How does a linear DC regulated power supply provide a negative voltage?
I recently got an SSM2142 IC, and I want to make a circuit to verify it. I need a positive and negative voltage of 18V. I have two sets of power supplies on hand, one for positive voltage and the other for negative voltage. Is it possible to switch the positive and negative power lines of the power cord, is this right? ?
It needs to see whether the power supply can support the negative pressure connection method. Some power supply negative poles are directly connected to the earth circuit (chassis, etc.), such a power supply cannot be connected to the negative pressure mode, otherwise it will be short-circuited through the earth circuit, and only the floating output The designed power supply can.
