As shown in the figure, two P-MOS circuits like this can realize power switching, right? The right power supply will not charge the left battery, right?
Carolyn ポストする December 9, 2020
should be. Is the current big?
Diodes can not be added.
Barrett ポストする December 9, 2020
The current is about 1.2A, you can add a diode.
Rodney ポストする December 9, 2020
The conduction passes through the body diode, and the two pmos tubes can be replaced.
Hana ポストする December 9, 2020
If you don't want to charge the battery, you can directly replace Q13 with a diode. When the external 16V comes, the battery will naturally not discharge when the potential of the diode is low.
