The figure shows a complementary output pole circuit, which enhances the current drive capability of the circuit. I also know the working principle.
However, what is the role of C23 and R31 in the figure? A typical complementary output should be without C23 and R31, which should be disconnected here.
Love 게시 날짜 October 21, 2020
This resistance and this capacitance should produce a zero, which is related to the frequency characteristics of the circuit.
Adriano 게시 날짜 October 21, 2020
It must be related to frequency, how exactly?
I am thinking, is it a way to eliminate crossover distortion. When the level amplitude is less than the turn-on voltage of the transistor, it is turned on through the capacitor and resistance, and the capacitor is used for blocking.
Adria 게시 날짜 October 21, 2020
The value of resistance and capacitance in the circuit is related to the load. Normally, this is not necessary. The landlord should give the driving signal and load situation, it will be easier to judge its role.
The drive should be a pulse signal, and the RC component should be used to improve the edge.
Kirby 게시 날짜 October 21, 2020
I personally understand that when the drive line is at high frequency interference, it is equivalent to an antenna, which is prone to misconduct. The capacitor is mainly for anti-interference, and the resistance is for absorption. The host can see if there are dozens of Pifa patches.