• April 15. 2022

Toroidal common mode choke for EMI suppression Chokes for EMC filters We plan use them before LED constant voltage 12V supply. Inductance 10mH or higher Rated current 1.5A Rated voltage 250VAC Insulation breakdown test (winding to winding) 60 sec @  1500VAC Design- horizontal PCB mount, through hole. Dimensions  must not exceed: 28*18-12cm, width and depth - 35mm   Main Application:...

• April 26. 2022

High frequency transformer widly used in industry application, here let's share how we make a customized EE65/32/27 transformer to our clients: 1 BOBBIN 16-pin bobbin with a 23mm x 30.6mm rectangular winding former. Length of the winding former is 39.66mm. Maximum depth of the winding is 8.2mm. 2 CORES 2 x E 65x32x27mm and F48 material. 3 WINDING Use 3.25mm diameter solid copper wire. The wire res...

• May 27. 2022

With excellent technology support,Coilcore factory have strong ability to produce Commond Mode Choke coils, quality equal to Janpan MetalGlass enterprise's Standard，following 4 Series details description: 1). FT-3KMF4627H Seires (Equel to Coilcore's NT---G Series) FT-3KM Series Commom Mode Choke used in Single Phase, Three Phase Electronical application. 2).FT-3K50T Series ( Equel T...

• May 31. 2022

The four-phase common mode choke is a four-terminal device, which founded by a nanocrystalline magnetic toroidal core as a common mode interference suppression device, four sets same size, same turns numbers coils wound symmetrically. When the common mode current flows, the magnetic flux in the magnetic ring superimposes each other, resulting in a considerable inductance, which has a suppressing e...

• August 26. 2022

With the successful development of a planar core, a planar transformer design was realized. The planar transformer requires a magnetic core, and the winding is a planar structure, usually chopped into PCB windings to achieve high frequency and low shape. In the market, the Planar transformers power from 5W to 20KW, frequency from 20KHz to 2MHz, efficiency up to 98%. It’s widely application in tele...

• October 11. 2022

Gallium nitride has the advantage of high frequency characteristics. Currently, the gallium nitride fast charging frequency starting at exceeding 100KHz, even as high as 300KHz. As the power devices' switching frequency increases significantly, various parasitic parameters gradually affect the fast charging efficiency under high frequency conditions.How to eliminate the influence of parasitic para...

• May 21. 2024

In switching power supplies, there are two common types of noise: common mode noise and differential mode noise. The noise with the same path as the input signal is called differential mode noise, while the noise from ground to output with the same phase is called common mode noise. Common mode inductance can suppress common mode noise and improve signal quality through filtering. As for power lin...

• May 20. 2026

In recent years, as power grids have increasingly advanced toward intelligent and automated operation, real-time monitoring of power systems—such as insulation monitoring of transmission lines, fault location in distribution networks, and overhead line icing detection—has become a critical focus. Given the high voltage levels of transmission lines, monitoring equipment is often exposed to prolonge...