选择性催化还原系统（SCR）

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选择性催化还原（SCR）是将氮氧化物（NOx）转化为双原子氮和水以及少量二氧化碳的化学过程。通过添加汽车级尿素（称为柴油机尾气处理液（DEF）或商业品牌如AdBlue和Bluetech），将柴油引擎的有害NOx排放转化为无害的氮和水，从而促进了这一过程。

SCR模块控制泵从储罐中抽出DEF，并用适当的计量阀将其注入柴油机废气中。为了优化燃油效率，在催化还原过程之后使用气体传感器，然后将气体传感器的信息输送到柴油引擎ECU，后者将该信息与引擎状态相结合，向SCR单元提供有关待释放的正确DEF液体量的准确信息。

我们为常用的无刷直流（BLDC）电机提供一系列三相栅极驱动器和功率MOSFET，以及SPC5 32位微控制器和带有调压器和CAN与LIN接口IC的专用电源管理IC，从而简化高效解决方案的设计过程。

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应用手册 (5 of 9)

	Resource title	Latest update
PDF	AN604 Calculation of conduction losses in a power rectifier 3.2	24 Mar 2020	24 Mar 2020 AN604 Calculation of conduction losses in a power rectifier 3.2
PDF	AN4021 Calculation of reverse losses in a power diode 1.0	24 Mar 2020	24 Mar 2020 AN4021 Calculation of reverse losses in a power diode 1.0
PDF	AN4381 Current sharing in parallel diodes 1.0	24 Mar 2020	24 Mar 2020 AN4381 Current sharing in parallel diodes 1.0
PDF	AN1453 NEW FAMILY OF 150V POWER SCHOTTKY 1.1	24 Mar 2020	24 Mar 2020 AN1453 NEW FAMILY OF 150V POWER SCHOTTKY 1.1
PDF	AN5046 Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages 4.0	24 Mar 2020	24 Mar 2020 AN5046 Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages 4.0
PDF	AN5088 Rectifiers thermal management, handling and mounting recommendations 2.0	24 Mar 2020	24 Mar 2020 AN5088 Rectifiers thermal management, handling and mounting recommendations 2.0
PDF	AN533 SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting 3.6	24 Mar 2020	24 Mar 2020 AN533 SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting 3.6
PDF	AN443 SERIES OPERATION ON FAST RECTIFIERS 2.1	24 Mar 2020	24 Mar 2020 AN443 SERIES OPERATION ON FAST RECTIFIERS 2.1
PDF	AN869 Tj max limit of Schottky diodes 2.2	24 Mar 2020	24 Mar 2020 AN869 Tj max limit of Schottky diodes 2.2

简报 (1)

	Resource title		Latest update
PDF	ST Analog Products for Automotive applications 11.2017		25 Mar 2020	25 Mar 2020 ST Analog Products for Automotive applications 11.2017

选型指南 (1)

	Resource title		Latest update
PDF	Automotive powertrain and safety ICs 1.0		02 Apr 2020	02 Apr 2020 Automotive powertrain and safety ICs 1.0

白皮书 (1)

	Resource title		Latest update
PDF	STMicroelectronics enables electronic control of the next generation of Gasoline Direct Injection (GDI) engines. 1.0		02 Apr 2020	02 Apr 2020 STMicroelectronics enables electronic control of the next generation of Gasoline Direct Injection (GDI) engines. 1.0

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产品型号	状态	描述	类型	供应商
SEL-SPC5	批量生产	Micro 32位Power Architecture产品的智能选择器	汽车选择器	--	SEL-SPC5 描述: Micro 32位Power Architecture产品的智能选择器

查找器App

产品型号	状态	描述	类型	供应商
ST Diode Finder	批量生产	用于安卓和iOS的二极管产品查找应用	查找器App	ST	ST Diode Finder 描述: 用于安卓和iOS的二极管产品查找应用

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Volt. Min V This option is required. And must be less than or equal to Volt. Max [V]

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