Parameter conversion for stability of digitally controlled converter

A DC-DC converter is digitally controlled by detecting an output of the converter; comparing the output to a target value to determine an error value; calculating a control parameter based on the error value in which an output control target is a linear function of the control parameter; converting...

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Bibliographische Detailangaben
1. Verfasser:	Hajime Shiji
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:	A DC-DC converter is digitally controlled by detecting an output of the converter; comparing the output to a target value to determine an error value; calculating a control parameter based on the error value in which an output control target is a linear function of the control parameter; converting the control parameter to a converter control parameter; and, based on the converter control parameter, generating a pulse signal to control a power switch of the DC-DC converter. The output control target may be an output voltage, an output current, or an output power. Calculating the control parameter may include using equations that provide either proportional-integral-derivative (PID) control or proportional-integral (PI) control. The DC-DC converter may be a boost DC-DC converter. The pulse signal may provide duty control, on-time control, off-time control, frequency control, or phase-shift control.