Gerhard Ebersohn

Good day,&#160;<br> <br> <span style="font-size:11pt;"><span style="font-family:Calibri,sans-serif;"><span style="color:#1f497d;">I want to create a constant power source to measure the thermal properties in a resistive element using a Sourcemeter 2450.&#160;</span></span></span><br> <br> <span style="font-size:11pt;"><span style="font-family:Calibri,sans-serif;"><span style="color:#1f497d;">A typical test would be for say 10 milli seconds to 1 second, &#160;supply a nominal 10R element with constant 100mW and log the resistance.</span></span></span><br> <br> <span style="font-size:11pt;"><span style="font-family:Calibri,sans-serif;"><span style="color:#1f497d;">For this one would need to control the current to </span></span></span><br> <span style="font-size:11pt;"><span style="font-family:Calibri,sans-serif;"><span style="color:#1f497d;">(i^2)R = 10</span></span></span><br> <span style="font-size:11pt;"><span style="font-family:Calibri,sans-serif;"><span style="color:#1f497d;">But since R is a function of temperature the resistance would need to be measured and i adjusted similar to an active load. </span></span></span><br> <br> <span style="font-size:11pt;"><span style="font-family:Calibri,sans-serif;"><span style="color:#1f497d;">Would this be possible? </span></span></span><br> <br> <span style="font-size:11pt;"><span style="font-family:Calibri,sans-serif;"><span style="color:#1f497d;">Your input will be greatly appreciated. </span></span></span><br> <br> <span style="font-size:11pt;"><span style="font-family:Calibri,sans-serif;"><span style="color:#1f497d;">Kind regards, </span></span></span><br> <span style="font-size:11pt;"><span style="font-family:Calibri,sans-serif;"><span style="color:#1f497d;">Gerhard </span></span></span><br> &#160;