【选型】互补NPN和PNP型功率三极管在永磁电机信号采集推挽输出电路中的选型和设计应用
一、应用背景
永磁电机的控制系统如图1所示，整个控制系统的主要组成部分分为：供电单元、主控单元、功率转换单元、电机单元和旋变解码组成。其中供电单元主要由主控电源和驱动传感器电源组成；主控单元主要由CPU、模拟量采样、数字量采样组成；功率转换单元主要由电压电流传感器、驱动电路板、功率转换IGBT组成；电机单元和旋变解码单元主要由永磁电机、旋转变压器和编码器组成。
图1永磁电机控制系统示意图
接下来着重介绍一下永磁电机控制系统中的旋变解码单元的电路设计应用。永磁电机的速度信号通过旋转变压器进行转速测量，测量的旋转交流信号需要通过解码芯片进行解析，然后通过信号采集电路送入主控CPU就行电机算法控制。其中永磁电机旋变解码单元的工作原理如图2所示，旋转变压器的解码芯片输出信号EXC，EXC信号通过运算放大器的比较滤波运算，通过互补NPN和PNP功率三极管组成的推挽电路，输出信号VOUT给CPU。因此必须选型和设计合适的互补NPN和PNP功率三极管，才能组成推挽电路进行EXC信号的驱动放大，以及精确的信号输出。
图2互补NPN和PNP功率三极管组成的推挽电路原理图
二、互补NPN和PNP功率三极管选型及应用介绍
在互补NPN和PNP功率三极管组成的推挽电路中，必须采用互补的NPN三极管和PNP三极管组成推挽输出电路，这两个三极管的功率等级和各种电气参数必须一致匹配。电路中采用的供电电压大于12VDC，匹配阻抗为47Ω，因此三极管的额定电流必须大于0.25A，并且具有较强的驱动能力；而且必须符合工业级工作温度要求，最少达到-25℃~85℃的温度要求。互补NPN和PNP功率三极管组成的推挽电路的基本要求如下：
1）互补NPN和PNP功率三极管电气参数保持一致；
2）提供足够大的瞬态功率或瞬时电流，满足推挽电路功率放大输出；
3）尽可能小的输入输出延迟时间，以提高工作效率；
4）封装尺寸要小，功率密度要大，适合PCB设计。
在半导体三极管器件中，参数完全一致的能作为互补的NPN和PNP三极管不多，其中Central Semi公司的CJD41C和CJD42C分别是NPN型和PNP型功率晶体管，两者可构成互补型功率晶体管；这两种功率晶体管都采用标准封装DPAK设计，封装尺寸小，功率密度大，非常适用于推挽电路设计。
为了能够显示出Central Semi公司的CJD41C和CJD42C的电气参数优势，与另一厂家的NPN和PNP三极管BC846B和BC856B的电气参数做对比。
图3互补NPN和PNP功率三极管电气参数对比
通过Central Semi公司的互补NPN和PNP功率三极管CJD41C和CJD42C与另一厂家三极管BC846B和BC856B的电气参数做对比，可以看出两者都满足永磁电机信号采集电路的设计要求，可作为推挽电路中的晶体管使用。但时三极管CJD41C和CJD42C的电压、电流、工作温度以及热阻都比较有优势，而且能够具有更大的裕量，可以避免永磁电机控制过程中出现超调带来的电压尖峰风险，因此综合考虑选用Central Semi公司的互补NPN和PNP功率三极管CJD41C和CJD42C作为永磁电机信号采集推挽电路晶体管使用。
三、互补NPN和PNP功率三极管的推挽电路原理图及PCB设计
在永磁电机控制器信号采集放大推挽电路原理图和PCB如图4所示，Central Semi公司的CJD41C和CJD42C分别是NPN型和PNP型功率晶体管构成互补型功率晶体管，供电电压采用24VDC，匹配电阻大小为4.99Ω，其功率等级完全满足要求。而且CJD41C和CJD42C的封装形式为标准封装DPAK设计，不用自己画封装，封装尺寸小，功率密度大，能够提供足够大的瞬态功率或瞬时电流，满足推挽电路功率放大输出要求。
图4永磁电机控制器信号采集推挽放大电路原理图和PCB
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胖哥 Lv8. 研究员 2018-11-13很好的资料，学习了 -
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snake Lv4. 资深工程师 2018-11-08对三极管选型很有帮助 -
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常常 Lv7. 资深专家 2018-11-08学习了 -
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冰点咖啡 Lv5. 技术专家 2018-11-07学习了 -
