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need 24V to 115VAC 3 phase inverter for gyro
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November 8th 05, 07:15 AM
Dan, U.S. Air Force, retired
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need 24V to 115VAC 3 phase inverter for gyro
John_F wrote:
The smallest lightest weight way it to do this is to generate 180
volts DC with a high frequency DC to DC converter then use a counter
to generate the three phases which drive a six FET three phase H
bridge to generate a modified sine wave using the 180 volts DC that
you generated with the HF transformer which is much lighter weight
than a 400 Hz transformer for the same wattage. This will give you
115 VAC at 400 Hz and eliminates the heavy 400 Hz transformer.
John
On 29 Oct 2005 01:20:54 -0700,
wrote:
I've got an ARU 44 gyro and I'd like to power it off my 24VDC system.
It needs 115VAC 3 phase, and about 75W to 100W. Is there an off the
shelf unit that can do this, or maybe someone knows of a schematic to
build my own? I'm an electronics engineer so I can do this, but
inverters are not my specialty so any guidance would be greatly
appreciated.
What heavy transformer? Use an audio transformer.
Dan, U.S. Air Force, retired
Dan, U.S. Air Force, retired