绕组之间的其他绝缘材料保证。这种风格的特点是低耦合容量和高漏感。它们通常用于 IGBT、功率 MOSFET 和 BJT 高频触发或与晶闸管和三端双向可控硅开关的低频应用。标准版本可提供一个或两个次级绕组。
环形组件通常具有非常好的技术特性，但另一方面，生产过程本质上是一个接一个的建筑风格，不能自动制造，这就是为什么如果比较最终成本要高得多的原因与基于线性缠绕工艺的组件。
SIRIO脉冲变压器TI系列其他常用型号：
SIRIO TI 112010
SIRIO TI 112020
SIRIO TI 112045
SIRIO TI 112130
SIRIO TI 112140
SIRIO Pulse Transformers NEW + ORIGINAL+ ONE YEAR WARRANTY
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SIRIO脉冲变压器112系列介绍
