搜索资源列表
-
0下载:
摘要:应用CXA1019S芯片完成接收机混频、中放、解调等的设计,并用芯片BU2614以PLL
频率合成的方法产生稳定的本振和控制输入调谐回路的谐振频率,从而实现电调谐。单片机采用
MCS-51系列对频率合成器BU2614进行控制,加上键盘、显示和存储器电路,可实现多种程控搜
索、电台存储等功能。-Abstract: The complete receiver chip CXA1019S mixer, amplifier, demodulator, such as design, a
-
-
0下载:
介绍了基于DSP 的115 V/400 Hz 三相逆变电源的设计原理和设计方法,采用移相谐振控制技术和周波变流型
高频环节逆变技术,使整机开关最大程度地实现了软开关。实验结果表明,该逆变电源设计合理、可靠性高,并在小
型化、提高功率密度和可靠性方面,取得了很好的效果-Introduced DSP-based three-phase inverter power supply 115 V/400 Hz design principle and design method, using ph
-
-
0下载:
高频小信号调谐放大器,了解谐振回路的幅频特性分析——通频带与选择性。-Small-signal high-frequency amplifier tuned to find resonant frequency characteristics of circuit- passband and selectivity.
-
-
0下载:
:电流滞环控制具有易于实现、快速的动态响应和无条
件稳定等优点,但该控制方法使逆变器的开关频率不固定,
造成逆变器输出滤波器设计困难,因此很少有文献提及此种
滤波器的设计方法。该文研究了一种基于电流滞环控制的半
桥双降压式逆变器输出滤波器的设计方法。该方法从短路特
性和稳压精度两方面阐述了如何最优选取滤波电感,从谐振
频率和无功补偿两方面阐述了如何最优选取滤波电容-Hysteresis current control method has the
characters
-
-
0下载:
LC谐振频率计算器,只要知道电感、电容、频率其中任意两项,便可计算出第三项的数值。是硬件设计的得力助手。-LC resonant frequency calculator, just know inductance, capacitance, frequency, any two of which, you can calculate the value of the third term. Hardware design assistant.
-
-
0下载:
We demonstrate a new approach to CARS spectroscopy by effi ciently syn- thesizing synchronized narrow-bandwidth (less than 10 cm− 1) pump and Stokes pulses (frequency diff erence continuously tunable upto ~3000 cm− 1) based on spec
-
-
0下载:
An electronic ballast, to regulate the power in an Electrodeless Induction Lamp, based on the Loss Free Resistor (LFR) concept is presented here. It consists of two stages. The first one, a boost converter, behaves like a constant power source. The s
-
-
0下载:
utilizing fft to test resonant frequency of hf rfid tag
-
-
0下载:
针对现有电容器工频充电方式存在的不足,在综合考虑串联谐振、并联谐振、串并联谐振三种变换电路性能的条件
下,提出一种新的基于全桥串联谐振模型的电容器恒流充电优化方法。 结合电路稳态与动态性能分析,阐述了能量的具体
转化与传递过程。 仿真研究表明该充电方案可有效改善电路品质,提高电容器储能密度-For the deficiencies of the prior frequency capacitor charging exists, in considering the series res
-
-
1下载:
大部分元件需要DIY,所以需要知道元件的参数。因为DIY的元件没有标称技术参数。比如,需要知道谐振器件、检波器件、天线、耳机、变压器等器件的电抗特性。其中,高频参数可以使用Q表解决问题,而低频参数Q表难以测定。为了解决这个问题,笔者认为LCR数字电桥能够胜任。((Most components require DIY, so you need to know the parameters element. DIY components because there is no nominal te
-