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电源技术  DN436微型全桥压电马达驱动器

&nbsp; Piezoelectric motors are used in digital cameras for autofocus,zooming and optical image stabilization. Theyare relatively small, lightweight and effi cient, but theyalso require a complicated driving scheme. Traditionally,this challenge has been met with the use ofseparatecircuits, inclu ...

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电源技术  DN464 高效率USB电源管理系统

&nbsp; Automotive power systems are unforgiving electronicenvironments. Transients to 90V can occur when thenominal voltage range is 10V to 15V (ISO7637), along withbattery reversal in some cases. It&rsquo;s fairly straightforwardto build automotive electronics around this system, butincreasingl ...

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电源技术  如何制作使用μModule降压稳压器的输入输出电压

&nbsp; Linear Technology&rsquo;s DC/DC step-down &mu;Module&reg;regulators are complete switchmode power supplies in asurface-mount package. They include the DC/DC controller,inductor, power switches and supporting circuitry.These highly integrated regulators also provide an easysolution for app ...

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电源技术  DN452 汽车应用的电源监视器

&nbsp; The LTC&reg;4151 is a high side power monitor that includesa 12-bit ADC for measuring current and voltage, as wellas the voltage on an auxiliary input. Data is read throughthe widely used I2C interface. An unusual feature in thisdevice is its 7V to 80V operating range, allowing it to cove ...

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电源技术  离线式LED照明简述

&nbsp; As environmental concerns over traditional lighting increaseand the price of LEDs decreases, high power LEDsare fast becoming a popular lighting solution for offl ineapplications. In order to meet the requirements of offl inelighting&mdash;such as high power factor, high effi ciency, isol ...

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电源技术  自举偏置高输入电压降压型控制器

&nbsp; High voltage buck DC/DC controllers such as the LTC3890(dual output) and LTC3891 (single output) are popular inautomotive applications due to their extremely wide 4V to60V input voltage range, eliminating the need for a snubberand voltage suppression circuitry. These controllersare also w ...

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电源技术  SM发射机电源电压恒定的发射功率

  Abstract: In battery-powered RF transmitters such as garage door openers and remote keyless entry for cars, as the battery drains,

https://www.eeworm.com/dl/505/24354.html

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电源技术  电压基准的理解和应用

&nbsp; Specifying the right reference and applying it correctly isa more difficult task than one might first surmise, consideringthat references are only 2- or 3-terminal devices.Although the word &ldquo;accuracy&rdquo; is most often spoken inreference to references, it is dangerous to use this ...

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电源技术  利用高压看门狗定时器加强汽车安全系统

&nbsp; Abstract: As electronic systems take over many of the mechanical functions in a car&mdash;ranging from engine timing to steering andbraking&mdash;there is a growing concern about fault tolerance. There should not be a single point of failure that would prevent a car fromat least "limping" ...

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电源技术  延长汽车和工业应用的PowerPath电路的输入电压范围

&nbsp; The voltage range of Linear Technology&rsquo;s PowerPath&reg; circuitscan be easily extended with just a few components, thusallowing them to meet the needs of virtually all applications.This application note presents solutions for circuits thatmust withstand large negative voltages, a re ...

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