[time-nuts] Defective Z3801 and strange PS board
Jim Lux
jimlux at earthlink.net
Sun Jul 10 21:15:13 UTC 2011
On 7/10/11 12:56 PM, Marco IK1ODO wrote:
> At 18:54 10/07/2011, Ed wrote:
>> I agree that the extra converter is to provide isolation and input
>> voltage flexibility.
>
> Thanks to all that answered my questions; very interesting thread.
> Possibly only input voltage flexibility and EMC considerations, since
> the isolation was already given by the second block of DC/DCs.
>
not all DC/DC converters provide DC isolation.. A straight buck
converter to take a (relatively) high bus voltage down to utilization
voltage is an example.
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