[sdiy] Voltage Regulators

[Seb Francis]

More the 79xx that needs a minimum load.  In my experience 78xx regulate 
ok with no load (although I think the datasheets still spec a min load).

If I have a power-on LED I will always run it from the negative rail to 
give a bit of load.

Seb


Thomas Laskowski wrote:
> I never had a problem with them oscillating (even with no caps).  I think they do require a minimum load tho to function properly.
>
> -Tom
> ----------------------------------------
>   
>> Date: Thu, 16 Oct 2008 21:09:56 -0400
>> From: wackyvorlon at gmail.com
>> To: xyzzy at sysabend.org; synth-diy at dropmix.xs4all.nl
>> Subject: Re: [sdiy] Voltage Regulators
>> CC: 
>>
>> On Thu, Oct 16, 2008 at 8:57 PM, Tom Arnold  wrote:
>>     
>>> I know people arn't fans of the 78xx/79xx regulators due to noise issues and
>>> the like,
>>>
>>>       
>> With the 78xx series regulators, to my understanding, the key concern
>> is that it has a tendency to oscillate under inappropriate conditions,
>> hence the need for the caps.
>>
>> -- 
>> Paul Anderson
>> VE3HOP
>> wackyvorlon at gmail.com
>> http://www.oldschoolhacker.com
>> QRP ARCI #13228, GQRP #12447
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