DRIVE CONTROL DEVICE OF DC MOTOR, AND PUMP UNIT
PROBLEM TO BE SOLVED: To provide a drive control device of a DC motor that can suppress the heat generation of a switching means, and the vibration and noise of a motor, and also can suppress the generation of a harmonic current while employing a fixed and simple power supply as a drive power supply...
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| creator | SHUKURI YOICHI KINOSHITA KOJI |
| description | PROBLEM TO BE SOLVED: To provide a drive control device of a DC motor that can suppress the heat generation of a switching means, and the vibration and noise of a motor, and also can suppress the generation of a harmonic current while employing a fixed and simple power supply as a drive power supply of the motor, and a pump equipped with the drive control device of the DC motor. SOLUTION: The drive control device 20 of the DC motor drives the DC motor 10 by feeding power to a motor winding 12 at 100% of a duty ratio and by interrupting current feeding for a set time Δt without performing PWM control. By this, while employing the DC power supply 30 that outputs a fixed voltage, the heat generation or the like of the switching means can be suppressed by performing pseudo RAM control. COPYRIGHT: (C)2007,JPO&INPIT |
| format | Patent |
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SOLUTION: The drive control device 20 of the DC motor drives the DC motor 10 by feeding power to a motor winding 12 at 100% of a duty ratio and by interrupting current feeding for a set time Δt without performing PWM control. By this, while employing the DC power supply 30 that outputs a fixed voltage, the heat generation or the like of the switching means can be suppressed by performing pseudo RAM control. 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SOLUTION: The drive control device 20 of the DC motor drives the DC motor 10 by feeding power to a motor winding 12 at 100% of a duty ratio and by interrupting current feeding for a set time Δt without performing PWM control. By this, while employing the DC power supply 30 that outputs a fixed voltage, the heat generation or the like of the switching means can be suppressed by performing pseudo RAM control. 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SOLUTION: The drive control device 20 of the DC motor drives the DC motor 10 by feeding power to a motor winding 12 at 100% of a duty ratio and by interrupting current feeding for a set time Δt without performing PWM control. By this, while employing the DC power supply 30 that outputs a fixed voltage, the heat generation or the like of the switching means can be suppressed by performing pseudo RAM control. COPYRIGHT: (C)2007,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING 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 HEATING LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS |
| title | DRIVE CONTROL DEVICE OF DC MOTOR, AND PUMP UNIT |
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