Gen7 MOSFET problem (heat bed) December 28, 2012 03:03AM |
Registered: 12 years ago Posts: 65 |
Re: Gen7 MOSFET problem (heat bed) December 28, 2012 03:24PM |
Registered: 12 years ago Posts: 65 |
Re: Gen7 MOSFET problem (heat bed) December 28, 2012 07:02PM |
Registered: 12 years ago Posts: 65 |
Re: Gen7 MOSFET problem (heat bed) December 29, 2012 08:59AM |
Registered: 13 years ago Posts: 7,616 |
Quote
the MOSFET
Quote
I could read temperatures of over 70C with an infrared thermometer.
Quote
If I disconnect the heatbed cable the led turns on after 2-3 seconds
Generation 7 Electronics | Teacup Firmware | RepRap DIY |
Re: Gen7 MOSFET problem (heat bed) December 29, 2012 02:02PM |
Registered: 12 years ago Posts: 65 |
Re: Gen7 MOSFET problem (heat bed) December 30, 2012 07:01AM |
Registered: 13 years ago Posts: 7,616 |
Generation 7 Electronics | Teacup Firmware | RepRap DIY |
Re: Gen7 MOSFET problem (heat bed) December 30, 2012 08:44AM |
Registered: 12 years ago Posts: 65 |
Re: Gen7 MOSFET problem (heat bed) December 30, 2012 05:21PM |
Registered: 13 years ago Posts: 7,616 |
Quote
well now with the new resistor the voltage stabilizes at 7.5 (it starts at 3.5 and picks up slowly)
Quote
shouldnt the PMW be at 100% and the average voltage at 11V with the cold heat bed?
Generation 7 Electronics | Teacup Firmware | RepRap DIY |
Re: Gen7 MOSFET problem (heat bed) December 31, 2012 05:18AM |
Registered: 12 years ago Posts: 65 |
Re: Gen7 MOSFET problem (heat bed) December 31, 2012 07:45AM |
Registered: 13 years ago Posts: 7,616 |
Quote
I tend to believe that the problem lies on the circuit of the second mosfet and that for some reason it cannot stand the loads
Generation 7 Electronics | Teacup Firmware | RepRap DIY |
Re: Gen7 MOSFET problem (heat bed) January 06, 2013 08:15AM |
Registered: 12 years ago Posts: 65 |
Re: Gen7 MOSFET problem (heat bed) January 09, 2013 04:37AM |
Registered: 12 years ago Posts: 65 |
Re: Gen7 MOSFET problem (heat bed) January 09, 2013 07:18AM |
Registered: 13 years ago Posts: 7,616 |
Quote
i think we should make some small addition to the very informative page
Generation 7 Electronics | Teacup Firmware | RepRap DIY |