Voltage-controlled voltage source second-order active low-pass filter circuit
Source: InternetPublisher:张七岁 Keywords: Active low pass filter filter circuit voltage source BSP Updated: 2021/06/13
Filters are an important part of communication circuits. A voltage-controlled voltage source second-order active low-pass filter is shown in the figure.
It consists of a two-stage RC filter link and a non-phase proportional operation circuit. The first-stage capacitor C is connected to the output end and introduces an appropriate amount of positive feedback
to improve the amplitude-frequency characteristics.
The integrated operational amplifier AJ in the picture uses dual operational amplifier t1A747.
The voltage-controlled electric basket source second- order active low-pass filter can perform low-frequency filtering.
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