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电源技术 基于无线传感器网络的生物信息检测系统节点电源设计
提出一种生物信息检测系统中无线传感器网络（WSN）节点的电源设计方案。除了通过内部3.7 V锂电池，振动产生的机械能也可以用来提供能量。系统工作过程中能自动对供电方式进行选择，并完成对锂电池的充电任务。
电源技术 高效紧凑的高压脉冲电容器恒流充电电源
基于高频谐振电路研制的高压脉冲电容器充电电源, 采用IGBT 构成电源的软开关电路和闭环变频控制充电电流的方式。对输出端负载大范围变化引起的谐振频率漂移, 采用微调开关时间, 保证了变换器开关零切换, 显著降低了导通、关断时IGBT 的损耗.
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电源技术 模块化无功补偿技术的发展及应用
在采用电容器对电网进行无功功率补偿的同时，谐波对电网造成的不利影响已是不可回避的问题，也就是说不考虑谐波的影响因素，而单纯进行无功补偿的时代已经过去，对负载系统进行无功补偿的同时，必须兼顾对谐波治理。
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电源技术 简单的电池电路扩展以太网供电(PoE)峰值电流
 
Power over Ethernet (PoE) is a new development thatallows for the delivery of power to Ethernet-based devicesvia standard Ethernet CAT5 cable, precluding the need forwall adapters or other external power sources. The PoEspecification defines a hardware detection protocol wherePower Sourci ...
电源技术 单片同步稳压器驱动外部元件负载
 
The LTC®3414 offers a compact and efficient voltage regulatorsolution for point of load conversion in electronicsystems that require low output voltages (down to 0.8V)from a 2.5V to 5V power bus. Internal power MOSFETswitches, with only 67mW on-resistance, allow theLTC3414 to deliver ...
电源技术 如何运用DC-DC升压调节器
 
便携式电子器件(如智能手机、GPS导航系统和平板电脑)的电源可以来自低压太阳能电池板、电池或AC/DC电源。电池供电系统通常将电池串联叠置以实现更高的电压，但由于空间不足，此技术未必总是可行。开关转换器使用电感的磁场来交替地存储电能，并以不同电压释放至负载。因为损耗很低，所以开关转换器是个不错的高 ...
电源技术 利用纤巧型负载点电路来简化电源电压的跟踪和排序
 
Multiple-voltage electronics systems often requirecomplex supply voltage tracking or sequencing, whichif not met, can result in system faults or even permanentfailures in the fi eld. The design diffi culties in meetingthese requirements are often compounded in distributedpowerarchitecture ...
电源技术 DN387 级联7A点的负载单片降压转换器
 
Easy-to-use and compact point-of-load power suppliesare necessary in systems with widely distributed, highcurrent, low voltage loads. The LTC®3415 provides acompact, simple and versatile solution. It includes a pairof integrated complementary power MOSFETs (32mΩtop and 25m&Omega ...
电源技术 DN385 10A高性能点的负载DC/DC微型模块
 
Advancements in board assembly, PCB layout anddigital IC integration have produced a new generationof densely populated, high performance systems. Theboard-mounted point-of-load (POL) DC/DC power suppliesin these systems are subject to the same demandingsize, high power and performance re ...
电源技术 两相同步降压型控制器具有轻负载逐级递减模式
 
Today’s computer, datacom, and telecom systems demandpower supplies that are effi cient, respond quicklyto load transients and accurately regulate the voltageat the load. For example, load current can be measuredby using the inductor DCR, thus eliminating the needfor a dedicated sen ...