erchiu
Member level 5
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hi everybody
i am making an circuit for check the capacity of lead batteries and i used an pic18f2550.
for to check the capacity of the battery i connect to it an load and measured the current and voltage.
for make this i use an 5v relais.
but here i have a problem.
i maked the circuit in way that it can work in two different way.
first way :with external 5v power supply way usb
second way: directally from the battery by to check.
when i use the circuit in first mode (with an external 5v power supply), it work is good.
when i use the circuit in second mode (directally from the battery to check, the pic is reset when the load to discharge the battery is connected.
as can i solve this problem?
erchiu
i am making an circuit for check the capacity of lead batteries and i used an pic18f2550.
for to check the capacity of the battery i connect to it an load and measured the current and voltage.
for make this i use an 5v relais.
but here i have a problem.
i maked the circuit in way that it can work in two different way.
first way :with external 5v power supply way usb
second way: directally from the battery by to check.
when i use the circuit in first mode (with an external 5v power supply), it work is good.
when i use the circuit in second mode (directally from the battery to check, the pic is reset when the load to discharge the battery is connected.
as can i solve this problem?
erchiu