Getting started with the Discovery Power Supply (DPS3340)

1. Hardware

To set up the DPS3340:

First, install the Digilent WaveForms software on your PC. See Installer Details for more information.
Connect the DPS3340 to your PC using a USB cable, 19V DC supply and power switch to ON position.

2. Software

See Installer Details for information about different command line options to install WaveForms.
See WaveForms for more information on using the WaveForms software.

3. Troubleshooting

The CV or CC LED is lit when the reading is close to the set value and within the specifications, otherwise the CV and CC LEDs blink to indicate error, short to ground or other supply rail.
The same condition is in both the application and the firmware, but the LEDs may light up differently because the Supplies window uses slower average value (default 1Hz) and device updates at 62.5kHz for quick response.
When the device is powered up but not connected to the computer and LEDs are lit. When the Wavegen is running both CV and CC LEDs are lit for the respective channel.

4. Power Supplies

The DPS3340 has three power supply channels.

Output 1 Output 2 Output 3

Voltage Current Voltage Current Voltage Current

Programming 1 V to 5 V 10 mA to 3 A -1 V to -15 V -10 mA to -500 mA 1 V to 15 V 10 mA to 500 mA

Accuracy 15 mV 15 mA 15 mV 8 mA 15 mV 5 mA

Resolution 0.37 mV 0.2 mA 1 mV 0.037 mA 1 mV 0.037 mA

Load regulation ±0.06 V/A ±0.15 V/A ±0.15 V/A

Readback -16 V to +16 V 0 to 3 A -16 V to +16 V 0 to -500 mA -16 V to +16 V 0 to 500 mA

Accuracy 30 mV 10 mA 20 mV 5 mA 20 mV 5 mA

Resolution* 8-0.5 mV 0.8-0.05 mA 8-0.5 mV 0.15-0.01 mA 8-0.5 mV 0.15-0.01 mA

*The 12bit ADC resolution - 16bit averaging resolution.

	Output 1	Output 2	Output 3
	Voltage	Current	Voltage	Current	Voltage	Current
Programming	1 V to 5 V	10 mA to 3 A	-1 V to -15 V	-10 mA to -500 mA	1 V to 15 V	10 mA to 500 mA
Accuracy	15 mV	15 mA	15 mV	8 mA	15 mV	5 mA
Resolution	0.37 mV	0.2 mA	1 mV	0.037 mA	1 mV	0.037 mA
Load regulation	±0.06 V/A		±0.15 V/A		±0.15 V/A
Readback	-16 V to +16 V	0 to 3 A	-16 V to +16 V	0 to -500 mA	-16 V to +16 V	0 to 500 mA
Accuracy	30 mV	10 mA	20 mV	5 mA	20 mV	5 mA
Resolution*	8-0.5 mV	0.8-0.05 mA	8-0.5 mV	0.15-0.01 mA	8-0.5 mV	0.15-0.01 mA

Note that the supplies are not floating, these have the same ground as the switching supply and connected to the computer through USB cable.

For more information visit the Resource Center.

See the Power Supplies tool.

5. Arbitrary Waveform Generator

The outputs can be used as AWG channels to generate current or voltage waveform. Each channel can either be controlled from Wavegen tool or from the Supply tool at a time, in the other tool it will show Busy status.

See the Wavegen tool.

6. Meter

The channel voltage and current readings can be monitored in the oscilloscope interface with up to 1kHz rate. This can work in parallel to the Supply tool control and monitoring.
See the Oscilloscope tool.