About Power Supplies
A power supply is an electrical device that supplies electric power to an electrical load. The primary function of a power supply is to convert electric current from a source to the correct voltage, current, and frequency to power the load.

Keithley 2200 20 - 72V DC Power Supply Series
Single Output, 20 - 72V Maximum Voltage Series Range
The Series 2200 offers five models of DC power supplies with voltage outputs from 20V to 72V to address a wide range of power requirements. These supplies have both front and rear outputs for use on a bench or in a test system.

Keithley 2220/2230/2231 30V DC Power Supply Series
2 or 3 Outputs, 30V Maximum Voltage
The Keithley 2220G-30-1 power supply has two channels, with each channel capable of outputting up to 30V and up to 1.5A

Keithley 2230G 3 Channel Power Supply Series
195 / 375 Watt, 3 Channel, Programmable Power Supplies
The 2230G power supplies can power circuits that are optically isolated or transformer-isolated from each other and have different reference points. The isolated channels eliminate the need for a second power supply for powering one of the isolated circuits.

Keithley 2260B 360W, 720W & 1070W DC Power Supply Series
Analog Input, 360, 720 & 1080 Watts, Outputs up to 800V & 100A
Source a wide range of voltages and currents with the 360W, 720W, or 1080W Series 2260B Programmable DC Power Supplies. The 360W versions can output current of 36A, 13.5A, 4.5A, or 1.44A; the 720W models can output 72A, 27A, 9A, or 2.88A; and the 1080W instruments can output 108A, 40.5A, 13.5A or 4.32A.

Keithley 2280S-32-6 192W DC Power Supply
192 Watts, 32V Maximum Voltage
Series 2280S supplies deliver up to 192W of low output noise power and superior load current measurement sensitivity. Built-in plotting functions allow monitoring trends such as drift.

Keithley 2280S-60-3 192W DC Power Supply
192 Watts, 60V Maximum Voltage
Series 2280S supplies deliver up to 192W of low output noise power and superior load current measurement sensitivity. Built-in plotting functions allow monitoring trends such as drift.

Keithley 2281S-20-6 20V Battery Simulator
1 Output, 20 V Maximum Voltage
The 2281S-20-6 Dynamic Battery Simulator uses a model to emulate the response of a battery over its discharge cycle. Since the model can be based on the average current of the product that the battery will power, you can estimate battery life and analyze product performance over the life of the battery.

Keithley 2290 5,000V/10,000V High Voltage Power Supply Series
Single Out, 5,000V or 10,000V High Voltage Power Supplies
Series 2290 High Voltage Power Supplies are ideal for high voltage device and material testing, as well as high energy physics experiments. Choose the Model 2290-5 Power Supply for voltage outputs up to 5000V or the Model 2290-10 Power Supply for up to 10,000V.

Keithley 2300 Battery Simulating DC Power Supply Series
Single & Dual Outputs, Programmable Output Resistance
Testing portable, battery-operated devices under real-word conditions demands a DC power supply that can simulate a battery’s performance over a wide range of conditions. Series 2300 battery simulating power supplies can simulate both a battery's output resistance and output voltage response.

Tektronix PWS2000 18 - 72V DC Power Supply Series
18V, 32V or 72V, Single Output DC Power Supplies
The PWS2000 Power Supply Series is designed with the performance and intuitive operation you expect from Tektronix. Wide current and voltage ranges, plus 10 mV and 10 mA resolution, satisfy a wide variety of applications. Numeric keypads make voltage and current selection fast and accurate. Bright displays with large digits provide excellent readability.

Tektronix PWS4000 20 - 72V DC Power Supply Series
Single Output, 20 - 72 Volts DC Power Supply Series
With wide voltage and current ranges, the PWS4000 Programmable Power Supply Series makes a versatile addition to your bench. A basic voltage accuracy of 0.03% and less than 5 mVp-p noise means you can be confident in the power supply's output value.