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独角兽 Lv9. 科学家 2018-11-07不错 -
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用户40154664 Lv6. 高级专家 2018-11-07学习 -
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珍珍 Lv7. 资深专家 2018-11-05学习 -
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小凡 Lv4. 资深工程师 2018-11-05不错 -
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自信 Lv5. 技术专家 2018-11-03学习 -
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飞熊 Lv6. 高级专家 2018-11-02不错，学习了
正在努力加载……相关推荐
【选型】扬杰科技NPN晶体管BC846BW可兼容TYSEMI的BC846BW，电气参数中仅低温存储温度不同
在反激开关电源项目中，若系统电气参数相同，扬杰科技NPN晶体管BC846BW可对TYSEMI的BC846BW进行功能性兼容。除了低温存储差异外，二者的电气参数极限值相同，管脚定义一致，PCB封装相差不大。在相关产品设计中，可选择扬杰科技NPN晶体管BC846BW进行功能性兼容是一个不错的选择。
器件选型 发布时间 : 2022-04-21
Central Semiconductor（中央半导体） 贴片式分立半导体选型指南
目录- Part Number Index Small Signal Transistors MOSFETs Bipolar Power Transistors Diodes Protection Devices Rectifiers Thyristors Multi Discrete Modules Package Mechanical Specifications
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型号- CMDZ10L,1N4743A,SA13CA,CMZ5935B,1N4743D,1N4743C,1N5989B,TIP100,CMPD2003,CMDZ10V,MPS3702,TIP106,1SMC82A,CMDZ11L,1N4742A,2N3251,CMZ5936B,1N4742C,1N4742D,1.5CE12CA,CZT2222A,MPSA42 TRE,CZR1-04,1N5988B,TIP110,TIP111,BC808-40,TIP112,TIP115,TIP116,BZX55C8V2,TIP117,CPR3-100,BZX79C5V1,2N5461,1N4745A,1N4745C,2N5460,CMDZ12L,CMZ5933B,P6KE18CA,1.5CE47CA,BSV52,CZ5358B,TIP120,TIP121,TIP122,CMHZ5229B,TIP125,BU407D,TIP126,BZX79C5V6,TIP127,1N5280B,1N4746A,1N4744A,CMDZ13L,CMZ5934B,SA7.0CA,1N4744D,2N4126,2N5458,2N4125,2N5459,BSV64,2N5457,CMPD6263S,2N4124,2N4123,CZ5359B,CR16UD-02FP,TIP131,CMHZ5228B,CMPD6263A,BU406D,CMPD6263C,SA48CA,BCX70H,BSW68A,BCX70J,BCX70K,CMMZ4730A,CMDZ5251B,2N5401,2N6732,2N6730,2N5400,2N5884,2N6731,BCX70G,2N5882,BZX85C33,2N6729,BZX85C30,CZ5356B,2N2369,2N6727,2N6728,2N6725,2N6726,CMZ5931B,1N4748A,CMPT404A,BZX85C36,CMHZ5227B,1N5281B,1.5CE8.2CA,P6KE8.2CA,CMZ5932B,2N6724,1.5CE56CA,CMDZ5250B,MPQ6100A,BZX85C43,2N6718,CZ5357B,2N6716,2N6717,2N6714,2N6715,BZX85C47,1N4747A,CMHZ5226B,CBCX68,CBCX69,BSV17,BSW66A,1N4701C,BZX49