Keithley 2220-30-1 - Programmable Dual Channel DC Power Supply 30V, 1.5A

The 2220-30-1 Multi-Channel Programmable DC Power Supplies combine two and three channels of output power to cost-effectively characterize and test a wide range of devices, circuit boards, modules, and products that require more than one power source. The 2220-30-1 supplies provide two channels, with each channel capable of outputting up to 30V and up to 1.5A. The 2220-30-1 include two 30V/1.5A channels and add a 6V channel with up to 5A output for powering digital circuits. These multi-channel power supplies offer an excellent combination of performance, versatility, and ease of use to maximize the information from characterization or test as quickly and as easily as possible. They perform as effectively in automated test systems as they do in manual instrument configurations. The USB interface is standard on all models; the “G” versions add a GPIB interface.

Independent and Isolated Outputs

Since each channel in these multi-channel power supplies is completely independent and isolated from each other, these power supplies can be used to provide power to two circuits that are optically isolated or transformer-isolated from each other and have different reference points. Their isolated channels eliminate the need for a second power supply to power one of the isolated circuits.

Additionally, each channel can be independently controlled, so channels can be individually turned on and turned off at any time. Thus, these power supplies can be used to power up a circuit with multiple voltage levels (such as a digital circuit) that must be turned on in a specified time sequence. Furthermore, the timer capability allows you to set up unattended tests that turn off the channels after a programmed time interval to protect a device-under-test (DUT) from potential damage due to the continuous application of power beyond a recommended time interval. Both isolated and independent channels provide excellent versatility and flexibility to address a wide range of test applications.

Multi-Channel USB and USB/GPIB Programmable DC Power Supplies

Great accuracy is not limited to voltage; the basic current setting and readback accuracy is 0.1%, providing high-quality load current measurements. Also, with less than 3mV p-p noise, the power applied to the DUT’s load terminals is both accurate and of high quality.

Excellent accuracy, remote sensing, and a wide power output range make the Series 2200 Multi-Channel DC Power Supplies essential test instruments both on the bench and in test systems. Their ability to generate a wide range of output power and measure a wide range of load currents is supported with:
 

• The maximum output power of 45W on the 30V channels
• The maximum output power of 30W on the 6V channel
• Voltage setting and reading resolution of 1mV
• Current setting and reading resolution of 1mA

Configure the Channels to Double Output Voltage or Current or Create Bipolar Power Supplies

The two 30V channels can be combined if more than 30V or more than 1.5A is required. The two 30V outputs can be wired in series to enable an output of 60V with a maximum current output of 1.5A or can be wired in parallel to get up to 3A at 30V. In series or parallel configurations, the power supplies offer special display modes that indicate the actual voltage and current for the combined pair. It’s also easy to wire the outputs to make a ±30V bipolar supply and to maintain a user-defined ratio between the two outputs when using Tracking mode. These modes of operation extend the performance of the power supplies, while the display shows the actual outputs in these special modes to avoid any confusion or incorrect interpretation of the displayed data.

Use the two 30V channels to test a bipolar integrated circuit or a bipolar module over its specified voltage operating range.

Combine two channels in series to output up to 60V or combine two channels in parallel to output up to 3A. The Model 2220/2230 display will show the combined value.

Convenience Features Help Get Results More Quickly

These multi-channel power supplies offer a number of features that return results quickly and easily:
 

• A rotary knob, with user-selectable step size, makes it easy to check circuit response to changing voltage or current. Alternatively, a direct-entry numeric keypad can be used to simplify setting precise voltage and current values.
• Each channel has its own readout on the display. The voltage and current being delivered to each channel are visible at a glance. A bright vacuum fluorescent display provides excellent readability at a distance, at an angle, or under dim lighting conditions.