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I need help designing a 400hz 115vac 3phase power supply -- Help

phoenixcomm

Hi I need to find a way to get 400hz/115vac/3phase cheaply..  Im a digital person...

any thoughts.

The unit could be powered from a 28vdc source but better yet 115ac house hold 15amp circuit

 

 

Cris

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    In order to cause synchros to follow each other only one phase of excitation is required. The excitation ac is applied to r1 and r2 of both the transmitter and reciever synchros. The stators, s1, s2, and s3 are connected to each other in that order. Rotating one of the synchros will cause the other to follow. The three phases you speak of are produced within the windings of the transmitter synchro. In synchro driven motor devices the excitation is provided only to the transmitter. The output from the rotor of the reciever is fed to a servo amplifier which drives a motor to move some object which is linked to the shaft of the reciever synchro. The motor drives the object until the output from the reciever reaches null,  which may be zero voltage or zero phase difference, compared to the excitation signal.

    The reason 400Hz is used for aircraft equipment is that the size and weight of the devices is reduced greatly compared with 50 or 60Hz devices.

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    In order to cause synchros to follow each other only one phase of excitation is required. The excitation ac is applied to r1 and r2 of both the transmitter and reciever synchros. The stators, s1, s2, and s3 are connected to each other in that order. Rotating one of the synchros will cause the other to follow. The three phases you speak of are produced within the windings of the transmitter synchro. In synchro driven motor devices the excitation is provided only to the transmitter. The output from the rotor of the reciever is fed to a servo amplifier which drives a motor to move some object which is linked to the shaft of the reciever synchro. The motor drives the object until the output from the reciever reaches null,  which may be zero voltage or zero phase difference, compared to the excitation signal.

    The reason 400Hz is used for aircraft equipment is that the size and weight of the devices is reduced greatly compared with 50 or 60Hz devices.

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