Electronics > Beginners
Glue gun mod...
Muttley Snickers:
Before making permanent modifications to your gun you might want to check and test that the glue sticks you generally use in that gun will still have the same or similar adhesive properties when used at the lower temperature. The reason I mention this is because some glue sticks don't adhere very well if they don't reach a certain temperature.
mikerj:
Looks like the circuit is a simple battery undervoltage cut out to me. C1 turns the PMOS on when power is applied, and the NPN keeps the PMOS switched on as long as the zener D1 is conducting.
nznative:
--- Quote from: Muttley Snickers on May 27, 2019, 10:30:27 am ---Before making permanent modifications to your gun you might want to check and test that the glue sticks you generally use in that gun will still have the same or similar adhesive properties when used at the lower temperature. The reason I mention this is because some glue sticks don't adhere very well if they don't reach a certain temperature.
--- End quote ---
Hi @Muttley Snickers. I have purchased these ALL temperature sticks from Gorilla. They should do the trick!!
Also hi @mikerj. That is a very helpful schematic! Thank you for your awesome input!
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Mechatrommer:
--- Quote from: Zero999 on May 27, 2019, 09:27:49 am ---I suspect that board is purely for battery protections/charging. I doubt that board does any temperature control or PWM. There doesn't appear to be a connection for a temperature sensor.
Start by searching for the part number on the IC.
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--- Quote from: nznative on May 27, 2019, 01:29:33 am ---do you think I could ‘simply’ swap the current board for something like this and hope for success?
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i ignored there is another connection (extra wiring) to the circuit (at U1 or Q1? sink pin, downstream the bat+), looking the big picture in OP, there is one component (heat sensor or PTC?) from the heater coil and black wires into the circuit, not sure what it is (or maybe just connection to the switch? not really clear from here). you may change to buck converter/pwm generator circuit you linked (i'm not 100% sure) but i think you will lose functionality of that extra component. ymmv.
Raj:
use this -https://www.ebay.com/itm/Digitale-LCD-Temperaturregler-Thermostat-Thermoelement-Industrial/143260092247?hash=item215af78757:g:J8IAAOSw021c4pTm
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