Agilent B2901/02/11/12A Precision Source/Measure Unit How to source continuous arbitrary waveform without any measurement This material shows how to setup the instrument to source continuous arbitrary waveform without any measurement using the B2901/02/11/12A, through example to source continuous sine wave, the amplitude and the period of which are 2 V and 1 s respectively. The waveform is created with 2,500 source data points in this example. Figure 1 and Figure 2 show the timing chart for the continuous sine wave source. A cycle of a sine wave is created by the List Sweep Mode of the B2901/02/11/12A with 2,500 source data points in TRIGGER layer. Then repeating a cycle of a sine wave enables you to source a continuous sine wave by specifying ARM count to “Infinity”. 0.05 Voltage [V] TSP 3 0 Voltage [V] 2 1 1 2 3 4 5 6 7 Number of data 8 9 10 0 TSP : Source Trigger Period -1 -2 -3 0 500 1000 1500 Number of data 2000 2500 Figure 1. A cycle of a sine wave created with 2,500 source data points in TRIGGER layer V 0V Output Off State Output ON ARM Trigger Time Figure 2. Repeating a cycle of a sine wave by INFINITY ARM count It is required to abort the instrument when you’d like to stop sourcing continuous arbitrary waveform. This material also shows how to abort the instrument to stop continuous arbitrary waveform. Agilent B2901/02/11/12A Precision Source/Measure Unit Preparing the source data list in advance When you source some complicated waveform with the List Sweep Mode of the B2901/02/11/12A, it is convenient to create the source data list on a PC using the software of your choice and then transfer the source data list file to the B2901/02/11/12A via USB flash memory. TXT, PRN and CSV file format are available for source data list file. Step 1. Develop CSV file which includes 2,500 points source list data calculated by the formula below. Step 2. Save CSV file as “listdata.csv” to the root folder of your USB flash memory device.  2 x  1  v x   2  sin  2500   Step 3. Attach the USB flash memory device which “listdata.csv” file is saved to the USB port on the front panel of the B2901/02/11/12A. Agilent B2900A Quick I/V Measurement Software is also available to edit the source data list for List Sweep Mode. Please refer to the Agilent Web Site below for the detailed information about Agilent B2900A Quick I/V Measurement Software. http://www.agilent.com/find/b2900a Agilent B2901/02/11/12A Precision Source/Measure Unit Setting up the source condition Step 1. Press source. to edit the source function, and then select (1) Press Mode Step 2. Press Press (2) Enter Source Value to edit the limit value, and then enter 100 mA to set the limit value to 100 mA. (1) Press Limit Step 4. Press Sub-Panel. (2) Press VOLTS (V) to edit the source value, and then enter 0 V to set the source value to 0 V. (1) Press Source Step 3. to set the source function to the voltage (2) Enter Limit Value to change the keys shown in Assist keys, and then press (1) Press Show Sweep to show Sweep (2) Sweep Sub-Panel appears Agilent B2901/02/11/12A Precision Source/Measure Unit Step 5. Press , then press to change the keys shown in Assist keys. (1) Press (2) Press More... Step 6. Press to turn on List Sweep Mode. After turning on List Sweep Mode, you can see Source Shape which shows the list sweep mode. (1) Press LIST Step 7. Rotate and press Source Shape to edit Start value and press (1) Rotate and press Start value Step 8. Rotate and press to edit to open Load List Sweep Data dialogue. (2) Press Load to select “listdata.csv” file, and then press (1) Rotate and press listdata.csv file to select to load “listdata.csv” file. (2) Press OK to load listdata.csv file Agilent B2901/02/11/12A Precision Source/Measure Unit Now you have configured List Sweep Source Setup and can see the parameters bellow. Step 9. Press to show Trigger Sub-Panel. (1) Press Show Trigger Step 10. Press (2) Trigger Sub-Panel appears to edit the trigger type, and then select (1) Press Rotate to set the trigger type to MANUAL. (2) Press MANUAL to select the source trigger count and press to edit it. Then enter 2,500 to set the source trigger count to 2,500. (1) Rotate and press Source Trigger Count to edit (2) Enter Source Trigger Count Agilent B2901/02/11/12A Precision Source/Measure Unit Step 11. Rotate to select the source trigger period and press to edit it. Then enter 400 us to set the source trigger period to 400 us. (1) Rotate and press Source Trigger Period Step 12. Rotate to edit (2) Enter Source Trigger Period to select the source trigger source and press to edit it. Then press the source trigger source to TIMER. (1) Rotate and press Source Trigger Source to edit Step 13. If you aren’t on the top of the Function menu, press Step 14. Press (2) Press TIMER repeatedly to return to the top level. On the top level of the Function menu Any tree structure can’t be seen In the middle level of the Function menu Some tree structure can be seen and then press to open Trigger Configuration dialogue. (1) Press Trigger (2) Press Config to set Agilent B2901/02/11/12A Precision Source/Measure Unit Step 15. Press and select to specify the layer, the trigger parameters of which are configured. (1) Press Step 16. Rotate (2) Press ARM to select the arm count and press to edit it. Then press count to INFINITY. (1) Rotate and press ARM Count Step 17. Press to edit (2) Press INF. to make the modification effective. (1) Press OK to make the modification effective to set the arm Agilent B2901/02/11/12A Precision Source/Measure Unit Starting sourcing the continuous arbitrary waveform Step 18. If you aren’t on the top of the Function menu, press Step 19. Press repeatedly to return to the top level. On the top level of the Function menu Any tree structure can’t be seen In the middle level of the Function menu Some tree structure can be seen , , , and then press continuous arbitrary waveform. (1) Press Trigger (2) Press Initiate (3) Press Trans. (4) Press Ch 1 to start sourcing the Agilent B2901/02/11/12A Precision Source/Measure Unit Stopping sourcing the continuous arbitrary waveform Step 20. If you aren’t on the top of the Function menu, press Step 21. Press repeatedly to return to the top level. On the top level of the Function menu Any tree structure can’t be seen In the middle level of the Function menu Some tree structure can be seen , , , and then press continuous arbitrary waveform. (1) Press Trigger (2) Press Abort (3) Press Trans. (4) Press Ch 1 to stop sourcing the