LOW AUDIBLE NOISE POWER SUPPLY METHOD AND CONTROLLER THEREFOR

申请公布号：KR20060121085(A)

申请号：KR20057019754

申请日期：2004.02.17

申请公布日期：2006.11.28

申请人：

SEMICONDUCTOR COMPONENTS INDUSTRIES, L.L.C.

发明人：HALL JEFFERSOM W.;BASSO CHRISTOPHE

分类号：H02M3/335;H02M3/156

主分类号：H02M3/335

摘要：A power controller forms drive pulses that reduces audible noise under light load conditions.

VIBROINSULATING COMPENSATOR OF TEMPERATURE DEFORMATION

CHECK VALVE

GEARING

JAW CLUTCH MOSTLY FOR VEHICLE GEAR BOXES

COUPLING FOR TRANSMITTING ROTATION THROUGH SEALING PARTITION

ULTRASONIC NON-REFERENCE THICKNESS GAUGE

CHIMNEY

METHOD OF LAYING UNDERGROUND PIPELINE ALONG WATER-LOGGED AND SWAMPED SECTIONS

IMPELLER OF DIAMETRIC FAN

WELL SUCKER-ROD PUMP

CRANKCASE-SCAVENGED TWO-STROKE INTERNAL COMBUSTION ENGINE

METHOD OF MINING STEEP COAL SEEMS

WORKING MEMBER OF EXCAVATING CUTTER-LOADER

CHUCK FOR CONNECTING DRILLING TOOL WITH VIBRATION HAMMER

METHOD OF MAGNETIZING WELL FLUID

METHOD OF OPERATING GAS-LIFT WELL SYSTEM

CHUCK COLLAR OF DRILLING RIG

FOLDED ROOF

BULLDOZER

ARCUATE DRAINAGE PIPE