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11-3. AG PCB

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POWER SUPPLY PART

DRIVING PART

SENSING PART

COMMUNICATION PARTDD MOTOR CONTROL CIRCUIT

12. CIRCUIT DESCRIPTIONS12-1. OVERALL SYSTEM

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▶ Function - GeneratesconstantDCvoltagesof15Vand5V,etc.necessarytocontrolthecircuitsbytransforminghighACinput voltages. - Thecircuitofthispartisconstructedusingaswitchingtransformer.

▶ Description - GeneratesDCvoltagesbytransformingACinputsthroughadiode(bridge). - Theswitchingtransformerimplementsvoltagesof15Vand8V. - Aconstant5VisoutputattheIC1outputterminal.

12-2. POWER SUPPLY PART

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▶ FunctionControlstheelectricalharnesspartsoftheset.

▶ Description - MICOMsendsahighsignaltotheportofatargetharnesstooperate. - IfahighsignalentersasIC7andIC8input,theoutputterminaldecreases. - Atthistime,arelayoperatestosupplypowertothetargetharness.

12-3. DRIVING PART

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▶ Function - Detectstemperaturesofeachpartthroughtheoutputofathermistor. - Detectsthevolumeofwaterbymeasuringthefrequencyofthewaterlevelsensor. - Detectsthedoorlockstate.

▶ Description - DeterminesthecurrentvolumeofwaterbydetectingtheIC3’soutputs(MICOMPin6). - Controlsthewatertemperaturetobesuppliedthroughthethermistor’soutputs. - Determinesthedoorlockstatebydetectingtheon/offstateofthedoorswitchcontact.

12--4. SENSING PART

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▶ Function - CommunicationscircuitforcontrollingthedisplayoftheSUBPCB. - ControlcircuitfortheencoderandswitchoftheSUBPCB.

▶ Description - Input/OutputportsoftheMICOMforcontrollingtheLED,display,andswitchoftheSUBPBA.

12-5. COMMUNICATION PART

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▶ Function - InvertercontrolofDDmotor - DetectmotorrpmusingHall_ICintheDD_MOTOR - DetectDC_LINKvoltage - Detectcondition(suchasexcesscurrent)ofmotorcontrolpart

▶ Description - PWMoutputwillbeavailableatPINno.10~15withreferencetoactivehighwhenusingINVERTERcontrolof DD_MOTOR - IPMwillgiveLosignalto16PINontheMICOMthroughF0forabnormalcasessuchasover16Aisgeneratedinthe IPMorupperphasecurrentiscontrolledlessthan10.5V. - DependingontheON/OFFconditionofHALAL_ICinsidetheDD_MOTOR,High/LowsignalwillbeputthroughPIN19 and20ontheMICOM,andROTORpositionofDD_MOTORandrpmwillbedetected - 10%ofDC_LINKvoltagewillbeputintoPIN28,andwilldetectA/DfunctionDC_LINKvoltageinsidetheMICOM

12-6. DD MOTOR CONTROL CIRCUIT

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13. REFERENCE INFORMATION13-1. MODEL NAME

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