将电源与回顾图一起使用

介绍

本指南解释了波形的使用Power Suppliesinstrument for devices where it features a readback plot. This instrument is used to configure a Digilent Test & Measurement Device's variable power supplies. The instrument is also referred to as theSupplies在波形中。在模拟发现Pro（ADP5250）等设备上Supplies仪器将看起来像您在下面的指南中看到的。

If you have a different Digilent test and measurement device, take a look atUsing the Power Suppliesinstead.

Prerequisites

指导

1.打开耗材仪器

1.1

Plug in the Test & Measurement Device, then start WaveForms and make sure the device is connected.

如果在波形启动时没有连接到主机计算机的设备，则Device Manager将启动。确保设备已插入并打开，此时它将出现在设备管理器的设备列表（1）中。单击列表中的设备选择它，然后单击“选择”按钮（2）以关闭设备管理器。

Note:“DEMO” devices are also listed, which allow the user to use WaveForms and create projects without a physical device.

Note:The Device Manager can be opened by clicking on the “Connected Device” button in the bottom right corner of the screen (3), or by selecting “Device Manager” from the “Settings” menu at the top of the screen.

1.2

Once the Welcome page loads, in the instrument panel at the left side of the window, click on theSuppliesbutton to open thePower Suppliesinstrument.

1.3

Once the Supplies instrument opens, the window contains the controls for the three variable power supply rails, described in the next section.

2.使用供应

This section walks through setting up the power supplies and voltmeter to measure the DC output of the power supplies.

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.

2.1 Hardware Setup

Hardware Setup with Analog Discovery Pro (ADP5250)

可以通过将DMM探针接触到供应栏端子末端的金属垫，或者使用电缆首先将电源拆分到面包板上，可以用数字万用表（DMM）探测地面和电源导轨螺丝端子。或其他电路。将DMM设置为测量直流电压，使您可以轻松地测试电源导轨电压与波形指定的值匹配。

带有发现电源的硬件设置（DPS3340）

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.

2.2 Software Setup

No additional Software Setup is required.

2.3启用用品

When theSupplies仪器首先打开，所有电源均已禁用。

The “Master Enable” button can be used to switch all of the variable supplies off or on at once. While the Master Enable is off, each power supply can be set to a Ready or Off state, if the supply is ready, it will be turned on when the Master Enable is set to on.

确保将电源设置为已准备就绪，然后单击主启用按钮以打开它们。

3. Power Supplies User Interface Walk Around

本指南的其余部分描述了电源供应用户界面的其余功能。在跟随时，请尝试描述的电源控制，并回顾电压表，以查看它们如何影响变量供应的电压。

3.1回读图

The readback plot, including the readback channel names, the plot itself the control buttons above it, and the table of channel names on the left are used to measure the actual voltages and currents of each of the supplies over time. This graph helps you see that the power supplies instrument is outputting what you have set for the device.

3.2 Enable the Supplies

When theSupplies仪器首先打开，所有电源均已禁用。You will see a red X next to the主启用描述。这意味着所有耗材都关闭了。点击单词主启用will change the red x to a green check mark and turn on the supplies.

3.3 Controlling Individual Supplies

您可以关闭三个Suppliesby clicking on the individual checkbox and then clicking the主启用button. From the pull down menu you can select the voltage and the current limit. If you see a green circle next to the supply, it indicates that the supply is on.

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.

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主启用开启。

3.6 Supply Settings (Gear) Menu

每个电源的齿轮下拉列表包含该电源的限制设置。例如，如果将 +6V电源的最大电压设置为4V，则不可能调整高于4V的电源。

Next Steps

For more guides on how to use your Digilent Test & Measurement Device, return to the device's Resource Center, linked from theTest and Measurementpage of this wiki. If you want more information on the features and specifications of your device, refer to its Reference Manual and Specifications sheet, respectively, which can be found on its Resource Center.

如果电压值由Suppliesare significantly different from expected, please calibrate the device by following the校准指南.

有关波形的更多信息，请访问波形Reference Manual.

要获得技术支持，请访问Test and MeasurementDigilent论坛的部分。