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High quality EMI/EMC
Filter products

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VIP's customer service covers the entire value chain. Our capabilities cover the full range of work in and around filter-based. We support the innovative products of the future, from development to mass production and more. And always work closely with our customers.
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我们所做的

为各种市场和行业提供滤波器解决方案

我们为医疗技术、制药、消费电子、电信、汽车、卫生和其他领域的客户提供有效解决方案,同时为了有效的服务客户,我们设立EMC整改服务部门,为客户提供有效的EMC整改方案。
了解全部方案
2022/04/01
What is a magnetic ring? How to use the magnetic ring?

Absorption magnetic ring, also known as ferrite magnetic ring, referred to as magnetic ring. It is a commonly used anti-interference component in electronic circuits, which has a good suppression effect on high-frequency noise.

2022/03/30
Correct use of power filters

During the test, we often encountered such a situation: although the design engineer connected a power filter to the power line of the equipment, the equipment still could not pass the "conducted disturbance voltage emission" test, and the engineer suspected that the filtering effect of the filter was not good. Constantly replace the filter, still can not get the desired effect.

2022/03/29
What is the relationship between the color of the magnetic ring and the material?

Most of the magnetic rings need to be painted to facilitate the distinction. Generally, the iron powder core is distinguished by two colors.

2021/05/17
Types and selection of inverter filters

According to the application of the inverter filter, it can be divided into the following types:

2021/04/29
Selection and use of filters

Any device capable of processing a signal can be called a filter. In modern communication equipment and various control systems, filters are widely used.

2021/04/14
What are the differences between inverter filters and reactors?

What are the differences between inverter filters and reactors? Let's take a look at it in detail.

2021/03/30
How inverter filters work

As the name implies, the inverter filter is a special filter specially developed for the characteristics and laws of the harmonics generated by the inverter. It is an LC filter. Inverter Input Filter Overview Inverter filters are mainly passive components consisting of inductors, capacitors and resistors.

2021/03/15
What is the function of the inverter filter

Although most inverter filters from manufacturers are equipped with internal interference suppression devices, in some applications the use of external EMC filters is still required. The two EPCSEMC filters are ideal for external applications to frequency converters. With the continuous expansion of the inverter market, fierce competition, cost pressure and technological innovation have led to a continuous decline in product prices and shrinking quantities.

2014/10/17
Our company has the international advanced automatic magnetic material testing device and the most advanced domestic production line

Our company has the international advanced automatic magnetic material testing device and the most advanced domestic production line, mainly produces anti-interference magnetic core (filter magnetic core, iron powder core) series and inductance series two categories, a total of more than 300 kinds of specifications and models, all Products are in line with ROHS, REACH environmental protection requirements.

2014/10/17
Power filter series products are in line with UL, VDE, CQC and other safety certification requirements

The power filter series products meet the requirements of UL, VDE, CQC and other safety certifications, and fully import ROHS and REACH environmental protection requirements. The product models and specifications are complete, including socket type, single-phase, three-phase, feed-through type, PCB board type and other styles of products. Tongjin can also design and manufacture according to the special requirements of customers.

2020/11/17
插入损耗介绍和测试方法

往往容易产生这样一种误解,认为EMI滤波器的插...

2020/11/17
EMI滤波器特点介绍

EMI电源滤波器是改善电磁环境、抑制电磁干扰的...

2020/11/17
敏感电流的选择和漏电流测试方法

工作电流的大小,会对EMI滤波器的性能有很大影...

这是描述信息

our story

Electromagnetic Compatibility Service Provider

VIP was established in 2009, focusing on the R&D, production and sales of EMC anti-interference components.

It has an anti-interference magnetic core production base and a fully automatic magnetic material production and testing line.
There are more than 300 specifications and models of anti-interference magnetic core products to meet the needs of different products.

  • 12

    year

    Industry experience

  • 100

    +

    senior researcher

  • 5000

    m2

    Workshop area

  • 300

    +

    Product model selection

Learn about the latest developments of VIP

What is a magnetic ring? How to use the magnetic ring?
2022/04/01
What is a magnetic ring? How to use the magnetic ring?

Absorption magnetic ring, also known as ferrite magnetic ring, referred to as magnetic ring. It is a commonly used anti-interference component in electronic circuits, which has a good suppression effect on high-frequency noise.

MORE
Correct use of power filters
2022/03/30
Correct use of power filters

During the test, we often encountered such a situation: although the design engineer connected a power filter to the power line of the equipment, the equipment still could not pass the "conducted disturbance voltage emission" test, and the engineer suspected that the filtering effect of the filter was not good. Constantly replace the filter, still can not get the desired effect.

MORE
What is the relationship between the color of the magnetic ring and the material?
2022/03/29
What is the relationship between the color of the magnetic ring and the material?

Most of the magnetic rings need to be painted to facilitate the distinction. Generally, the iron powder core is distinguished by two colors.

MORE
Types and selection of inverter filters
2021/05/17
Types and selection of inverter filters

According to the application of the inverter filter, it can be divided into the following types:

MORE
Selection and use of filters
2021/04/29
Selection and use of filters

Any device capable of processing a signal can be called a filter. In modern communication equipment and various control systems, filters are widely used.

MORE
What are the differences between inverter filters and reactors?
2021/04/14
What are the differences between inverter filters and reactors?

What are the differences between inverter filters and reactors? Let's take a look at it in detail.

MORE
How inverter filters work
2021/03/30
How inverter filters work

As the name implies, the inverter filter is a special filter specially developed for the characteristics and laws of the harmonics generated by the inverter. It is an LC filter. Inverter Input Filter Overview Inverter filters are mainly passive components consisting of inductors, capacitors and resistors.

MORE
What is the function of the inverter filter
2021/03/15
What is the function of the inverter filter

Although most inverter filters from manufacturers are equipped with internal interference suppression devices, in some applications the use of external EMC filters is still required. The two EPCSEMC filters are ideal for external applications to frequency converters. With the continuous expansion of the inverter market, fierce competition, cost pressure and technological innovation have led to a continuous decline in product prices and shrinking quantities.

MORE
Our company has the international advanced automatic magnetic material testing device and the most advanced domestic production line
2014/10/17
Our company has the international advanced automatic magnetic material testing device and the most advanced domestic production line

Our company has the international advanced automatic magnetic material testing device and the most advanced domestic production line, mainly produces anti-interference magnetic core (filter magnetic core, iron powder core) series and inductance series two categories, a total of more than 300 kinds of specifications and models, all Products are in line with ROHS, REACH environmental protection requirements.

MORE
Power filter series products are in line with UL, VDE, CQC and other safety certification requirements
2014/10/17
Power filter series products are in line with UL, VDE, CQC and other safety certification requirements

The power filter series products meet the requirements of UL, VDE, CQC and other safety certifications, and fully import ROHS and REACH environmental protection requirements. The product models and specifications are complete, including socket type, single-phase, three-phase, feed-through type, PCB board type and other styles of products. Tongjin can also design and manufacture according to the special requirements of customers.

MORE

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