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Step-up

  • OCP3601 Step-up DCDC Controller

    The OCP3601 is a boost topology switching regulator control IC for battery-used applications fiel

    标签: Controller Step-up 3601 DCDC

    上传时间: 2013-06-11

    上传用户:2780285129

  • 利用数字电位器调整并校准升压型DC-DC转换器

    The purpose of this application note is to show an example of how a digital potentiometer can be used in thefeedback loop of a Step-up DC-DC converter to provide calibration and/or adjustment of the output voltage.The example circuit uses a MAX5025 Step-up DC-DC converter (capable of generating up to 36V,120mWmax) in conjunction with a DS1845, 256 position, NV digital potentiometer. For this example, the desiredoutput voltage is 32V, which is generated from an input supply of 5V. The output voltage can be adjusted in35mV increments (near 32V) and span a range wide enough to account for resistance, potentiometer and DCDCconverter tolerances (27.6V to 36.7V).

    标签: DC-DC 数字电位器 升压型 校准

    上传时间: 2014-12-23

    上传用户:781354052

  • 寄生电容在升压变压器中的设计应用

    One of the most critical components in a Step-up design like Figure 1 is the transformer. Transformers have parasitic components that can cause them to deviate from their ideal characteristics, and the parasitic capacitance associated with the secondary can cause large resonating current spikes on the leading edge of the switch current waveform.

    标签: 寄生电容 升压变压器 中的设计

    上传时间: 2013-11-22

    上传用户:15070202241

  • 隔离电源设计手册

    Abstract: This document details the Oceanside (MAXREFDES9#) subsystem reference design, a 3.3V to 15V input,±15V (±12V) output, isolated power supply. The Oceanside design includes a high-efficiency Step-up controller, a36V H-bridge transformer driver for isolated supplies, a wide input range, and adjustable output low-dropout linearregulator (LDO). Test results and hardware files are included.  

    标签: 隔离电源 设计手册

    上传时间: 2013-10-12

    上传用户:jinyao

  • 电感开关稳压器提高输入电压

    Abstract: Uses the MAX641 switching controller and an external discrete charge pump to step up the input voltage. This circuitcan service low loads and is efficient when the output is two, three, four times the input voltage. Adding the MAX627 MOSdriver can further increase the output current capability.

    标签: 电感 开关稳压器 输入电压

    上传时间: 2013-11-15

    上传用户:zwei41

  • DN436微型全桥压电马达驱动器

      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, including a Step-up converter and an oversizedgeneric full-bridge drive IC. The resulting high componentcount and large board space are especially problematicin the design of cameras for ever shrinking cell phones.The LT®3572 solves these problems by combining aStep-up regulator and a dual full-bridge driver in a 4mm× 4mm QFN package. Figure 1 shows a typical LT3572Piezo motor drive circuit. A Step-up converter is usedto generate 30V from a low voltage power source suchas a Li-Ion battery or any input power source within thepart’s wide input voltage range of 2.7V to 10V. The highoutput voltage of the Step-up converter, adjustable upto 40V, is available for the drivers at the VOUT pin. Thedrivers operate in a full-bridge fashion, where the OUTAand OUTB pins are the same polarity as the PWMA andPWMB pins, respectively, and the OUTA and OUTB pinsare inverted from PWMA and PWMB, respectively. TheStep-up converter and both Piezo drivers have their ownshutdown control. Figure 2 shows a typical layout

    标签: 436 DN 全桥 压电

    上传时间: 2013-11-18

    上传用户:hulee

  • GPON系统的APD偏置解决方案

      Avalanche photo diode (APD) receiver modules arewidely used in fi ber optic communication systems. AnAPD module contains the APD and a signal conditioningamplifi er, but is not completely self contained. It stillrequires signifi cant support circuitry including a highvoltage, low noise power supply and a precision currentmonitor to indicate the signal strength. The challenge issqueezing this support circuitry into applications withlimited board space. The LT®3482 addresses this challengeby integrating a monolithic DC/DC Step-up converter andan accurate current monitor. The LT3482 can supportup to a 90V APD bias voltage, and the current monitorprovides better than 10% accuracy over four decades ofdynamic range (250nA to 2.5mA).

    标签: GPON APD 方案

    上传时间: 2014-01-18

    上传用户:wenyuoo

  • XL6003 300KHz 36V Boost 3W LED

    The XL6003 regulator is fixed frequency PWM Boost (Step-up) DC/DC converter, capable ofdriving 1050mA load current with excellent line and load regulation. The regulator is simple to use because it includes internal frequency compensation and a fixed-frequency oscillator so that it requires a minimum number of external components to work. The XL6003 could directly drive 5~10 3W LED units at VIN=12V.

    标签: Boost 6003 300 36V

    上传时间: 2013-11-07

    上传用户:xy@1314

  • MAX1771

    12V or Adjustable, High-Efficiency,Low IQ, Step-up DC-DC Controller

    标签: 1771 MAX

    上传时间: 2016-10-20

    上传用户:oyjwle

  • PW5200系列_2.0.pdf规格书下载

    The PW5200A/ PW5200C is high efficiency synchronous, PWM Step-up DC/DC converters optimizedto provide a high efficient solution to medium power systems. The devices work with a 1.4MHz fixedfrequency switching. These features minimize overall solution footprint by allowing the use of tiny,low profile inductors and ceramic capacitors. Automatic PWM/PFM mode switching at light loadsaves power and improves efficiency

    标签: pw5200

    上传时间: 2022-02-11

    上传用户: