| 摘要 |
A magnetically controlled variable transformer comprising magnetic cores and windings by which to accurately and reliably control electrical AC output power. The cores and windings act as a continuously variable turns-ratio transformer for use primarily at high power frequency applications (e.g. 400 KHz or higher), such as in aircraft and aerospace vehicles. The transformer of the present invention is implemented by coupling a 2-core variable saturable transformer to a fixed turns ratio linear transformer. By varying a DC control current to a DC control winding which is magnetically coupled to the saturable transformer, the AC output voltage at a resistive or reactive load can be varied from zero to full power, whereby the control range of the transformer can be maximized.
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