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resources:eval:user-guides:circuits-from-the-lab:cn0241 [15 Sep 2017 10:23] – Trecia Agoyloresources:eval:user-guides:circuits-from-the-lab:cn0241 [20 Nov 2023 04:18] (current) – Deprecated Joyce Velasco
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-======CN0241 High-Side Current Sensing with Input Overvoltage Protection======+======CN0241 -- High-Side Current Sensing with Input Overvoltage Protection (DEPRECATED)====== 
 + 
 + 
 +<note important>This particular reference design has been **RETIRED** or **DEPRECATED**, which means it is no longer supported. This page is here for historical/reference purposes only.</note>
  
 ===== Overview ===== ===== Overview =====
-High-side current monitors are likely to encounter overvoltage conditions from transients or when the monitoring circuits are connected, disconnected, or powered down. This circuit uses the overvoltage protected [[ADI>ADA4096-2]] op amp connected as a difference amplifier to monitor the high-side current. The ADA4096-2 has input overvoltage protection, without phase reversal or latch-up, for voltages of 32V higher than and lower than the supply rails.+High-side current monitors are likely to encounter overvoltage conditions from transients or when the monitoring circuits are connected, disconnected, or powered down. This circuit uses the overvoltage protected [[ADI>ADA4096-2]] op amp connected as a difference amplifier to monitor the high-side current. The [[ADI>ADA4096-2]] has input overvoltage protection, without phase reversal or latch-up, for voltages of 32V higher than and lower than the supply rails. 
 + 
 +The circuit is powered by the [[ADI>ADP3336]] adjustable low dropout 500 mA linear regulator, which can also be used to supply power to other parts of the system, if desired. Its input voltage can range from 5.2V to 12V when set for a 5V output. To save power, the current sensing circuit can be powered down by removing power to the [[ADI>ADP3336]]; however, the power source, such as a solar panel, can still operate. 
 + 
 +This applies voltage to the inputs of the unpowered ADA4096-2; however, no latch-up or damage occurs for input voltages up to 32V. If slower throughput rates are required, the [[ADI>AD7920]] can also be powered down between samples. The [[ADI>AD7920]] draws a maximum of 5 μW when powered down and 15 mW when powered up. The [[ADI>ADA4096-2]] requires only 120 μA under operational conditions. When operating at 5V, this is only 0.6 mW. The [[ADI>ADP3336]] draws only 1 μA in the shutdown mode. 
  
-The circuit is powered by the [[ADI>ADP3336]] adjustable low dropout 500 mA linear regulator, which can also be used to supply power to other parts of the system, if desired. Its input voltage can range from 5.2V to 12V when set for a 5V output. To save power, the current sensing circuit can be powered down by removing power to the ADP3336; however, the power source, such as a solar panel, can still operate.+{{ :resources:eval:user-guides:circuits-from-the-lab:cn0241:cn0241-hw-1024.jpg?nolink&600 |}}
  
-This applies voltage to the inputs of the unpowered ADA4096-2; however, no latch-up or damage occurs for input voltages up to 32V. If slower throughput rates are required, the [[ADI>AD7920]] can also be powered down between samples. The AD7920 draws a maximum of 5 μW when powered down and 15 mW when powered up. The ADA4096-2 requires only 120 μA under operational conditions. When operating at 5V, this is only 0.6 mW. The ADP3336 draws only 1 μA in the shutdown mode.  
  
-{{ :resources:eval:user-guides:circuits-from-the-lab:cn0241:cn0241-hw-1024.jpg?nolink&600 |}} image 
----- 
 ===== Required Equipment ===== ===== Required Equipment =====
   * [[ADI>CN0241|EVAL-CN0241-SDPZ Evaluation Board]]   * [[ADI>CN0241|EVAL-CN0241-SDPZ Evaluation Board]]
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   * DC power supply capable of driving 5 V/2.5 A   * DC power supply capable of driving 5 V/2.5 A
   * 2 Ω/12 W load resistor   * 2 Ω/12 W load resistor
-  * PC (Windows 7) with USB interface+  * //minimum// PC requirement:  
 +    * Windows XP up to Windows 7 OS 
 +    * with USB interface
  
