maniac84
Full Member level 6
Hi guys,
I'm just thinking. Is there anyway we can build a circuit that can support both 9V battery and a 9V PSU? I mean like, if the user got battery, he can use the 9V battery. And when the battery finish, he can plug in the 9V power supply unit. I'm thinking if we put 9V battery and the 9V PSU to on together, if the battery is a nonchargeable type, isn't it will explode? We have to separate it right?
I'm thinking of using a switch. When the user use battery, the switch will switch to battery and when the user use PSU, the switch will switch to PSU. But I think that will be very troublesome to a user. How do we design the circuit that can separate 9V battery and 9V PSU?
I'm just thinking. Is there anyway we can build a circuit that can support both 9V battery and a 9V PSU? I mean like, if the user got battery, he can use the 9V battery. And when the battery finish, he can plug in the 9V power supply unit. I'm thinking if we put 9V battery and the 9V PSU to on together, if the battery is a nonchargeable type, isn't it will explode? We have to separate it right?
I'm thinking of using a switch. When the user use battery, the switch will switch to battery and when the user use PSU, the switch will switch to PSU. But I think that will be very troublesome to a user. How do we design the circuit that can separate 9V battery and 9V PSU?