[Milsurplus] 400 Hz Static Inverter

[Peter Gottlieb]

You don't need schematics, you only need to know how to set the unit up.  Get 
one with 208 3 phase input and output.  You can rig up the input to run on 
single phase, it just makes DC.  Then set the output for 400 Hz at 120 volts.


On 4/29/2012 10:20 PM, Paul Kraemer wrote:
> Good luck finding one with schematics!
> All surface mount propritary stuff
> KB Electronics makes some that look a bit simpler and on the analog
> side---they may be more willing to share info than most out there.
> Paul K0UYA
> ----- Original Message -----
> From: "Francesco Ledda"<frledda at att.net>
> To:<jfor at quikus.com>; "'KD7JYK DM09'"<kd7jyk at earthlink.net>
> Cc:<milsurplus at mailman.qth.net>
> Sent: Sunday, April 29, 2012 8:55 PM
> Subject: Re: [Milsurplus] 400 Hz Static Inverter
>
>
>> Has anyone tried one of those AC/AC converters for motor control? They are
>> pretty cheap and can go up to 1000Hz.
>>
>> -----Original Message-----
>> From: milsurplus-bounces at mailman.qth.net
>> [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of J. Forster
>> Sent: Sunday, April 29, 2012 11:41 AM
>> To: KD7JYK DM09
>> Cc: milsurplus at mailman.qth.net
>> Subject: Re: [Milsurplus] 400 Hz Static Inverter
>>
>> Yes. That's exactly what I'm considering, but I'd like to find a
>> brand/model
>> that is known to be modifyable. Prints would be a real bonus.
>>
>> -John
>>
>> =================
>>
>>
>>> : In looking for a static inverted to output about 500 Watts of 400
>>> Hz, it
>>> : ocurred to me that it might be possible to modify a current 60 Hz
>>> inverted
>>> : for 400 (or 800-2400) Hz.
>>>
>>> In the late 90's, people started modifying the inexpensive 60 Hz
>>> invertors from auto parts stores to 400 Hz by changing two capacitors.
>>>
>>> Kurt
>>>
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