[Amps] Chinese 15KV 2A rectifier modules?

Jim W7RY w7ry at centurytel.net
Wed Nov 6 22:56:43 EST 2013


Get someone to X-ray them and see whats in there.

Large or small body diode and how many.

73
Jim W7RY


On 11/6/2013 6:09 PM, Jim Barber wrote:
> Good idea, thanks.
> I have a variable DC supply and a handful of low-value, high-wattage 
> resistors that should do the trick.
>
> 73,
> Jim N7CXI
>
> On 11/6/2013 6:02 PM, Dr. David Kirkby wrote:
>> You could do a reasonable job of seeing how they handle the current
>> using a low voltage DC supply, since they are only going to get hot
>> when conducting, and you can force them to conduct without having a
>> high voltage supply, it should be easy to see how they handle 2A.
>>
>> Of course, in normal use the current waveform would not be constant,
>> but if they are rated for 2A forward current, testing them is probably
>> the best way.
>>
>> Dave
>>
>> On 7 November 2013 00:37, Jim Barber <audioguy at q.com> wrote:
>>> Has anyone had any experience (good or bad) using the Chinese 15KV, 2A
>>> rectifier modules that were selling on eBay a while back? The part 
>>> number
>>> printed on the side is PRHVP2A-20 .
>>>
>>> I bought a handful a year or so ago when I was building my hi-pot 
>>> tester.
>>> They seem to handle high voltages without issue, (my hi-pot works 
>>> fine past
>>> 10KV) but seem awfully small for the 2A current rating.
>>>
>>> The reason I ask is because I've been contemplating building yet 
>>> another
>>> 6A10 rectifier board for a single 8877 I'm working on. The modules 
>>> would be
>>> easier/smaller, but since the encapsulated part is only (roughly) 
>>> 1.5" x
>>> .5", I'm thinking the ratings may be too good to be true.
>>>
>>> Thanks,
>>> Jim N7CXI
>>>
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>>
>
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