| Products > Test Equipment |
| ARRAY electronic loads |
| << < (15/30) > >> |
| Katalyst:
Hey guys, I am new to this forum and am so happy I have found it. I have read every post you guys have written about electronic loads. I am currently working with an Array 3711A and am not very happy with it. It works great for discharging but I am having serious problems with the remote control. I would like to do some basic control using MATLAB and the constant resistance function in this device but I have serious doubts about it's functionality for this purpose. I have noticed that when the device is programmed at lower resistances (<250 Ohm), it produces erroneous current measurements. Could this be to do with the input terminals? The device was previously used. Can anyone recommend a load which may be better for electronic control? I am considering a BK Precision but am not sure yet. Thanks, Katalyst |
| saturation:
Great to find another interested reader. The native software is buggy but crmaris has made a customized programmed suite to remote control 4x 3711a and 3x 3710. This suggests to me the drivers are OK. I collect data using the battery charger software but if I try to control the unit by sending commands using the native Array software, its erratic. It works accurately when operated via the keypad for all the supported modes, C, R, and W. I'll recheck your ohms issue. http://www.techpowerup.com/articles/overclocking/psu/161 A previously used eload can be problematic as it can be damaged if misused, or abused. --- Quote from: Katalyst on November 05, 2012, 02:34:43 pm ---Hey guys, I am new to this forum and am so happy I have found it. I have read every post you guys have written about electronic loads. I am currently working with an Array 3711A and am not very happy with it. It works great for discharging but I am having serious problems with the remote control. I would like to do some basic control using MATLAB and the constant resistance function in this device but I have serious doubts about it's functionality for this purpose. I have noticed that when the device is programmed at lower resistances (<250 Ohm), it produces erroneous current measurements. Could this be to do with the input terminals? The device was previously used. Can anyone recommend a load which may be better for electronic control? I am considering a BK Precision but am not sure yet. Thanks, Katalyst --- End quote --- |
| robrenz:
Anyone know of any guides/manuals for the actual setup for using using a bipolar operational power supply (4 quadrant) as an electronic load. Specificaly how to accomplish CC CV CR CW modes of operation. I realize some of these modes may require additional circuitry to control the source/sink unit. I just got a new unused TDK/Lambda/Electronics measurements inc. BOSS20-10-1-D-PM Bipolar Operational Source/Sink Power Supply ±0 - 20V, 0 - 10A off Ebay. I am not looking to be spoon fed, just get me pointed in the right direction. |
| saturation:
Hi robrenz, It may be described in manuals for the 4-quadrant supply you have. As example, Agilent N6700 Modular Power System SMU user manuals describe the adjustment to provide CV and CC like modes. Called downprogramming, the main drawback to using such supplies is that if the source stopped sinking current the PSu could then start supplying it to the source [ it could be programmed to not do so, but it depends on your unit], and could be a problem. Note capability differs in other members of the SMU family, mostly are capable of CC but not CV. I'm not sure about CP. The N678xA manual describes using it as a CV or CC sink. --- Quote from: robrenz on November 05, 2012, 06:07:12 pm ---Anyone know of any guides/manuals for the actual setup for using using a bipolar operational power supply (4 quadrant) as an electronic load. Specificaly how to accomplish CC CV CR CW modes of operation. I realize some of these modes may require additional circuitry to control the source/sink unit. I just got a new unused TDK/Lambda/Electronics measurements inc. BOSS20-10-1-D-PM Bipolar Operational Source/Sink Power Supply ±0 - 20V, 0 - 10A off Ebay. I am not looking to be spoon fed, just get me pointed in the right direction. --- End quote --- |
| peter.mitchell:
I just saw this; http://www.ebay.com.au/itm/150792412128 and thought immediately "well, someone must have held a grudge against those loads" |
| Navigation |
| Message Index |
| Next page |
| Previous page |