----- 
 ===== General Setup ===== ===== General Setup =====
 ==== Block Assignments ==== ==== Block Assignments ====
-{{ :resources:eval:user-guides:circuits-from-the-lab:cn0241:cn0241-hw-1024_label.jpg?nolink&600 |}} image+{{ :resources:eval:user-guides:circuits-from-the-lab:cn0241:cn0241-hw-1024_l.jpg?nolink&700 |}} 
   - Connect  [[ADI>CN0241|EVAL-CN0241-SDPZ]] **(CN0241 Board)** to the [[ADI>EVAL-SDP-CB1Z|EVAL-SDP-CB1Z]] **(SDP-B Board)** via the 120-PIN Connector **(SDP CONN)**.   - Connect  [[ADI>CN0241|EVAL-CN0241-SDPZ]] **(CN0241 Board)** to the [[ADI>EVAL-SDP-CB1Z|EVAL-SDP-CB1Z]] **(SDP-B Board)** via the 120-PIN Connector **(SDP CONN)**.
   - Connect a 6V power supply to the **+6V** and **GND** pins on the board. If available, a 6 V wall wart can be connected to the barrel connector, **J5**, in place of the 6V power supply.   - Connect a 6V power supply to the **+6V** and **GND** pins on the board. If available, a 6 V wall wart can be connected to the barrel connector, **J5**, in place of the 6V power supply.
   - Connect the 5V/2.5 A dc supply to +VIN and GND on **J1**. Also connect the 2 Ω/12 W load resistor to LOAD and GND on **J1**.   - Connect the 5V/2.5 A dc supply to +VIN and GND on **J1**. Also connect the 2 Ω/12 W load resistor to LOAD and GND on **J1**.
-{{ :resources:eval:user-guides:circuits-from-the-lab:cn0241:cn0241-hw-1024_setup.png?nolink&600 |}}+  - **J2** is for SPI breakout. 
 +{{ :resources:eval:user-guides:circuits-from-the-lab:cn0241:CN0241-06-1024_setup.png?nolink&550 |}}
  
----- 
  
 ===== Installing the Evaluation Software ===== ===== Installing the Evaluation Software =====
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   - Click **Finish** to complete the installation\\ {{ :resources:eval:user-guides:circuits-from-the-lab:cn0241:cn0241-8.png?nolink&500 |}}   - Click **Finish** to complete the installation\\ {{ :resources:eval:user-guides:circuits-from-the-lab:cn0241:cn0241-8.png?nolink&500 |}}
  
-----+ 
 + 
 + 
 +===== Running the System ===== 
 + 
 +  - Apply power to the 6V supply (or wall wart) connected to the [[ADI>CN0241|CN0241 Evaluation Board]]. 
 +  - Connect USB cable from PC to the USB miniconnector on the SDP-B board. 
 +  - Launch **CN0241 Evaluation Software** from the default installation location. 
 +  - Click **“Connect”** to start communication between SDP-B and [[ADI>CN0241|CN0241 Evaluation Board]] 
 +  - Upon successful connection, select SDP connector A 
 +  - Set the desired number of samples. 
 +  - Turn the 5 V/2.5 A dc supply on when data is ready to be acquired.  
 +  - Adjust the voltage output accordingly to output the amount of current needed to be measured 
 +  - Click **“Sample Data”** to start acquisition of data.
  
