Solid state regulated power transformer with waveform conditioning capability

Apparatus for providing the voltage transformation functions of a conventional electrical power transformer. An AC input signal is chopped in a solid state switching converter at a frequency very much larger than the frequency of the input signal and then filtered to attenuate the high frequency com...

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Bibliographische Detailangaben
Hauptverfasser:	BOWERS, JAMES C, BROOKS, JAMES L, STAAB, ROGER I, NIENHAUS, HARRY A
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONTROLLING CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION PHYSICS REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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Beschreibung
Zusammenfassung:	Apparatus for providing the voltage transformation functions of a conventional electrical power transformer. An AC input signal is chopped in a solid state switching converter at a frequency very much larger than the frequency of the input signal and then filtered to attenuate the high frequency component while passing the frequency of the AC input signal. The switching converter includes a pair of bidirectional solid state switches, an inductor and a capacitor connected in a buck converter, boost converter or buck-boost converter arrangement to provide a step up, step down, or step up/step down capability, respectively. A feedback signal modulates the duty cycle of the switching converter to provide automatic voltage regulation under varying loads and leading and lagging power factors.