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test-and-measurement:guides:waveforms-readback-supplies [2022/03/27 15:25] – Keith M Kolmostest-and-measurement:guides:waveforms-readback-supplies [2023/01/21 00:34] – adjusted spec mentions to be more device agnostic James Colvin
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   * A Digilent Test & Measurement Device with variable Power Supplies with readback capabilities:   * A Digilent Test & Measurement Device with variable Power Supplies with readback capabilities:
     * [[test-and-measurement:analog-discovery-pro-5250:start|Analog Discovery Pro (ADP5250)]]     * [[test-and-measurement:analog-discovery-pro-5250:start|Analog Discovery Pro (ADP5250)]]
 +    * [[test-and-measurement:discovery-power-supply-3340:start|Discovery Power Supply (DPS3340)]]
   * A Computer with WaveForms Software Installed   * A Computer with WaveForms Software Installed
  
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 **Important**: The power supply leads are not to be used as a scope or DMM input. These measurements are only intended to be used to measure what the power supply is currently outputting. Shorting the supplies out to a scope or DMM connection can result in damage to your device. **Important**: The power supply leads are not to be used as a scope or DMM input. These measurements are only intended to be used to measure what the power supply is currently outputting. Shorting the supplies out to a scope or DMM connection can result in damage to your device.
  
-<WRAP group> <WRAP column half> 
 === 2.1 Hardware Setup === === 2.1 Hardware Setup ===
 +-->Hardware Setup with Analog Discovery Pro (ADP5250)#
 +<WRAP group> <WRAP column half>
 The ground and power supply rail screw terminals can be probed with a Digital Multimeter (DMM) by either touching the DMM probes to the metal pads at the end of the supply rail's terminals, or using cables to first break out the power supplies to a breadboard or other circuit. Setting the DMM to measure DC voltage allows you to easily test that the supply rail voltage matches the value specified by WaveForms. The ground and power supply rail screw terminals can be probed with a Digital Multimeter (DMM) by either touching the DMM probes to the metal pads at the end of the supply rail's terminals, or using cables to first break out the power supplies to a breadboard or other circuit. Setting the DMM to measure DC voltage allows you to easily test that the supply rail voltage matches the value specified by WaveForms.
  
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 {{:test-and-measurement:guides:updated5250powersupply.jpg?600 |}} {{:test-and-measurement:guides:updated5250powersupply.jpg?600 |}}
 </WRAP> </WRAP> </WRAP> </WRAP>
 +<--
 +-->Hardware Setup with Discovery Power Supply (DPS3340)#
 +<WRAP group> <WRAP column half>
 +Plug in a set of banana plug connectors into the Output 1 port on the front of the Discovery Power Supply. Please connect the red banana plug to the red connector on the Discovery Power Supply and the black banana plug to the black connector. While theoretically you could use any color, keeping things the same will avoid confusion when working with your circuit. Use the alligator clip or minigrabber clips to connect the power supply to your Device Under Test.
  
 +</WRAP> <WRAP column half>
 +{{:test-and-measurement:discovery-power-supply-3340:img_4232.png?600 |}}
 +</WRAP> </WRAP>
 +<--
 ---- ----
  
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 <WRAP column half> <WRAP column half>
 === 3.4 Tracking === === 3.4 Tracking ===
-Next to the +/- 25V power supplies you will notice a checkbox stating *+/- 25V Tracking*.  If you select this checkbox, the supplies will track each other. So if you set the +25V supply to a +21V, the -25V supply will "track" to the inverse, so in this case -21V.+Underneath the Master Enable box there will be an option to enable tracking.  If you select this checkbox, the inversely matching supplies will track each other. For example, if you set a +25 V supply to +21 V, the -25 V supply will "track" to the inverse, so in this case -21 V. Similarly, the current limitation will be tracked as well.
 </WRAP> </WRAP>
 <WRAP column half> <WRAP column half>
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 <WRAP column half> <WRAP column half>
 === 3.5 Voltage Drop Down === === 3.5 Voltage Drop Down ===
-Each of the three power supplies have a drop down menu associated with voltage.  By changing the voltage selected, you change the voltage output when **Master Enable** is on.  +Each of the three power supplies have a drop down menu associated with both voltage and current.  By changing the value, you change the maximum amount the parameter can reach when **Master Enable** is on.  
 </WRAP> </WRAP>
 <WRAP column half> <WRAP column half>
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 <WRAP column half> <WRAP column half>
 === 3.6 Supply Settings (Gear) Menu === === 3.6 Supply Settings (Gear) Menu ===
-The gear dropdown for each supply contains the limit settings for that supply. For instance, if you set the maximum voltage of the +6V supply to 4V, it will be impossible to adjust the power supply above 4V.   +The gear dropdown for each supply contains the limit settings for that supply. For instance, if you set the maximum voltage of the a supply to less than it's maximum value, it will be impossible to adjust the power supply beyond that limitation.   
 </WRAP> </WRAP>
 <WRAP column half> <WRAP column half>
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 For more information on WaveForms visit the [[software:waveforms:waveforms-3:reference-manual|WaveForms Reference Manual]].  For more information on WaveForms visit the [[software:waveforms:waveforms-3:reference-manual|WaveForms Reference Manual]]. 
  
-For technical support, please visit the [[https://forum.digilentinc.com/forum/8-test-and-measurement/|Test and Measurement]] section of the Digilent Forums.+For technical support, please visit the [[https://forum.digilent.com/forum/8-test-and-measurement/|Test and Measurement]] section of the Digilent Forums.