Current Sources
See Also: Programmable Current Sources, Battery, Voltage Current Sources
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Product
SpikeSafe DC / Continuous Pulsed Current Sources
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The Vektrex SpikeSafe™ DC / Continuous Pulse (DCP) Current Sources provide reliable DC or pulsed drive for LED or laser diode reliability testing, IESNA LM-80 maintenance testing, and other test applications requiring DC or continuous pulse current. Models support currents from 500mA to 60A and compliance voltages from 50V to 400V. All models feature individual channel control, accurate pulsing over long output cables, precise current, precision pulsing for improved measurement repeatability, and high power density — typically 6.4kW-8kW.
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Current Sources
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Innovar Current Sources are the standard in the circuit breaker industry. Our Current Sources supply regulated current from 1 amp to 100,000 amps with incredible accuracy, along with providing a full set of features that is unmatched by any other Current Source in the market.
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Precision Current Sources
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DC Precision Current Sources provides precise and very stable output currents from 3 A to 10,000 A. The 6623A-PCS Series provides the best uncertainties of any DC high current sources (i.e. < 5 ppm of precision and stability at 1000A). In addition this Series is modular and initial output currents can be expanded at any time.
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Product
DC Precision Current Sources
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DC Precision Current Sources provides precise and very stable output currents from 3 A to 10,000 A. The 6623A-PCS Series provides the best uncertainties of any DC high current sources (i.e. < 5 ppm of precision and stability at 1000A). In addition this Series is modular and initial output currents can be expanded at any time.
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Product
Precision Pulsed Current Sources
SpikeSafe Performance Series
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SpikeSafe™ Performance Series Current Sources supply DC and precision continuous or single pulse current for light measurement and other applications. With sustained output power and no duty cycle limitations, Performance Series Current Sources support a broad range of applications.
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AC and DC Current Sources
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Programmable AC and DC current sources that provide precise, low noise, stable currents for a number of applications.
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PXI-2565, 16-Channel, 7 A, SPST PXI Relay Module
777754-01
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16-Channel, 7 A, SPST PXI Relay Module—The PXI‑2565 is a general-purpose switch module that features independent single‑pole single‑throw (SPST) Form A armature relays. It delivers high-current switching of DC power supplies, AC line power, and AC/DC current sources. The PXI‑2565 is fully software programmable and supports multiple instrument synchronization.
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Product
Current Integrated Sources
CIS
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The CIS current integrated source was designed to provide a stable alternating current source for the electricity meter test equipment, and in laboratories. The output current is isolated and independent from the mains voltage. Different CIS versions are available depending upon the values of output power and output current required.
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Solar Array Simulator DC Module, 130V, 5A, 600W
E4362A
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The Keysight E4362A is a 600W solar array simulator DC power module that simulates the output characteristics of a solar array. The E4362A is primarily a current source with very low output capacitance. It offers fast I-V curve changes allowing you to accurately simulate the output of different solar arrays under various environmental conditions (ex. temperature, age, eclipse, spin etc.). The E4360 gives you the flexibility to operate it in two ways:
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Product
PXI Isolated Single Channel Voltage/Current Source, 100V
M9186A
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The V/I source lets you source a voltage and measure the resultant current, or source a current and measure the resultant voltage. It consist of two separate amplifiers, denoted "low" and "high" that share a common output connection. The "low" amplifier provides voltages in the range of 16 volts at up to 200ma and the "high" amplifier provides voltages in the range of 100V at up to 20mA.
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Product
20-Channel SPST Power Switch Card
1260-120
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Each channel of the 1260-120 can switch up to 13A, 250VAC or 10A, 125VDC; its switching capability makes it the ideal solution for applications requiring high-current switching of AC power, DC power supplies, and AC or DC current sources.
