Hi all,
I saw this switching circuit online from a reference design that uses 2 MOSFET to enable or disable power (V+) to the rest of the components .
I don't quite understand how this circuit works. Can anyone help? I have 5V connected to VBAT and VBUS is not connected to anything. Then I have a microcontroller pin connected to POWER. The microcontroller pin switches between 0 and 3.3V.
When the POWER pin is 3.3V, I have 5V coming out from V+ to power up the rest of my circuit. When POWER pin is 0V, I have 3.3V coming out from V+ (shouldn't it be 0V?)
Thanks in advance!
I saw this switching circuit online from a reference design that uses 2 MOSFET to enable or disable power (V+) to the rest of the components .
I don't quite understand how this circuit works. Can anyone help? I have 5V connected to VBAT and VBUS is not connected to anything. Then I have a microcontroller pin connected to POWER. The microcontroller pin switches between 0 and 3.3V.
When the POWER pin is 3.3V, I have 5V coming out from V+ to power up the rest of my circuit. When POWER pin is 0V, I have 3.3V coming out from V+ (shouldn't it be 0V?)
Thanks in advance!