Gen7 Research

From RepRap
Revision as of 16:51, 2 March 2012 by Traumflug (talk | contribs)
Jump to: navigation, search


This page shows some of the research done for developing Generation 7 Electronics. It may be helpful for developing other electronics as well.

MOSFET heat

With heated beds becoming more and more standard, MOSFETs are used to switch currents in excess of 10 Ampéres, sometimes 15 A. While MOSFETs exist which claim to be capable to switch much higher currents, it has been shown they require a careful integration into the electrical design of the electronics. To get to the bottom of this, I've done a few measurement series', measuring heat development of a MOSFET in different configurations.

Markus "Traumflug" Hitter, February 2012

Test setup

Heat vs. PWM Frequency

Heat vs. Signal Resistor

Conclusions and Recommendations