[SI-LIST] Re: Damped voltage oscillation

Dear Ueda

In our product, there is simular situation. When the isolating bead is change 
to resistor, the resonance of power is disappear. I think this is because the 
resonance frequency of OSC and decoupling circuit are coincide. When the bead 
is changed to resistor, the Q of decoupling circuit is lower.

Changing the capacitance or inductance may be one kind of solution. The 
resonance frequency will change.

I hope I do not miss your expression.

Best Regards

Zhangkun
2003.06.23
----- Original Message ----- 
From: <ueda@xxxxxxxxxxxx>
To: "silists" <si-list@xxxxxxxxxxxxx>
Sent: Sunday, June 22, 2003 4:39 AM
Subject: [SI-LIST] Damped voltage oscillation


> Hi, ALL
> Does anyone know the example which damped voltage oscillation?
> The resistor is connected with the series in decoupling capacitor to insert
> between power(vdd) and ground (gnd).
> Don't you know the paper, the materials?
> Chihiro Ueda
> AET japan INC
> 
> 
> *************************
> Engineering Division
> Chihiro Ueda
> AET JAPAN, INC.
> URSIS Bldg. 9th Floor
> 1-2-3 Manpukuji, Asaoku,
> Kawasaki-City,215-0004Japan
> TEL:81-044-966-9981
> FAX:81-044-951-1572
> mailto:ueda@xxxxxxxxxxxx
> http://www.aetjapan.com
> *************************
> 
> 
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