| Electronics > Beginners |
| Glue gun mod... |
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| nznative:
--- Quote from: Ysjoelfir on May 27, 2019, 06:05:23 am ---Is that a ryobi glue gun? sure looks like one. If so, I have the same guns at home and could take a look inside when I'm back from work to help you figure out a solution. --- End quote --- Correct @Ysjoelfir! It is a Ryobi indeed. If you could check it out and offer any ideas it would be greatly appreciated!!! Sent from my iPhone using Tapatalk |
| garethw:
@nznative, do you have an oscilloscope? If so, some measurements from the Vout terminal would be very useful. Sent from my iPhone using Tapatalk |
| nznative:
Not yet @garethw... will check at the workshop tomorrow and see if we have one there... [emoji1417][emoji1417][emoji1417] Sent from my iPhone using Tapatalk |
| Zero999:
--- Quote from: ogden on May 27, 2019, 05:46:43 am --- --- Quote from: amyk on May 27, 2019, 02:10:06 am ---I would try to reverse-engineer that circuit first; it doesn't look like PWM to me, more like a simple linear regulator with D1 (a zener?) setting the voltage. --- End quote --- No. It is PWM or just solid state relay. Heater regulation with linear regulator would be insanity. --- End quote --- 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. |
| nznative:
Thanks @Zero999 will look into it ASAP... Sent from my iPhone using Tapatalk |
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