Very low cost, low component count charger/adapter – replaces linear transformer based solutions • Extremely simple circuit configuration designed for high volume, low cost manufacturing
标签: transformer low component solutions
上传时间: 2017-03-27
上传用户:2404
Very low cost, low component count charger/adapter – replaces linear transformer based solutions • Extremely simple circuit configuration designed for high volume, low cost manufacturing
标签: transformer low component solutions
上传时间: 2017-03-27
上传用户:lps11188
Tigerjet Hardware SDK USB adapter
标签: Tigerjet Hardware adapter SDK
上传时间: 2013-12-24
上传用户:koulian
实用电子技术专辑 385册 3.609GGY7501A GY7512 USB-I2C adapter 产品使用说明书 15页 0.3M.pdf
标签:
上传时间: 2014-05-05
上传用户:时代将军
USBCAN-Mini-USB-to-CAN-adapter-User-Manual
标签: usb
上传时间: 2022-02-04
上传用户:
台达PFC反激同步整流的adapter原理图。
上传时间: 2022-06-13
上传用户:
MSP430USB仿真器制作资料+430JTAG简版仿真器+利尔达- 轻松制作MSP430 JTAG adapter+制作的单面板的MSP430JTAG仿真器 几套430JTAG制作方案,做不好你找我........
上传时间: 2013-07-26
上传用户:liaofamous
AC/DC适配器(adapter)高频电子变压器的设计有很多制约条件,比如空间体积、热的问题、转换器的效率、电磁干扰、PWM控制IC、性价比等。所以磁心选用受到一定的限制,不像一般资料中介绍的满足功率容量即可,选择的余地不大。所以本文不讲解具体的磁心选择,仅利用计算软件对磁心的功率容量进行校验。目前与NOTEBOOK和LCD配套的中高档adapter工作频率在60KHz~100KHz左右。变压器的绕组已用上了三重绝缘线,再要做小变压器已经有难度。我们知道小型化开关变压器有两种方法:一、提高开关频率,带来的问题是对EMI的控制有一定难度;二、选用更高饱和磁通密度的磁心材料,如TDK公司的PC95和PE33 见表(1)。如果在100℃时Bsat能达到450mT~500mT,那么我们在设计开关变压器时就能使用更少的圈数,减少铜损,同时又能提高初级绕组的电感量,降低峰值电流,减少开关管的能量损耗,从而减少开关变压器的体积,进一步地实现adapter的小型化。
上传时间: 2013-08-04
上传用户:bjgaofei
經由改變外部閘極電阻(gate resistors)或增加一個跨在汲極(drain)和源極(source)的小電容來調整MOSFET的di/dt和dv/dt,去觀察它們如何對EMI產生影響。然後我們可了解到如何在效率和EMI之間取得平衡。我們拿一個有著單組輸出+12V/4.1A及初級側MOSFET AOTF11C60 (αMOSII/11A/600V/TO220F) 的50W電源轉接器(adapter)來做傳導性及輻射性EMI測試。
上传时间: 2014-09-08
上传用户:swing
Linear Technology offers a variety of devices that simplifyconverting power from a USB cable, but the LTC®3455represents the highest level of functional integration yet. The LTC3455 seamlessly manages power flowbetween an AC adapter, USB cable and Li-ion battery,while complying with USB power standards, all from a4mm × 4mm QFN package. In addtion, two high efficiencysynchronous buck converters generate low voltage railswhich most USB-powered peripherals require. TheLTC3455 also provides power-on reset signals for themicroprocessor, a Hot SwapTM output for poweringmemory cards as well as an uncommitted gain blocksuitable for use as a low-battery comparator or an LDOcontroller. The PCB real estate required for the entire USBpower control circuit and two DC/DC converters is only225mm2.
上传时间: 2013-11-02
上传用户:名爵少年