The specs on these claim "exceptionally low ESR".
This big Farad cap:
http://www.sonicelectronix.com/item_9379_Kole+Audio+C6D.html
claims "ultra-low ESR" but doesn't specify - it's late and I
don't have
time to visit the manufacturer's site to get hard numbers.
This hybrid:
http://www.sonicelectronix.com/item_13509_Power+Acoustik+CAPCELL-300.html
claims "4.5 Milliohm int. resistance"
What is the ESR you would say is necessary for effective
results?
>> I need to manage the load-spikes from a SSB modulated HF signal
>> through a solid state RF amp.
>>
>> Rather than two $190. 90lb batteries I can use one large battery and
>> one Hybrid cap and in my intermittent load application be in good
>> shape.
>>
>> Yes?
>
> No. The cap is of no benefit for the dynamic load application
>
> Because of its relatively high equivalent series resistance, an
> electrochemical capacitor cannot discharge quickly enough to help supply
> some of the current needed on voice peaks.
>
> Used in a car, an electrochemical cap is effective at keeping the
> headlamps from dimming because the filaments in the lamps respond
> slowly. But in that application, such a device doesn't prevent the car
> stereo (or radio) from seeing the same voltage fluctuations under
> modulation. That's why these super capacitors for car audio systems are
> all hype; it's the wrong application for this technology.
>
> 73,
> Mike K1MK
>
>
--
Thanks! & 73, doc, KD4E
FS/Swap/Wanted: http://kd4e.com/swapn.html
Free OS : http://www.PuppyLinux.com
Personal: http://kd4e.com
|_|___|_|
| | & | |
/\ {|
/ \ {|
/ \ {|
/ @ \ {|
| |~_|~~~~|
| -| | |
============\ # KD4E
Have an http://ultrafidian.com day!
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
|