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发表于 2015-3-31 10:20:40
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PP/SE位置没错的,你可以看一看以下原设计者的解释:
Push-pull/single ended operation
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The phase splitter is M11, see the schematic. The signal at the source of this MOSFET is in phase with the signal on the gate, and the signal at the drain of this MOSFET is phase inverted. This means that the power MOSFETs M16 and M18 will sink and source the output current. The coupling of C20 at the upper end of R9 implies that the two transistors are operated in push pull mode, i.e. when the current in M16 increases, the current in M18 decreases, and vice versa. However, when C20 is connected to the lower end of R9, M16 is almost coupled as a current generator and M18 must deliver most of the current variation, we can say that the output is operated single ended.
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