[Lowfer] Question about parallel diodes

[Mitch Powell]

Andy - one of the cures for this problem used to be - just parallel each diode with a 0.01uF
ceramic capacitor ( of appropriate voltage rating ) . One capacitor for each diode, so in a bridge
you would have four capacitors.
It was pretty simple - but worked in many applications.

Mitch
On 2010-06-06, at 12:48 AM, Andy - KU4XR wrote:

> Thanks for any replies: I have just recently come to understand that
> a diode can be, or make noise in a circuit. Frankly, I had never
> considered that before, until Charlie - W5COV began discussing it
> with me on power supply topics. It finally dawned on me that a 
> diode " clips " the voltage peaks of a sine wave, this inherently
> creates noise in the process by distortion of the signal voltage.
> OK, my question: In theory, or real world practice, would putting
> 2 diodes in parallel help in any way to lower the noise it might
> generate, OR ::: would it in fact double the noise generation.
> I'm not approaching this concerned about current handeling, I'm
> specifically curious about the diode noise. And to clarify; the 
> diodes will be anode to anode / cathode to cathode, not anti - 
> parallel.
> Looking forward to the education; 73 all :::  
> 
> 
> 
> Andy - KU4XR - EM75xr - Friendsville, TN. USA
> LOWfer Beacon " XR " @ 185.29875 KHz ( QRSS-60 )
> Coordinates:  N:  35º 43' 54" - W:  84º 3' 16"
> http://www.myspace.com/beaconxr
> http://webpages.charter.net/ku4xr/
> ______________________________________________________________
> Lowfer mailing list
> Home: http://mailman.qth.net/mailman/listinfo/lowfer
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Lowfer at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>