基准电流 meaning in Chinese
background current
reference current
Examples
- The developing history , present situation and trends of temperature sensor and cmos integrated temperature sensor were summarized in this paper
本文概述了基准电压源和基准电流源的发展历史,现状和趋势。 - The current source plays an important part in the performance of the oscillator . with the help of the voltage reference , we design a constant current source which does not vary with the temperature 、 the voltage source and the process
由于充放电电流对弛张振荡器的性能有很大的影响,因此本文把基准电压源结合在一起设计出一个受温度、电源电压、工艺条件影响很小的基准电流参考源。 - The thesis has done the widespread investigation and study to the domestic and foreign ’ s technologies of analogy low voltage and low power , and analyzes the principles of work , merts and shortcomings of these technologies , based on the absorption of these technologies , it designs a 1 . 5v low power rail - to - rail cmos operational amplifier . when designing input stage , in order to enable the input common mode voltage range to achieve rail - to - rail , it does not use the traditional differential input pair , but use the nmos tube and the pmos tube parallel supplementary differential input pair to the structure , and uses the proportional current mirror technology to realize the constant transconductance of input stage . in the middle gain stage design , the current mirror load does not use the traditional standard cascode structure , but uses the low voltage , wide - swing casecode structure which is suitable to work in low voltage . when designing output stage , in order to enhance the efficiency , it uses the push - pull common source stage amplifier as the output stage , the output voltage swing basically reached rail - to - rail . the thesis changes the design of the traditional normal source based on the operational amplifier , uses the differential amplifier with current mirror load to design a normal current source . the normal current source provides the stable bias current and the bias voltage to the operational amplifier , so the stability of operational amplifier is guaranteed . the thesis uses the miller compensate technology with a adjusting zero resistance to compensate the operational amplifier
本论文对国内外的模拟低电压低功耗技术做了广泛的调查研究,分析了这些技术的工作原理和优缺点,在吸收这些技术成果基础上设计了一个1 . 5v低功耗轨至轨cmos运算放大器。在设计输入级时,为了使输入共模电压范围达到轨至轨,不是采用传统的差动输入结构,而是采用了nmos管和pmos管并联的互补差动输入对结构,并采用成比例的电流镜技术实现了输入级跨导的恒定;在中间增益级设计中,电流镜负载并不是采用传统的标准共源共栅结构,而是采用了适合在低压工作的低压宽摆幅共源共栅结构;在输出级设计时,为了提高效率,采用了推挽共源级放大器作为输出级,输出电压摆幅基本上达到了轨至轨;本论文改变传统基准源基于运放的设计,采用了带电流镜负载的差分放大器设计了一个基准电流源,给运放提供稳定的偏置电流和偏置电压,保证了运放的稳定性;并采用了带调零电阻的密勒补偿技术对运放进行频率补偿。 - According to the comparison of related reference , the circuit had lower power consumption in the same process . more pieces meaned more complicated , so through the ptat and ctat current achieved above , we could accomplishd the simplest multi - order compensation of temperature , and got the output voltage with low tempereature coefficient . it was reasonable to use the ptat and ctat current achieved above to get reference current with low temperature coefficient through reasonable design
与相关文献相比,在工艺相同的情况下具有更低的功耗。考虑到分段越多,电路会变得越复杂,利用得到的ptat电流和ctat电流完成温度的两段线性补偿,获得温度系数很小的基准电压输出。利用上面的ptat电流和ctat电流,合理设计电路获得较小温度系数的基准电流。