百度试题 结果1 题目Question. An oscillator is nothing but an amplifier with(a) positive feedback(b) large gain(c) no feedback(d) negative feedback 相关知识点: 试题来源: 解析 A 反馈 收藏
Disclosed is an oscillator (1) comprising a resonator (2) with at least one first tunable element (5), with the aid of which the resonant frequency of the resonator (2) can be modified, and an amplifier (3) that is connected to the resonator at a coupling point (4) and is provided...
If we are treating an amplifier as a fundamental unit, it is not by accident. Once we have an amplifier, we can make many other devices with it. For example, an oscillator is simply an amplifier with feedback. 4.5.1 Elements of an amplifier Fig. 4.10 shows the three basic elements of...
Tunnel-effect semiconductor, used as an oscillator or amplifier, forms part of surface of waveguide or chamber (pick-up) coils made of, in particular, the HTSCmaterials, as a detecting element in known tunnel diodeoscillator technique it seems of considerable ... HP Kleinknecht 被引量: 6发表...
An active crystal oscillator is a crystal that contains amplifier circuitry that provides an output signal. This crystal oscillator includes not only the crystal oscillator component, but also a built-in amplifier circuit to amplify the output signal of the crystal oscillator. ...
Figure 17.3.Principles of the oscilloscope, the essential instrument for working with waveforms A signal applied to the Y-input is attenuated by a calibrated variable attenuator (usually a switch rather than a potentiometer) before being applied to the Y-amplifier. The amplified output drives the ...
In an all-polarization-maintaining-fiber master oscillator power amplifier system at 1064 nm under all normal dispersion, intense nanosecond emission was generated with spectral broadening from 980 to 1600 nm. In such a fiber nonlinear power amplifier, efficient power scaling is able to be free from...
PHASEX is an experimental MIDI softsynth for Linux/ALSA/JACK with a synth engine built around flexible phase modulation and flexible oscillator/LFO sources. Modulations include AM, FM, offset PM, and wave select. PHASEX comes equipped with multiple filter types and modes, a stereo crossover del...
Once fully built, one can determine if the supply being used has low enough noise for the application. Oscillator phase noise is measured and compared against results achieved with a known good supply, ADCs are checked to make sure that they are getting the maximum number of bits. These are...
There is no electrical component and optical or electrical amplifier in the proposed scheme. The power of the 8 GHz frequency component is −38.2 dBm, with the RF signal is 0 dBm, the system has a conversion gain of −38.2 dBm. Experimental results demonstrate that the frequency division ...