| Electronics > Beginners |
| Glue gun mod... |
| << < (3/5) > >> |
| amyk:
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. |
| garethw:
--- Quote from: Mechatrommer on May 26, 2019, 06:13:09 pm --- --- Quote from: nznative on May 26, 2019, 10:51:40 am ---Here is a pic of the pcb though... --- End quote --- it looks like PWM generator. --- End quote --- I agree with Mechatrommer. The components don’t look large enough for linear regulation. If it is PWM then it could be a case of replacing a capacitor to lower the temperature. Having said that I think nznative wants both low and high temps. Sent from my iPhone using Tapatalk |
| ogden:
--- 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. |
| Ysjoelfir:
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. |
| nznative:
--- Quote from: garethw on May 27, 2019, 05:22:15 am --- --- Quote from: Mechatrommer on May 26, 2019, 06:13:09 pm --- --- Quote from: nznative on May 26, 2019, 10:51:40 am --- --- End quote --- If it is PWM then it could be a case of replacing a capacitor to lower the temperature. Having said that I think nznative wants both low and high temps. --- End quote --- Correct @garethw...A dual temp cordless gun is the objective here...! Sent from my iPhone using Tapatalk --- End quote --- |
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