Programmable frequency decrease circuit for a programmable power supply and method of switching frequency

The invention relates to a programmable frequency decrease circuit for a programmable power supply and a method of switching a frequency. The control circuit and the method modulate a switching frequency of a switching signal in response to a feedback signal and an output voltage of the programmable...

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Bibliographische Detailangaben
Hauptverfasser:	CHIU CHEN-HUA, ANG YONG-ANN, HSU JHIH-DA, YANG TA-YUNG
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 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 invention relates to a programmable frequency decrease circuit for a programmable power supply and a method of switching a frequency. The control circuit and the method modulate a switching frequency of a switching signal in response to a feedback signal and an output voltage of the programmable power supply. The switching signal is used for switching a transformer and regulating an output of the programmable power supply. The level of the feedback signal is related to the level of an output power of the programmable power supply. The output voltage of the programmable power supply is programmable. Further, the control circuit and the method modulate a maximum switching frequency of the switching signal in response to the output voltage of the programmable power supply for stabilizing the system.