Diodes了解EMI有助于为汽车应用做出明智的决策
了解EMI有助于设计人员在为汽车应用选择开关转换器时做出明智的决策
电磁干扰(EMI)是多个市场产品中使用的快速开关电源转换器的一个问题。在一个系统中符合法规要求的转换器可能不会自动在另一个系统中符合法规要求。此外,为了符合法规要求,可能需要进行EMI滤波,这可能是整个系统尺寸、体积和成本的重要组成部分,因此了解适用于不同应用的标准至关重要。本文首先回顾开关转换器的电磁干扰来源和类型,然后解释工业和汽车市场产品监管标准之间的差异。最后,它展示了Diodes百利通亚陶晶振为使其DC-DC开关转换器之一符合严格的汽车标准而采用的技术。
开关转换器中的电磁干扰来源
传导发射的EMI标准
消费者
产业的
汽车的
汽车辐射发射的电磁干扰标准
汽车应用兼容型DC-DC降压转换器
结论
编码 | 晶振厂家 | 频率 | 描述 | 系列 | 频率稳定性 |
FL2500123Z | Diodes晶振 | 25MHz | CRYSTAL 25.0000MHZ 20PF SMD | FL | ±50ppm |
FL2500316Z | Diodes晶振 | 25MHz | CRYSTAL 25.0000MHZ 20PF SMD | FL | ±20ppm |
FL2400022 | Diodes晶振 | 24MHz | CRYSTAL 24.0000MHZ 10PF SMD | FL | ±10ppm |
FL2500133 | Diodes晶振 | 25MHz | CRYSTAL 25.0000MHZ 18PF SMD | FL | ±20ppm |
FL1200112 | Diodes晶振 | 12MHz | CRYSTAL 12.0000MHZ 18PF SMD | FL | ±30ppm |
FW2500022Q | Diodes晶振 | 25MHz | CRYSTAL 25.0000MHZ 20PF SMD | FW | ±25ppm |
FY0800018 | Diodes晶振 | 8MHz | CRYSTAL 8.0000MHZ 18PF SMD | FY | ±30ppm |
FH1200001 | Diodes晶振 | 12MHz | CRYSTAL 12.0000MHZ 20PF SMD | FH | ±30ppm |
FW2500025Z | Diodes晶振 | 25MHz | CRYSTAL 25.0000MHZ 20PF SMD | FW | ±30ppm |
US3200005Z | Diodes晶振 | 32MHz | CRYSTAL 32.0000MHZ 8PF SMD | US | ±10ppm |
FL2400097 | Diodes晶振 | 24MHz | CRYSTAL 24.0000MHZ 9PF SMD | FL | ±15ppm |
FL1200138 | Diodes晶振 | 12MHz | CRYSTAL 12.0000MHZ 8PF SMD | FL | ±50ppm |
FL4000157Z | Diodes晶振 | 40MHz | CRYSTAL 40.0000MHZ 15PF SMD | FL | ±10ppm |
FL3840006 | Diodes晶振 | 38.4MHz | CRYSTAL 38.4000MHZ 10PF SMD | FL | ±10ppm |
FL4000205Z | Diodes晶振 | 40MHz | CRYSTAL 40.0000MHZ 10PF SMD | FL | ±10ppm |
FL1920031 | Diodes晶振 | 19.2MHz | CRYSTAL 19.2000MHZ 8.5PF SMD | FL | ±10ppm |
FL3200037 | Diodes晶振 | 32MHz | CRYSTAL 32.0000MHZ 8PF SMD | FL | ±15ppm |
FL3840015Z | Diodes晶振 | 38.4MHz | CRYSTAL 38.4000MHZ 10PF SMD | FL | ±10ppm |
FW374WFBR2 | Diodes晶振 | 37.4MHz | CRYSTAL 37.4000MHZ 16PF SMD | FW | ±10ppm |
FY2500117 | Diodes晶振 | 25MHz | CRYSTAL 25.0000MHZ 18PF SMD | FY | ±20ppm |
FL5000058Z | Diodes晶振 | 50MHz | CRYSTAL 50.0000MHZ 10PF SMD | FL | ±15ppm |
FY0800027 | Diodes晶振 | 8MHz | CRYSTAL 8.0000MHZ 18PF SMD | FY | ±20ppm |
FH1600015 | Diodes晶振 | 16MHz | CRYSTAL 16.0000MHZ 8PF SMD | FH | ±10ppm |
FH1200004 | 贴片晶振 | 12MHz | CRYSTAL 12.0000MHZ 12PF SMD | FH | ±15ppm |
FW520WFMT1 | Diodes晶振 | 52MHz | CRYSTAL 52.0000MHZ 12PF SMD | FW | ±17ppm |
GC1600048 | Diodes晶振 | 16MHz | CRYSTAL 16.0000MHZ 16PF SMD | GC | ±30ppm |
GC0400058 | Diodes晶振 | 4MHz | CRYSTAL 4.0000MHZ 16PF SMD | GC | ±30ppm |
FL1600087 | Diodes晶振 | 16MHz | CRYSTAL 16.0000MHZ 20PF SMD | FL | ±15ppm |
FL400WFMR1 | Diodes晶振 | 40MHz | CRYSTAL 40.0000MHZ 10PF SMD | FL | ±10ppm |
FL2400081 | Diodes晶振 | 24MHz | CRYSTAL 24.0000MHZ 18PF SMD | FL | ±30ppm |
FL1000002 | Diodes晶振 | 10MHz | CRYSTAL 10.0000MHZ 12PF SMD | FL | ±25ppm |
FL2500047 | Diodes晶振 | 25MHz | CRYSTAL 25.0000MHZ 18PF SMD | FL | ±20ppm |
FL520WFMT1 | Diodes晶振 | 52MHz | CRYSTAL 52.0000MHZ 12PF SMD | FL | ±17ppm |
FL1200060 | Diodes晶振 | 12MHz | CRYSTAL 12.0000MHZ 18PF SMD | FL | ±30ppm |
FH1220004 | Diodes晶振 | 12.288MHz | CRYSTAL 12.2880MHZ 20PF SMD | FH | ±20ppm |
FL2700102Z | Diodes晶振 | 27MHz | CRYSTAL 27.0000MHZ 12PF SMD | FL | ±30ppm |
FW1600010 | Diodes晶振 | 16MHz | CRYSTAL 16.0000MHZ 8PF SMD | FW | ±20ppm |
FL2500283Z | Diodes晶振 | 25MHz | CRYSTAL 25.0000MHZ 20PF SMD | FL | ±30ppm |
FL4800063Z | Diodes晶振 | 48MHz | CRYSTAL 48.0000MHZ 8PF SMD | FL | ±15ppm |
FW4000025Q | Diodes晶振 | 40MHz | CRYSTAL 40.0000MHZ 10PF SMD | FW | ±50ppm |
FW2000016Q | Diodes晶振 | 20MHz | CRYSTAL 20.0000MHZ 10PF SMD | FW | ±50ppm |
FW2500039Q | Diodes晶振 | 25MHz | CRYSTAL 25.0000MHZ 18PF SMD | FW | ±30ppm |
FH2400015 | Diodes晶振 | 24MHz | CRYSTAL 24.0000MHZ 18PF SMD | FH | ±25ppm |
FH4800014 | Diodes晶振 | 48MHz | CRYSTAL 48.0000MHZ 10PF SMD | FH | ±10ppm |