Hi,
I have this Laser device (LD) which works on 5V 800mA. This is a medical device which is suppose to work for 15 mins or
stop at a press of Switch. I got 3.7v Li-ion 2200 (4) connected and used ATTINY85 for timing and switching ON/OFF using lathing concept.
Once the pin 1 of ATTINY gets -ve it checks the status and starts 15 min counter OR stops the current process and goes to sleep till
button is pressed again. So far so good.
So when it wakes up it sends signal to MOSFET IRFZ44 (N Channel) Gate and Drains fwds the -ve to Buck-Boost to make 3.7v to 5V to power
up the LD (Problem) The device does not work.
If I connect battery to Buck boost directly, it does perfectly. Image attached for reference.
Maybe this OR another way- I need a single button ON/OFF timer to power my LD device; to work for 15 Mins and switch off. Can be
stopped in middle with the same switch.
I have this Laser device (LD) which works on 5V 800mA. This is a medical device which is suppose to work for 15 mins or
stop at a press of Switch. I got 3.7v Li-ion 2200 (4) connected and used ATTINY85 for timing and switching ON/OFF using lathing concept.
Once the pin 1 of ATTINY gets -ve it checks the status and starts 15 min counter OR stops the current process and goes to sleep till
button is pressed again. So far so good.
So when it wakes up it sends signal to MOSFET IRFZ44 (N Channel) Gate and Drains fwds the -ve to Buck-Boost to make 3.7v to 5V to power
up the LD (Problem) The device does not work.
If I connect battery to Buck boost directly, it does perfectly. Image attached for reference.
Maybe this OR another way- I need a single button ON/OFF timer to power my LD device; to work for 15 Mins and switch off. Can be
stopped in middle with the same switch.