Apparatus for regulating the delivery of power from a DC power source to an active or passive load

Apparatus for regulating the delivery of power from a DC power source (for example, a solar array) to a load by dynamically and accurately tracking the maximum power point ("MPP") of the source includes a switch mode DC-DC power supply ("SMPS"), a voltage sensor operatively conne...

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Bibliographische Detailangaben
Hauptverfasser:	GREIG MATTHEW R. E, STAMENIC LJUBISAV S
Format:	Patent
Sprache:	eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	Apparatus for regulating the delivery of power from a DC power source (for example, a solar array) to a load by dynamically and accurately tracking the maximum power point ("MPP") of the source includes a switch mode DC-DC power supply ("SMPS"), a voltage sensor operatively connected to the output of the power supply, a current sensor operatively connected to the output of the power supply, and a controller for providing a pulse width modulation (PWM) signal to the power supply. The load may be a battery or, if not a battery either a relatively low impedance load or a relatively high impedance load. The PWM signal has a controllable pulse width or PWM on-time. Depending upon sensed load characteristics, the apparatus utilizes measured signals from the voltage sensor or from the current sensor to achieve MPP tracking.