C6V2,BC182,BZX49C6V8,BC808-16,BZX85C12,BZX85C10,CZ5354B,2N5416,1N1189A,BZX85C16,CMHZ5225B,BZX85C15,BZX85C13,BSW67A,2N5415,BC808-25,1N1188A,BZX85C22,CZ5355B,1SMC7.5A,CMPZ5262B,CMZ5930B,BZX85C27,1N4749A,CMHZ5224B,BZX85C24,BC558B,BC558C,CMDZ5255B,CMMZ4734A,P6KE36CA,1N1187A,1N6000B,CMHZ5223B,BZX84C9V1,BZX85C75,BC557B,CPR3F-020,CMDZ5254B,CMMZ4733A,2N5830,1.5CE16CA,BC177,1N1186A,CMHZ5222B,BZX85C82,BC860C,BC860A,BC860B,1N5240B,1N5240D,BC556B,CMDZ5253B,CMMZ4732A,BZX85C56,CMHZ5221B,BFX85,CJD200,BFX84,1N6002B,BCX71J,BCX71K,CMMZ4731A,CMDZ5252B,1SMC7.0A,BCX71G,BCX71H,1N6001B,BZX85C62,1N1184A,CMDZ5259B,CMPD2838,1N5242B,1SMC45A,CMMZ4738A,CMPD2836,BCY79-IX,CMHZ5267B,1N1183A,1N6004B,CMDZ5258B,1N5241B,CMMZ4737A,1N960B,1N6003B,CMHZ5266B,1N4707C,CMDZ5257B,1N5244B,1N961B,CMMZ4736A,MPS2369A,CMHZ5265B,2N3635,BC107,2N3637,BC109,BC108,CMDZ8V2,1N6006B,BC559B,BC559C,1N5243B,CMDZ5256B,MPQ3725,1.5CE91CA,BCY59Z/01,1N962B,BDX54B,CMMZ4735A,P6KE27CA,CMR1U-04,CMHZ5264B,CMR1U-06,1N4006GPP,CMHZ4712,MPSA92,BZX85C7V5,1N6005B,MPSA96,1N5246D,BCY65/IX,SA150CA,1N963B,1N5246B,BZX84C5V6,2N2846,1N5283,1N5285,BZX84C5V1,1N5284,1N5287,1N5286,1N6008B,CLL5256B,1N5289,CR20-100R,BCY65/VII,1N5288,MPSA77,1N746A,1N5245B,1N964B,CMMZ4729A,1N5290,1N5292,1N5291,1N5294,1N5293,BFX34,1N5296,1N5295,1N5298,MPSA70,CLL5255B,1N5297,1N5299,MPSA75,1N6007B,CMPZ5227B,CMDZ5249B,1N965B,1N747A,1N5248B,1N5248D,BCW70,BCW72,BCW71,BC547,1.5CE110CA,BC546,BC549,CLL5254B,BC548,MPSA62,CMDZ5248B,MPSA56,CMPZ5226B,1N748A,MPSA55,1N966B,1N5247B,BC550,CPR3F-080,2N2857,BCY79-VII,BC556,2N3700,BCW89,BC558,BC557,1N6009B,2N2907A,CLL5253B,1N749A,2N5087,2N5088,MPQ2369,MPSA44,2N5086,CMPZ5229B,1N967B,CR3U-020GPP,PN4250A,2N5089,CMDZ8L2,P6KE100CA,2N2906A,BC161-16,CPR3-080,MPSA42,BC161-10,BCX38B,CLL5252B,BCX38C,CMPZ5228B,1N968B,CPR3F-060,1N5249B,2N2905A,BCW69,CLL5251B,1N969B,MPSA27,MPSA25,MPSA29,MPQ2222A,BCW30,BCW32,BCW31,2N2904A,1N5991B,MPSA20,CLL5250B,MPQ6700,MPSA13,BZX85C3V6,MPSA12,BZX85C3V3,MPSA14,CPR3F-040,MPSA18,1N5990B,1N5990C,BZX85C3V9,MPSA06,CMPT4401,MPSA05,CXR1-04C,P6KE