Is there any professional term for the switching power supply marked with a red circle in the picture?

西里古1992

Is there any professional term for the switching power supply marked with a red circle in the picture? [Copy link]

My colleague asked me to test the voltage difference between the diode anode marked by the red circle and the busbar and 12Vo-. The waveform is as follows. Is this called clamping voltage? Switching node? Or drain voltage?

qiushenghua

The anode of D153 is the switch node and the anode of D151 is the secondary coil.

maychang

Both waveforms are the voltage waveforms of the anode of D153 (that is, the drain of the MOS tube) to PGND2, and there is no voltage waveform of D151 to 12Vo-.

maychang

"The waveform is as follows. Is this called clamping voltage? Switching node? Or drain voltage?" It is the voltage between the drain and source of the MOS tube, right?