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电源技术 飞利浦绿色电源集成电路选型资料

  IC 特色 :   ˙ 半谐振模式之 ZVS零电压切换 , 能有效降低切换损失 , 提高效率 , 并具展频功能 , 改善EMI .   ˙ 轻 / 重载的 Duty Factor 皆在 CCM 与 DCM 边缘 , 是最能发挥次级 "同步整流" 效率的一种工作模式 .   ˙ 空载时进入 Cycle Skipping ( Typical 0.3W ) , 有效达成环保规範 .   ˙ 内建 "LEB前缘 ...
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单片机编程 基于ATmega48单片机的可调交流电子负载的设计

介绍一种无极可调交流电子负载设计的新方法,由ATmega48单片机输出PWM波,通过上位机设定不同的占空比控制场效应管的通断时间,即改变流过场效应管的平均电流。根据电流的大小,可以等效为相应的负载,并将采集的电流值显示在上位机上。文中对该系统的软﹑硬件设计思路作了详细的分析,阐述了其设计原理。   Abstract ...
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测试测量 基于Multisim 10的矩形波信号发生器仿真与实现

在Multisim 10软件环境下,设计一种由运算放大器构成的精确可控矩形波信号发生器,结合系统电路原理图重点阐述了各参数指标的实现与测试方法。通过改变RC电路的电容充、放电路径和时间常数实现了占空比和频率的调节,通过多路开关投入不同数值的电容实现了频段的调节,通过电压取样和同相放大电路实现了输出电压幅值的调节 ...
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其他嵌入式/单片机内容 he LPC932 can be used to create a Pulse Width Modulated PWM signal. That s an analog signal, with on

he LPC932 can be used to create a Pulse Width Modulated PWM signal. That s an analog signal, with only 2 discrete levels, for example 0V and 5V and a constant period. The current value of this signal at a certain poiTnt of time is proportional to its Duty Cycle. That s the High Time during one perio ...
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系统设计方案 本系统适合中小规模宾馆使用

本系统适合中小规模宾馆使用,有旅客登记、员工管理功能,同时本着责任明确原则,每个房间都由一个管理员负责。相应就有三张表:旅客信息登记表(hotel),员工信息管理表(info),责任表(duty)。同时为了信息安全性,进行任何操作之前都必须通过密码登陆界面,相应设一个用户表(users)。附优秀论文说明。 ...
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嵌入式/单片机编程 A digital fi‘equeney meter designed with FPGA development software Q-~us 11 is introduced.The 1 Hz—l

A digital fi‘equeney meter designed with FPGA development software Q-~us 11 is introduced.The 1 Hz—l MHz input measured pulse signals of the digital ii‘equency meter can be used for measuring frequency,period,pulse width and duty ratio,etc.The test results stably display O71 3 seven—segment ...
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DSP编程 This example demonstrates the use of the ADC block and PWM blocks. The generated DSP code produces t

This example demonstrates the use of the ADC block and PWM blocks. The generated DSP code produces the pulse waveform whose duty cycle is changing as the voltage applied to ADC input changes. The waveform period is kept constant.
https://www.eeworm.com/dl/516/297036.html
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单片机开发 SimpliciTI&#8482 -1.0.3.exe for CC11xx and CC25xx SimpliciTI is a simple low-power RF network proto

SimpliciTI&#8482 -1.0.3.exe for CC11xx and CC25xx SimpliciTI is a simple low-power RF network protocol aimed at small (<256) RF networks. Such networks typically contain battery operated devices which require long battery life, low data rate and low duty cycle and have a limited number of nodes talk ...
https://www.eeworm.com/dl/648/298540.html
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单片机开发 SimpliciTI&#8482 -1.0.4.exe for CC2430 SimpliciTI is a simple low-power RF network protocol aimed

SimpliciTI&#8482 -1.0.4.exe for CC2430 SimpliciTI is a simple low-power RF network protocol aimed at small (<256) RF networks. Such networks typically contain battery operated devices which require long battery life, low data rate and low duty cycle and have a limited number of nodes talking direct ...
https://www.eeworm.com/dl/648/298543.html
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VHDL/FPGA/Verilog SOPC实验--自定义PWM组件:以带一个Avalon Slave 接口的PWM 组件为例

SOPC实验--自定义PWM组件:以带一个Avalon Slave 接口的PWM 组件为例,说明如何自定义组件。,一个Avalon Slave 接口可以有clk、chipselect、address、read、readdata、write 及writedata 等信号,但这些信号都不是必需的。 一、功能 我们要实现的PWM 组件具有以下功能: 1. PWM 的周期可改,用period 寄存器存储; 2. PWM ...
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