62CA,CZ5364B,1N5993B,1N5993D,CMPT4403,CMPZ5265B,BCY59/X-M,CZ5365B,1N5992B,1N5992D,BCW29,2N5064,BC337-25,1.5CE43CA,2N5061,2N5062,2N5060,CZ5362B,1N5995B,PN2369A,PN2484,2N6386,CLL4150,BC337-16,2N6383,CZ5363B,UF4007,2N6387,2N6388,1N5994B,CMZ5939B,2N5484,MPS8599,MPS8598,1N4751A,BC141-16,CZ5360B,BC337-40,2N5485,1N5997B,P6SMB170A,1N4750A,CZ5361B,1N5996B,CR20-010R,BC141-10,1N4753A,CMZ5937B,CLL5259B,CJD50,1N5999B,BZX55C3V3,2N5494,CMZ5938B,2N5492,P6KE62,CLL5258B,2N5490,1N4752A,BZX55C3V0,1.5CE30CA,BC808-40W,2N5496,1N5998B,BSV16-16,CLL5257B,BSV16-10,BZX55C3V6,BZX55C3V9,BZX49C24,1N4755A,SA36CA,BZX49C27,BZX49C3V3,BZX49C3V6,P6KE170CA,2N4236,BZX49C3V9,2N4235,2N4238,2N4237,2N4234,CZ5348B,BZX49C30,BZX49C33,BZX49C13,2N5550,BZX49C15,BZX49C16,1N4754A,BZX49C18,2N5555,2N5551,CZ5349B,BSX47-10,BZX49C20,BZX49C22,SA14CA,1.5CE24CA,2N6431,BCX2 0,CZ5346B,2N6428,1.5CE7.5CA,1N4758A,1N4756A,2N6426,2N6427,CR20-080R,1.5CE9.1CA,CZ5347B,2N4239,BZX55C9V1,1N4757A,CMMZ4742A,CZ5344B,CMHZ5239B,BZX79C4V7,CMMZ4741A,1.5CE33CA,BC238A,2N2484,CZ5345B,1N4759A,CMHZ5238B,1N4448,1SMC51A,CMMZ4740A,BC237C,BC237B,BC237A,1.5CE68CA,1.5CE150CA,2N4209,1N6010B,CZ5342B,1N5300,2N3866A,1N5302,1N5301,1N5304,CMHZ5237B,1N5303,1N5306,1N5305,1N5308,1N5307,1N5309,1.5CE11CA,MJ4502,CRSH1-4,CZ5343B,1N5311,1N5310,CMHZ5236B,1N5313,1N5312,1N5314,1N5250B,BC546A,BC546B,CMDZ5243B,BZX49C7V5,CMMZ4746A,1N6012B,1SMB160A,CLL5260B,CMDZ7V5,CMHZ5235B,CPR3-040,CMDZ5242B,CMMZ4745A,2N5952,BC109C,P6KE24CA,BC109B,1N750A,1N6011B,CMHZ5234B,1N5252B,MPS8099,MPS8098,CMDZ5241B,CMMZ4744A,1N751A,BC108C,1N5916B,BC108B,BC108A,1SMC6.5A,1N6014B,CMHZ5233B,2N3799,CPR3-060,SA18CA,1N5251B,MJ900,CMMZ4743A,CMDZ5240B,1N752A,BC107B,BC107A,1N5915B,1N970B,CMHZ5232B,1N6013B,1.5CE200CA,CMDZ5247B,1N5254B,BDX87C,2N2894,2N2896,1N753A,CMPTH10,P6KE15CA,1N971B,CMHZ5231B,BZX79C8V2,1N6016B,CPR3F-100,BC549B,BC549C,CMDZ5246B,BZX85C8V2,1N5253B,1N972B,1SMC58A,1N754A,CMMZ4749A,BFY90,CMPT3906,CMPT3904,CMHZ5230B,1N6015B,BC548A,BC548B,BC548C,CMDZ524
Central Semiconductor（中央半导体）双极型功率晶体管选型指南
