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技术书籍 天线的好书《antenna toolkit》
·目录1. Radio signals on the move 12. Antenna basics 193. Wire, connection, grounds, and all that 494. Marconi and other unbalanced antennas 695. Doublets, dipoles, and other Hertzian antennas 876. Limit
模拟电子 Active Filters
Power conversion by virtue of its basic role produces harmonics due to theslicing of either voltages or currents. To a large extent the pollution in theutility supply and the deterioration of the power quality has been generatedor created by non-linear converters. It is therefore ironic that power c ...
电源技术 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 t ...
电源技术 DN465 超低功耗升压转换器
 
Industrial remote monitoring systems and keep-alivecircuits spend most of their time in standby mode. Manyof these systems also depend on battery power, so powersupply effi ciency in standby state is very important tomaximize battery life. The LT®8410/-1 high effi ciencyboost converte ...
单片机编程 单片机控制的铅酸蓄电池充电电源
 为了有效地提升铅酸蓄电池的使用寿命，同时实现对充电过程的监控，设计出一种用单片机控制的36 V铅酸蓄电池充电电源。本电路采用反激式拓扑，连续电流工作模式，电源管理IC设计在电源的副边，由ELAN公司的EM78P258N单片机模拟，是用可编程器件模拟电源管理IC，实现智能电源低成本化的一次成功尝试，通过对单片机的软 ...
单片机编程 基于AT89C2051的温度监控系统的设计
采用单片机AT89C2051实现温度测量与控制,键盘和显示电路实现温度的设定、修改、清零以及当前温度值的显示,并对温度超过上下限进行报警。阐述了该系统设计的硬件和软件设计。
Abstract:
 The system of temperature measuring and controling is realized based on AT89C2051.The keyboard and display circuit is d ...
单片机编程 PCA9516 5channel I2C hub
The PCA9516 is a BiCMOS integrated circuit intended forapplication in I2C and SMBus systems.While retaining all the operating modes and features of the I2Csystem, it permits extension of the I2C-bus by buffering both the data(SDA) and the clock (SCL) lines, thus enabling five buses of 400 pF.The I2C ...
单片机编程 Adding 32 KB of Serial SRAM to
Although Stellaris microcontrollers have generous internal SRAM capabilities, certain applicationsmay have data storage requirements that exceed the 8 KB limit of the Stellaris LM3S8xx seriesdevices. Since microcontrollers do not have an external parallel data-bus, serial memory optionsmust be consi ...
单片机编程 Emulating a synchronous serial
The C500 microcontroller family usually provides only one on-chip synchronous serialchannel (SSC). If a second SSC is required, an emulation of the missing interface mayhelp to avoid an external hardware solution with additional electronic components.The solution presented in this paper and in the a ...