A DRIVING DEVICE AND METHOD OF A BLDC MOTOR

A driving device of an BLDC(BrushLess DC) motor and a method thereof are provided to increase a maximum driving speed of the BLDC motor by remarkably decreasing a counter electromotive voltage of the BLDC motor. A driving device an BLDC motor(10) includes a rectification unit(12), an inverter(11), a...

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Bibliographische Detailangaben
Hauptverfasser:	SEO, JEONG HO, BAE, HUN YUB, OH, KWANG KYO, YOO, HAN JOO, PARK, PYEONG KI, KOJI HAMAOKA
Format:	Patent
Sprache:	eng
Schlagworte:	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	A driving device of an BLDC(BrushLess DC) motor and a method thereof are provided to increase a maximum driving speed of the BLDC motor by remarkably decreasing a counter electromotive voltage of the BLDC motor. A driving device an BLDC motor(10) includes a rectification unit(12), an inverter(11), and a microcomputer(20). The rectification unit converts AC(Alternating Current) power into DC(Direct Current) power. The inverter converts the DC power into the AC power by switching a plurality of power switches and supplies the converted AC power to the BLDC motor. The microcomputer detects a position of a rotor and controls to perform phase conversion before a terminal voltage of the BLDC motor exceeds 1/2 of an output voltage of the rectification unit when a driving speed of the BLDC motor reaches a rated speed.