HAPPY DESIGN    ( PDF 20KB )
Are you satisfied with the EMI countermeasure result?
The production of Happy Design starts from this point. Therefore, the EMI countermeasure is comparatively not possible with this...
DECOUPLING DEVICES EFFFECTS    ( PDF 901KB )
What is DECOUPLING DEVICE (POWERFIL) that a product of KRFM AMERICA, Inc..
What is great about it? What are they used for? ...
Before answering the questions abouve, we would like to bring up these questions: ...
MICRO PARTS FOR MACRO EFFFECTS    ( PDF 151KB )
As digital speed increases in electornic equpment, including he ocnstan advancement of computers,
problems such as "radio waves emitted from the computer" and cellular phones that casues malfunctions to electronics equipment", the problem of MEC (Electromaganetic Compatibility) called "noise" is being pointed out and solutions are being sought...
New Device "D.C. Bias Circuit Harmonics Filter "
of Powerful EMC Countermeasure
   ( PDF 61KB)
EMC SOLUTION
COUNTERMEASURE FOR POWER SUPPLY LINE HARMONICS (NOISE)    ( PDF 1049KB)
EMI / EMC problem occurs when memory or logic circuit ICs are composed of several logic circuits on the board, but each ICs has no problem during action of single substance. Harmonics that each ICs of a single mounted occurs into the logic circuit, combines and propagates on the bias current circuit when mounted by several pieces of IC. The harmonics produced by the other IC's harmonic coming from the bias current line is the cause to distribute complex broad harmonics. By inserting the POWERFIL (KHLC series) in the power supply line (BIAS Circuit), it will prevent the entry and leaking of harmonics into IC.
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