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189C52单片机直流电机控制器毕业设计【摘要】本论文介绍了基于89C52单片机的小功率直流电机控制系统。该系统主要功能为设定直流电机的转速和转向，通过光电开关对电机测速，将测得的转速值反馈给单片机，单片机经PI运算后输出PWM信号控制电机运转。实际测试结果表明该系统的转速误差范围小20圈/分，调整时间短，转速设定方便快捷，显示直观清楚。本文还对此系统的性能指标进行了分析。【关键词】A1A0A2A3A5A6A4A7A5A6A8A91前言A10A11A12A13A14A15A16A17A18A19A20A21A22A23A24A20A25A26A27A23A28A20A25A29A30A31A20A32A33A34A35A20A36A37A38A39A40A41A42A43A44A45A46A47A48A49A50A51A52A53A54A44A45A20A55A56A57A21A20A58A59A60A61A60A62A20A58A59A63A64A65A66A67A68A69A33A70A61A46A71A72A73A74A75A76A77A32A33A49A78A79A80A81A82A83A84A85A86A87A88A12A13A14A32A33A89A90A91A92A93A94A95A24A49A96A97A12A13A14A77A32A33A71A72A98A99A100A41A101A102A103A16A77A71A72A86A104A52A105A106A107A53A54A108A109A70A14A77A110A27A111A112A98A99A93A113A114A33A115A116A110A27A49A78A57A33A55A117A110A27A118A119A49A78A55A117A110A27A118A119A120A121A122A123A124A33A12A13A14A125A126A29A44A45A49A55A117A110A27A118A119A15A16A44A45A127A128A23A24A49A82A83A129A130A49A131A132A133A134A135A19A49A136A137A24A46A138A48A49A103A40A52A105A106A107A77A114A33A139A125A139A75A76A86A140A141A142A70A143A14A144A145A49A146A142A70A14A147A148A149A150A20A22A112A24A20A25A29A151A152A153A154A49A155A124A146A142A70A14A15A16A156A157A77A110A27A158A59A20A159A120A77A160A143A161A162A66A163A164A59A165A166A46A167A168A138A48A49A50A51A52A167A168A29A54A169A120A170A32A33A86A171A172A125A49A146A142A70A143A14A77A14A148A66A44A45A173A174A123A80A175A176A177A120A77A178A63A86A87A88A179A26A14A126A180A44A45A71A72A40A41A181A182A77A70A165A70A183A184A137A185A61A186A77A93A94A187A104A49A57A33A188A44A182A77A189A190A184A137A185A186A126A29A191A192A110A45A193A194A195A196A197A198A199A200A201A202A203A204A205A201A195A196A206A202A200A205A207A49A208A209A194A199A204A210A98A22A211A146A142A70A14A181A77A110A27A173A174A86A212A68A110A27A173A213A15A16A189A190A214A137A24A20A38A27A25A29A129A130A20A143A215A158A59A156A157A20A136A137A24A46A138A48A49A216A217A218A77A124A212A68A44A27A173A174A177A219A220A52A12A13A14A44A45A118A119A221A222A104A49A50A51A15A16A177A157A77A80A81A97A223A224A225A226A8611有关技术简介111PWM控制A227A228A229A227A228A229A227A228A229A227A228A229A230A231A232A193A194A195A196A197A198A199A200A201A202A203A204A205A201A195A196A206A202A200A205A207A210A233A233A191A234A192A23A110A45A49A208A209A191A192A110A45A49A124A235A68A236A237A33A238A239A240A70A241A242A77A242A243A110A45A89A90A49A244A125A52A44A45A71A72A221A193A145A245A70A14A110A27A210A246A73A74A176A177A157A77A32A33A49A11A124A247A22A176A248A47A77A194A199A204A44A45A89A90A86A194A199A204A44A45A124A249A33A250A251A252A61A77A55A117A253A187A125A109A115A116A70A254A126A29A44A45A77A235A68A82A83A16A136A77A89A90A49A75A76A32A33A52A255A66A170A20A241A242A74A184A137A44A45A140A178A224A77A167A168A71A72A221A86A208A78A200A0A49A194A199A204A124A235A68A109A115A116A242A243A70A92A126A29A55A117A116A1A77A173A213A86A241A163A24A122A2A137A179A55A61A77A114A33A49A173A165A77A3A4A145A5A110A45A33A125A109A235A6A15A17A115A116A242A243A77A70A92A126A29A116A1A86A194A199A204A242A243A169A225A124A55A117A77A492A41A203A7A8A9A10A11A12A13A14A40A15A16A17A10A68A18A19A61A20A21A22A180A23A40A20A21A22A180A24A77A61A25A26A61A18A27A28A29A218A30A31A26A85A10A32A33A34A35A36A37A249A38A65A39A42A43A156A44A45A10A40A31A10A46A47A48A28A68A18A19A61A249A38A65A43A156A44A45A40A85A10A46A47A48A28A19A61A249A85A49A77A50A20A51A184A52A53A40A11A12A39A42A17A115A54A29A55A56A186A57A58A118A59A60A62A77A63A64A67A69A70A71A213A23A218A72A32A20A73A71A74A35A217A75A76A78A79A80A84A81A10A82A34A35A38A7A83A23A86A150A10A87A88A44A46A40A89A128A90A103A91A75A81A77A92A93A94A67A69A95A96A97A28A29A98A73A71A203A70A71A103A99A40A101A100A102A104A49A105A106A107A10A102A31A108A105A85A118A59A67A69A40A55A109A110A111A112A65A218A113A37A16A17A75A76A78A184A136A84A75A76A10A34A35A40A56A114A117A34A35A183A119A120A121A122A20A10A210A79A77A123A218A9A10A124A125A101A126A34A35A10A184A136A118A59A127A69A40A129A54A130A170A131A170A61A132A109A110A61A25A10A133A134A40A229A54A130A170A109A110A135A137A77A92A93A94A67A69A10A103A91A138A70A235A139A97A140A141A142A110A40A147A28A143A61A144A61A145A106A107A146A148A149A151A10A69A152A40A7A153A154A155A157A158A154A164A119A29A159A218A68A160A161A162A163A77A166A167A118A168A153A154A155A157A158A154A164A119A40A169A171A180A67A172A61A144A61A145A106A107A10A110A163A173A89A174A175A146A148A40A186A57A58A67A69A95A96A176A177A178A112A65A179A56A77A169A171A61A144A61A145A95A96A181A233A61A145A95A96A108A182A185A67A69A95A96A10A146A148A29A173A126A30A187A10A70A71A188A189A40A228A163A119A67A69A70A71A181A190A191A150A113A192A67A69A193A194A10A179A56A40A186A57A58A67A69A95A96A195A112A196A197A159A10A146A148A77A65A198A159A203A199A40A140A110A163A196A201A30A186A57A58A67A69A95A96A77A218A202A204A205A206A40A127A88A34A184A127A69A207A208A10A34A184A23A209A30A188A189A40A218A30A188A189A28A63A56A39A42A61A132A213A10A127A69A188A189A40A211A218A30A188A189A28A55A56A34A35A212A214A189A77A101A215A218A202A61A216A67A69A40A63A56A219A218A30A188A189A7A67A69A61A25A170A220A46A221A210A10A162A163A222A7A223A133A10A226A227A40A114A230A20A28A41A203A221A210A135A137A223A246A181A221A210A231A136A20A232A234A108A221A210A61A132A10A236A214A84A237A127A238A77A41A239A40A91A2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