问题
Temperature voltage drift of the amplifier kA、 Temperature voltage drift of transistors kT.
What is the temperature voltage drift? How to use kT of transistors to compensate the temperature voltage drift kA of an amplifier? Please compute function of temperature. Explain its active principle.
Nonlinearly scale input signal to linearly scale output signal、NTC temperature sensor.
(a) How to transfer the nonlinearly scale input signal to linearly scale output signal with Op amp working?
(b)Please design OP amplifier circuit to transfer the nonlinearly scale of NTC temperature sensor into linearly scale output voltage with transistors, Individual explain its active principle.
Pleas design temperature sensor with transistors and OP amplifier on independent of power supply voltage Vcc and current Icc. Compute function of temperature. Explain principle of their action.
Spring constant (κ)、mass of the force object (m).
Determine the differential equation of the simple spring-mass vertical motion. then Simulate this system with the OP amplifiers. Explain and draw output of displacement x(t), velocity v(t), and acceleration a(t).
人呼叫狗来. 狗就过来! 狗在叫, 人听得懂? 请问人聪明还是狗聪明?
6. 电路设计题：
现有条件：
1 系统电源为DC3.3V;
2 传感器供电为：1.5mA恒流，输出为0到100mVDC信号；
3 单片机（x）AD可采集0到2.4VDC
请设计一电路，用单片机（x）采集传感器输出信号，要求系统功耗越小越好，并给出理论功耗值。