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Secondary Current Injection Test Trolley
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SCR ELEKTRONIKS have developed SECONDARY CURRENT INJECTION TEST TROLLEY for Switchgear items, CT manufacturer and where three phase current application is called for. It is low Voltage, 3 phase Current source with control circuitry, digital read out for test current and trip time measurement. We can select different CT ranges for each phase independently and adjust the current as per the required test Current.
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PXI Battery Simulator Modules
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These PXI battery simulators are designed to simulate the power supplies of portable battery powered equipment and the single cell (model 41-753) is particularly suitable for cell phone testing. These modules can source current to simulate a battery supply or sink current to simulate a battery under charge.
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Meter Test Board
WECO 2150
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Model 2150 automated test system is a fully ANSI compliant testboard that uses a single voltage and three independently controlled isolated current sources to test all electromechanical and solid state meters up to 50 Amps. Utilizing a precision laser optics system, the Model 2150 can test meters through the most grime-coated covers with unfailing accuracy. This same laser technology makes it possible to test using the disk’s edge without wasting time with the tricky optics adjustments found with other test systems.
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Pulsed Source Measure Unit
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The SpikeSafe SMU is a precision pulsed source measure unit that precisely sources pulsed current and simultaneously digitizes voltage. Optimized for precise and repeatable high-power LED and laser testing, SpikeSafe™ SMU (Source Measure Unit) current sources deliver precise pulsing with low microsecond rise times, low-jitter triggering and integrated digitizer for more accurate and repeatable high-power LED and laser testing.
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Temperature Rise Test Panel
2000A
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SCR ELEKTRONIKS have developed “TEMPERATURE RISE TEST BENCH FOR MEDIUM VOLTAGE SWITCH BOARDS” to measure rise in temperature at various points as mentioned in standard at junctions. The set-up consists of a True RMS Constant Current Source (to maintain the Current within + / - 1 % of set value with Digital Indication), PC based control system, Temperature data logging on PC, Servo-Controller and other indications. Digital voltmeter Primary Voltage) indicates the position of auto transformer (variac).
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AC-DC High Voltage Power Supplies
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These modular High Voltage supplies may be used as constant voltage or constant current sources. They may be remotely programmed by means of either voltage or resistance, and have provisions for remote monitoring and output inhibiting. All control and monitoring connections are on a pluggable terminal block that functions as a connector, providing wiring convenience and permitting easy and rapid connect/disconnect. Outputs are arc/short circuit protected.
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Product
Benchtop Measurement Bundle With SMU
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The Benchtop Measurement Bundle provides a PXI Express- and Thunderbolt™-based measurement system that features a chassis with a high-bandwidth, all-hybrid backplane. With the SMU, you can make use of precise voltage or current sourcing and measurement capabilities for PXI systems. Additionally, you can use analog-to-digital converters to help you perform high-precision measurements.Thunderbolt is a trademark of Intel Corporation or its subsidiaries in the US and/or other countries.
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MAGNESIUM ANODE SIMULATOR
CS-1
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The CS-1 portable Magnesium Anode Simulator is an ideal DC current source that will allow the user to see what the addition of a magnesium anode on their system will do to Pipe to Soil measurements and other C.P. tests.
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Test Bench For Circuit Breaker
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SCR ELEKTRONIKS have developed Test Bench for Circuit Breaker to test 2, 5 & 10 at a time. Panel is provided with constant DC current source.
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Power Supplies
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A power supply is an electrical device that supplies electric power to an electrical load. The main purpose of a power supply is to convert electric current from a source to the correct voltage, current, and frequency to power the load.
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Four Terminal Precision Resistors
AH
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A-H resistors are constructed with four terminal, isolated voltage and current connections(.i.e. Kelvin Connection) making them suitable for very precise current measurements, current limitations and current regulation in power units, current sources and electronic loads.
