Method and arrangement for varying the mean output value of a load

The output value of a load is varied by controlling the time relationship during a random time interval during which the output is being supplied, and thus controlling the mean output value of the load. The zero crossovers (30') of an AC supply oscillation (11a) are determined in order to trigg...

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Bibliographische Detailangaben
Hauptverfasser:	FREDERICK BEDARD,JAMES, FRANK NATI,SALVATORE
Format:	Patent
Sprache:	eng ; ger
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 CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	The output value of a load is varied by controlling the time relationship during a random time interval during which the output is being supplied, and thus controlling the mean output value of the load. The zero crossovers (30') of an AC supply oscillation (11a) are determined in order to trigger an interval timer (28) which generates pulses which are applied to an on/off input of the load; the duration of each "on" time interval can be adjusted in order to control the portion of the random time interval during which the load is in the "on" state.