sakibnaz
Full Member level 3
Hi all.
I need to make a circuit where supply can be External VDC (+36V) or Li-Poly (+3.7V ). Here in my system some units will run from +36V (like Motor and other) and some +3.3V (like MCU, Bluetooth, LED etc).
I need to make the circuit where:
- When External VDC and Li-Poly supply is present then system will use VDC and there will be no use of Li-Poly
- If there is no External VDC then system will run from Li-Poly. The +36V units will not be used then only low voltage units will work
- If External VDC removed or External VDC voltage gets less than a threshold of +9V then Li-Poly gets active and supply power
Any idea how to do it? Is there any suitable Power Path selector chip which support 2 input and 2 output?
Thanks in advance.
Regards.
I need to make a circuit where supply can be External VDC (+36V) or Li-Poly (+3.7V ). Here in my system some units will run from +36V (like Motor and other) and some +3.3V (like MCU, Bluetooth, LED etc).
I need to make the circuit where:
- When External VDC and Li-Poly supply is present then system will use VDC and there will be no use of Li-Poly
- If there is no External VDC then system will run from Li-Poly. The +36V units will not be used then only low voltage units will work
- If External VDC removed or External VDC voltage gets less than a threshold of +9V then Li-Poly gets active and supply power
Any idea how to do it? Is there any suitable Power Path selector chip which support 2 input and 2 output?
Thanks in advance.
Regards.