型号- 7090L,7120,CZTUX87,47,42C,CZT32C,3120,CMPT491E,350,CJD41C,A44HC,CTLT853-M833S,CZT7090LE,112,CJD340,CZT853,117,953,955,13003,50,5338,44H11,CJD3055,CXT853,31C,CZT31C,3055,2680,CZT7090L,CMPT591E,CJD42C,2955,7090LE,122,200,45H11,CJD112,127,CJD350,CXT3090L,CZT127,CJD2955,CTLT953-M833S CXT953,CZT122,CZT3150,CJD117,591E,32C,UX87,CJD50,CMXT7090L,CZT953,CZT955,CZT3090LE,CZT5338,CJD31C,210,CJD45H11,CJD200,CJD47,CJD122,CZT3120,853,CZT7120,CXT3150,CXT491E,CMLT591E,CJD127,CJD32C,491E,41C,CZT3090L,CZT2955,3090LE,3150,340,CJD210,CXT591E,CZT2680,CZT3055,CXT7090L,CJD13003,CMLT491E,CZTA44HC,3090L
Small signal transistors manufactured in the SOT-323 Case Product / Process Change Notice (PCN # 247)
型号- BC856AW,BC857BW,BC857AW,BC846AW,BC847BW,BC846BW,BC856BW,BC847CW,BC857CW,BC847AW
【产品】可互补NPN型和PNP型功率晶体管，DPAK标准贴片封装
Central Semi推出的CJD41C和CJD42C分别是NPN型和PNP型功率晶体管，两者可构成互补型功率晶体管；这两种功率晶体管都采用标准封装DPAK设计，封装尺寸小，功率密度大，非常适用于电源、放大器和高速开关应用。 CJD41C和CJD42C功率晶体管的额定功率损耗为1.75W，集射基电压最大100V，该系列晶体管的工作温度范围为-65°C到+150°C，热阻为6.25℃/W。
新产品 发布时间 : 2018-06-26
【应用】N沟道功率MOSFET CMPDM303NH和NPN晶体三极管CXT3150， 为太阳能系统提供解决方案
Central提供的分立式半导体必须具有极高的能源效率，同时消耗最少的功率。DC-DC变换器电路采用Buck电路，由电感、二极管和开关器件构成， 开关器件通常需采用低压器件，可选取MOSFET和晶体三极管。据此，本方案推荐采用Central的N沟道功率MOSFET ——CMPDM303NH和NPN晶体三极管——CXT3150，为太阳能系统提供解决方案。
应用方案 发布时间 : 2019-06-12
DPAK CASE CJD41C NPN CJD42C PNP SURFACE MOUNT SILICON COMPLEMENTARY POWER TRANSISTORS
型号- PNP,NPN,CJD41C,CJD42C
PDN01180 transistors Product End of Life Notification
型号- CJD112 TR13,CJD13003 TR13,CJD50 TR13,CJD41C TR13,CJD122 BK,CJD13003 BK,CJD32C TR13,CJD41C,CJD42C TR13,CJD200 TR13,CJD45H11 TR13,CJD350 TR13,CJD117 TR13,CJD41C BK,CJD44H11 TR13,CJD50 BK,CJD31C TR13,CJD47 TR13,CJD13003,CJD340 TR13,CJD122 TR13,CJD3055 TR13,CJD2955 TR13,CJD127 TR13
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可定制波导隔离器频率覆盖5.5GHz~110GHz，插损损低至0.25dB、隔离度、正向方向功率、封装尺寸参数。
最小起订量： 1pcs 提交需求>
提供全面表征产品器件耗电特征及功耗波形、快速瞬态效应、电源优化、表征和仿真测试服务，使用直流电源分析仪测量精度达50µV，8nA，波形发生器带宽100kHz，输出功率300W，示波器200kHz，512 kpts
实验室地址： 深圳/苏州 提交需求>
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