Author: HammyDate: 08:08 27-03-08
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What is a typical period and pulse width of a load transient test on
60kHz flyback converter. I've been reading datasheets and there
doesn't seem to be any consistency. They range anywhere from a few
milliseconds to over a hundred; is there not a standard? The load step
is also anywhere from 0 to 100% to 50 to 100%.
Are they just selecting the test condtion that provides the most
favourable results?
Thanks
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Author: John LarkinDate: 11:27 27-03-08
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On Thu, 27 Mar 2008 12:08:17 GMT, Hammy <spamme@hotmail.com> wrote:
>What is a typical period and pulse width of a load transient test on
>60kHz flyback converter. I've been reading datasheets and there
>doesn't seem to be any consistency. They range anywhere from a few
>milliseconds to over a hundred; is there not a standard? The load step
>is also anywhere from 0 to 100% to 50 to 100%.
>
>Are they just selecting the test condtion that provides the most
>favourable results?
>
>Thanks
Of course there's no standard test, because there's no standard load.
It might be powering a precision RF amplifier or running an LED
backlight or charging a battery.
John
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Author: Phil AllisonDate: 23:10 27-03-08
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"John Larkin ASD "
>Hammy
>
>>What is a typical period and pulse width of a load transient test on
>>60kHz flyback converter. I've been reading datasheets and there
>>doesn't seem to be any consistency. They range anywhere from a few
>>milliseconds to over a hundred; is there not a standard? The load step
>>is also anywhere from 0 to 100% to 50 to 100%.
>>
>>Are they just selecting the test condtion that provides the most
>>favourable results?
>>
>>Thanks
>
> Of course there's no standard test, because there's no standard load.
> It might be powering a precision RF amplifier or running an LED
> backlight or charging a battery.
** Irrational, irrelevant drivel.
...... Phil
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Author: John LarkinDate: 20:37 28-03-08
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On Fri, 28 Mar 2008 14:10:21 +1100, "Phil Allison"
<philallison@tpg.com.au> wrote:
>
>"John Larkin ASD "
>>Hammy
>>
>>>What is a typical period and pulse width of a load transient test on
>>>60kHz flyback converter. I've been reading datasheets and there
>>>doesn't seem to be any consistency. They range anywhere from a few
>>>milliseconds to over a hundred; is there not a standard? The load step
>>>is also anywhere from 0 to 100% to 50 to 100%.
>>>
>>>Are they just selecting the test condtion that provides the most
>>>favourable results?
>>>
>>>Thanks
>>
>> Of course there's no standard test, because there's no standard load.
>> It might be powering a precision RF amplifier or running an LED
>> backlight or charging a battery.
>
>
>** Irrational, irrelevant drivel.
>
You have been charged with being coarse, offensive, and nasty. This is
a very serious offense.
You are hereby declared guilty, and given a life sentence of being
Phil. [1]
John
[1] roughly 5e-10 of the ultimate age of this universe. And you're
wasting it being a mean jerk.
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