No current or voltage that cannot be amplified
How to enlarge the peak amplitude? At present, a spike wave is obtained through the differential circuit, but the pulse width is not more than 200us, but the amplitude is very low, and the output current is only a few uA. Is there any way to improve the amplitude and retain the peak of this spike wave?(I tried to use the in phase amplifier before, although the current amplitude can be amplified, but the tip is flattened)
0 Answer
Flat because of saturation distortion, VB point potential is too high
Using a filter: Before amplifying the signal, a high-pass filter is used to remove the low-frequency component in order to better amplify the high-frequency component of the peaked wave. The bandwidth of the filter should match the frequency range of the signal to preserve the characteristics of the peak wave.
only 10-1000 hz frequency also need a high frequency
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