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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT45FM2C датащи(PDF) 97 Page - Holtek Semiconductor Inc |
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HT45FM2C датащи(HTML) 97 Page - Holtek Semiconductor Inc |
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97 / 171 page  Rev. 1.10 96 �a� �0� �01� Rev. 1.10 97 �a� �0� �01� HT45FM2C Brushless DC Motor Flash Type 8-Bit MCU HT45FM2C Brushless DC Motor Flash Type 8-Bit MCU Preliminar� Over-current Detection Thedevicecontainsanfullyintegratedover-currentdetectcircuitwhichisusedformotor protection. + _ OPCM Int_Is Is OPA : Av=1/5/10/20 DAC 8-bit OPA Comparator 0 Int_AD_EOC Int_AHL_ Lim ADC ADR EOC AD HL/LV Trigger Int Trigger C0BPE ADLVD/ADHVD Over-current Detector Block Diagram Over-current Functional Description Theover-currentfunctionalblockincludesanamplifier,10-bitA/DConverter,8-bitD/AConverter andcomparator.Ifanover-currentsituationisdetectedthenthemotorexternaldrivecircuitcanbe switchedoffimmediatelytopreventdamagetothemotor.Twokindsofinterruptsaregenerated whichcanbeusedforover-currentdetection. 1.A/DConverterinterrupt-Int_AHL_Lim 2.Comparator0interrupt-Int_Is Over-current Register Description Therearethreeregisterstocontrolthefunctionandoperationoftheovercurrentdetectioncircuits, knownasOPOMS,OPCMandOPACAL.These8-bitregistersdefinefunctionssuchastheOPA operationmodeselection,OPAcalibrationandcomparison.OPCMisan8-bitDACregisterusedfor OPAcomparison. |
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