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Mosfet

金属-氧化物半导体场效应晶体管,简称金氧半场效晶体管(Metal-Oxide-SemiconductorField-EffectTransistor,Mosfet)是一种可以广泛使用在模拟电路与数字电路的场效晶体管(field-effecttransistor)。[1]Mosfet依照其“通道”(工作载流子)的极性不同,可分为“N型”与“P型”的两种类型,通常又称为NMosfet与PMosfet,其他简称上包括NMOS、PMOS等。
  • 通过分析Mosfet功耗产生机制来提高同步整流效率

    降低电源損耗,提高电源效率

    标签: Mosfet 功耗 机制

    上传时间: 2013-11-16

    上传用户:angle

  • Pspice元件库指南

    1.1_SHOT : 10个杂项器件,其中有54,74,CD的 2.7400~74S : 74系列的器件 3.AA_IGBT : IGBT是强电流、高压应用和快速终端设备用垂直功率Mosfet 4.AA_MISC : 杂项DIODE Mosfet ...............................

    标签: Pspice 元件库

    上传时间: 2013-11-03

    上传用户:familiarsmile

  • 万芯元件常用替换表

    万芯元件常用Mosfet AOS替换表

    标签: 万芯元件

    上传时间: 2013-11-01

    上传用户:comer1123

  • 新型组合式COOLMOS器件在开关电源中的应用研究

      COOLMOS ICE2A165/265/365是Infineon technologies 公司推出的系列PWM+Mosfet二合一芯片,其突出特点是由其组成的开关电源,在市电电网中工作时,无需外加散热器即可输出20~50W的输出功率;且能自动降低空载时的工作频率,从而降低待机状态的损耗;同时还具有过、欠压保护、过热保护、过流保护以及自恢复功能,因而在中小功率开关电源中有着广泛 的应用前景

    标签: COOLMOS 组合式 器件 中的应用

    上传时间: 2013-10-17

    上传用户:HGH77P99

  • 双开关正激转换器及其应用设计

    单开关(或称单晶体管)正激转换器是一种最基本类型的基于变压器的隔离降压转换器,广泛用于需要大降压比的应用。这种转换器的优点包括只需单颗接地参考晶体管,及非脉冲输出电流减小输出电容的均方根纹波电流含量等。但这种转换器的功率能力小于半桥或全桥拓扑结构,且变压器需要磁芯复位,使这种转换器的最大占空比限制在约50%。此外,金属氧化物半导体场效应管(Mosfet)开关的漏电压变化达输入电压的两倍或更多,使这种拓扑结构较难于用在较高输入电压的应用。

    标签: 双开关 正激转换器 应用设计

    上传时间: 2013-12-22

    上传用户:786334970

  • CN3052A(锂离子电池充电器)

    The CN3052A is a complete constant-current /constant voltage linear charger for single cell Li-ion and Li Polymer rechargeable batteries. The device contains an on-chip power Mosfet and eliminates the need for the external sense resistor and blocking diode.

    标签: 3052A 3052 CN 锂离子电池

    上传时间: 2013-11-10

    上传用户:子虚乌有

  • 100-15V TO 12V DCDC 原理图 PCB BOM表

    高的工作电压高达100V N双N沟道Mosfet同步驱动 The D810DCDC is a synchronous step-down switching regulator controller that can directly step-down voltages from up to 100V, making it ideal for telecom and automotive applications. The D810DCDC uses a constant on-time valley current control architecture to deliver very low duty cycles with accurate cycle-by-cycle current limit, without requiring a sense resistor. A precise internal reference provides 0.5% DC accuracy. A high bandwidth (25MHz) error amplifi er provides very fast line and load transient response. Large 1Ω gate drivers allow the D810DCDC to drive multiple Mosfets for higher current applications. The operating frequency is selected by an external resistor and is compensated for variations in VIN and can also be synchronized to an external clock for switching-noise sensitive applications. Integrated bias control generates gate drive power from the input supply during start-up and when an output shortcircuit occurs, with the addition of a small external SOT23 Mosfet. When in regulation, power is derived from the output for higher effi ciency.

    标签: DCDC 100 12V BOM

    上传时间: 2013-10-24

    上传用户:wd450412225

  • FP6291

    DC/DC 升压IC:The FP6291 is a current mode boost DC-DC converter. Its PWM circuitry with built-in 0.25 Ω power Mosfet make this regulator highly power efficient. The internal compensation network also minimizes as much as 6 external component counts. The non-inverting input of error amplifier connects to a 0.6V precision reference voltage and internal soft-start function can reduce the inrush current. The FP6291 is available in the SOT23-6L package and provides space-saving PCB for the application fields.

    标签: 6291 FP

    上传时间: 2013-11-07

    上传用户:3294322651

  • 无需检测电阻的小型DFN封装电路断路器

      Traditionally, an Electronic Circuit Breaker (ECB) comprisesa Mosfet, a Mosfet controller and a current senseresistor. The LTC®4213 does away with the sense resistorby using the RDS(ON) of the external Mosfet. The resultis a simple, small solution that offers a signifi cant lowinsertion loss advantage at low operating load voltage.The LTC4213 features two circuit breaking responses tovarying overload conditions with three selectable tripthresholds and a high side drive for an external N-channelMosfet switch.

    标签: DFN 检测电阻 封装 电路断路器

    上传时间: 2014-03-02

    上传用户:lixinxiang

  • DN460双输出降压稳压器优化效率

      The LTC3546 is a dual output current mode buck regulatorwith fl exible output current partitioning. Beyondthe advantages normally associated with dual outputregulators (reduced size, cost, EMI and part count, withimproved effi ciency), the LTC3546’s outputs can bepartitioned for either 3A and 1A outputs, or two 2A outputs.This increases its application range and simplifi esmultiple supply rail designs. A confi gurable Burst Mode®clamp for each output sets the current transition levelbetween Burst Mode operation and forced continuousconduction mode to optimize effi ciency over the entireoutput range. An adjustable switching frequency up to4MHz and internal power Mosfet switches allow forsmall and compact footprints.

    标签: 460 DN 输出 优化效率

    上传时间: 2013-11-04

    上传用户:yxgi5