kender
Advanced Member level 4
transistor step up
Colleagues,
I need to make a small unregulated step-up that would boost +2.7V from a depleted battery pack to approximately 7V to run an LCD, which consumes micro-amps. Is it possible to do this with a current that comes from the microcontroller pin (with PWM), some passives and a diode. I guess that could be possible, if the output of the microcontroller were open drain.
I’m not a power supply specialist; I’m just playing with this an idea. EDIT: this is more of an exploratory question rather then a search for a solution for a particular problem.
Please let me know if what I'm describing is unclear.
Cheers,
Nick
Colleagues,
I need to make a small unregulated step-up that would boost +2.7V from a depleted battery pack to approximately 7V to run an LCD, which consumes micro-amps. Is it possible to do this with a current that comes from the microcontroller pin (with PWM), some passives and a diode. I guess that could be possible, if the output of the microcontroller were open drain.
I’m not a power supply specialist; I’m just playing with this an idea. EDIT: this is more of an exploratory question rather then a search for a solution for a particular problem.
Please let me know if what I'm describing is unclear.
Cheers,
Nick