 ===== Using the Evaluation Software ===== ===== Using the Evaluation Software =====
 ==== Main Window ==== ==== Main Window ====
-{{ :resources:eval:user-guides:circuits-from-the-lab:cn0241:cn0241-mainwindow.png?nolink&600 |}} +{{ :resources:eval:user-guides:circuits-from-the-lab:cn0241:cn0241-main.JPG?nolink&700 |}} 
-  - **Title Bar** +  - **Connect** Button - Starts the connection between the [[ADI>CN0241|CN0241 Evaluation Board]] and [[ADI>EVAL-SDP-CB1Z|SDP-B Controller Board]]. 
-    * **Connect** Button - Starts the connection between the [[ADI>CN0241|CN0241 Evaluation Board]] and [[ADI>EVAL-SDP-CB1Z|SDP-B Controller Board]]. +  - **Disconnect** Button -  Ends the connection between the [[ADI>CN0241|CN0241 Evaluation Board]] and [[ADI>EVAL-SDP-CB1Z|SDP-B Controller Board]]. 
-    * **Disconnect** Button -  Ends the connection between the [[ADI>CN0241|CN0241 Evaluation Board]] and [[ADI>EVAL-SDP-CB1Z|SDP-B Controller Board]]. +  - **Select SDP connector** - Selects which 120-pin connection of the SDP-B Board to use. 
-  - **Menu Bar** +  - **Sample Size** - Sets the number of samples. 
-    * **Select SDP connector** - Selects which 120-pin connection of the SDP-B Board to use. +  - **Sample Data** Button -  Starts the acquisition of measurement data.  
-    * **Sample Size** +  - **Save Data** Button -  Saves the acquired measurement data. 
-    * **Sample Data** Button -  Starts the acquisition of measurement data.  +  - **Sample Data** Tab\\ {{ :resources:eval:user-guides:circuits-from-the-lab:cn0241:cn0241-SD.JPG?nolink&400 |}}
-    * **Save Data** Button -  Saves the acquired measurement data. +
-  - **Selection Tab** +
-    * **Sample Data** Tab\\+
       * Shows the acquired measurement data in terms of ADC codes with respect to the samples.       * Shows the acquired measurement data in terms of ADC codes with respect to the samples.
       * By right-clicking within the area, more functions can be viewed. Graph palette can be hidden by deselecting it and also other items can be added such as plot legend, scale legend, etc.       * By right-clicking within the area, more functions can be viewed. Graph palette can be hidden by deselecting it and also other items can be added such as plot legend, scale legend, etc.
-    * **Histogram** Tab\\ +  - **Histogram** Tab\\ {{ :resources:eval:user-guides:circuits-from-the-lab:cn0241:cn0241-H.JPG?nolink&400 |}}
       * Shows the acquired measurement data in terms of Number of counts with respect to the ADC codes       * Shows the acquired measurement data in terms of Number of counts with respect to the ADC codes
       * The same as the previous tab, by right-clicking within the area, more functions can be viewed. Other items can be added such as plot legend, scale legend, etc.       * The same as the previous tab, by right-clicking within the area, more functions can be viewed. Other items can be added such as plot legend, scale legend, etc.
-    * **Configure** Tab\\ +  - **Configure** Tab\\ {{ :resources:eval:user-guides:circuits-from-the-lab:cn0241:cn0241-C.JPG?nolink&400 |}}
       * **AD7920 Mode** - Can choose between two modes:       * **AD7920 Mode** - Can choose between two modes:
         * **Power Down Between Conversions**          * **Power Down Between Conversions** 
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       * Closes the evaluation software.       * Closes the evaluation software.
  
-----+===== Schematic, PCB Layout, Bill of Materials =====
  
-===== Running the System =====+<WRAP round 80% download> 
 +[[adi>CN0241-DesignSupport|EVAL-CN0241-SDPZ Design & Integration Files]] 
 +  * Schematics  
 +  * PCB Layout  
 +  * Bill of Materials  
 +  * PADS project 
 +</WRAP>
  
-  - Apply power to the 6V supply (or wall wart) connected to the CN0241 evaluation board. +=====Registration=====  
-  - Connect USB cable from PC to the USB miniconnector on the SDP-B board. +<WRAP round tip 80% > 
-  - Launch **CN0241 Evaluation Software** from the default installation location. +Receive software update notifications, documentation updates, view the latest videos, and more when you register your hardware.  [[reg>EVAL-CN0241-SDPZ?&v=Rev A|Register]] to receive all these great benefits and more!</WRAP>
-  - Click **“Connect”** to start communication between SDP-B and CN0241. +
-  - Upon successful connection, select SDP connector used, either connector A or connector B. +
-  - Set the desired number of samples. +
-  - Turn the 5 V/2.5 A dc supply on when data is ready to be acquired.  +
-  - Adjust the voltage output accordingly to output the amount of current needed to be measured +
-  - Click **“Sample Data”** to start acquisition of data.+
  
 +// End of document //
  
resources/eval/user-guides/circuits-from-the-lab/cn0241.1505463821.txt.gz · Last modified: 15 Sep 2017 10:23 by Trecia Agoylo

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