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Calibrator, Calibrated w/Data, Current, 185 mm, 78 mm, 38 mm
72-6694 CAL D
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The 72-6694 CAL D from Tenma is a current calibrator. It provides quality and accuracy of handheld calibrator of precision current source. It features large LCD display (maximum display counts 1999, 13mm (0.5") digit size). The current calibrator has 006P DC 9V, MN1604/PP3 battery or equivalent alkaline type or heavy duty type power supply. The dimension is 185mm × 78mm × 38mm (7.3" × 3" × 1.5") and weight is 265g/0.58lb (including battery). It has adjustable 0 to 24mA current source, 2 ranges (0 to 19.99mA (0.01mA display resolution, ±(0.25% FS + 1d) accuracy), 0 to 24mA (0.1mA display resolution, ±(0.5% FS + 1d) accuracy).
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Magnetic System
NMR-EA300 System
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The NMR-EA300 system is the reference for calibrating magnetic sensors. It allows to generate an absolute magnetic field at <±10mG (0.1 uT) without temperature drift (<0.1ppm/C°) over a range from 14mT to 3T. This system is composed of an EA300 electromagnet with NMR poles, a MPU-16U ±150A ±70V current source of class 1ppm and a NMR20 Teslameter with a magnetic field controller (FR020).A thermostat chamber can be installed in the air gap (Optionally available on 50mm and 70mm gap poles).
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Calibrator, Calibrated w/D & U, Current, 185 mm, 78 mm, 38 mm
72-6694 CAL DU
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The 72-6694 CAL DU from Tenma is a current calibrator. It provides quality and accuracy of handheld calibrator of precision current source. It features large LCD display (maximum display counts 1999, 13mm (0.5") digit size). The current calibrator has 006P DC 9V, MN1604/PP3 battery or equivalent alkaline type or heavy duty type power supply. The dimension is 185mm × 78mm × 38mm (7.3" × 3" × 1.5") and weight is 265g/0.58lb (including battery). It has adjustable 0 to 24mA current source, 2 ranges (0 to 19.99mA (0.01mA display resolution, ±(0.25% FS + 1d) accuracy), 0 to 24mA (0.1mA display resolution, ±(0.5% FS + 1d) accuracy).
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Product
LED/IGBT Driver
SiC/GaN
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Mornsun Guangzhou Science & Technology
MORNSUN offers high quality IGBT driver, LED driver and driver power module for IGBT driver and SiC/GaN gate driver, which feature a compact design, are energy-efficient and robust with high quality at an affordable price. Especially MORNSUN LED driver is a step-down constant current source for driving high-power LED providing high efficiency, wide input voltage range, high temperature working capacity and complete functions. All of these driver power modules are applicable for multiple commercial and industrial applications.
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Precision Current Sources
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HighFinesse Precision Current Sources have been developed for experiments and quantum technologies in the areas of cold-atom and solid state physics. The linearly regulated BCS (Bipolar Current Source) and UCS (Unipolar Current Source) series deliver highly stable, low noise source currents for high precision magnetic field control. The current output is floating or is on a used defined potential. Ultrafast response to control signals and trigger functions, clear grounding, connection and signal isolation schemes make the integration of the current sources into complex experimental systems easy.
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Product
Turns Ratio Meter
Model TRM200
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Turns Ratio Meter Model TRM200 is widely used in transformer industry in manufacturing and repairing service. It directly display the ratio of LT turns & HT turns. It is capable to measure turns ratio till 1:1200. Turns ratio meter is designed to be a rugged and reliable. It is equipped with stable 250mA source. The design is based upon in-house invented & patented technology. TRM200 has also option for 1amp current source on demand.
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Product
50Hz-100kHz LCR Meter
11022/11025
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Chroma Systems Solutions, Inc.
0.1% basic accuracyTransformer test parameters (11025), Turns Ratio, DCR, Mutual Inductance0Hz, 60Hz, 100Hz, 120Hz, 1kHz, 10kHz, 20kHz, 40kHz, 50kHz, 100kHz test frequencies21ms measurement time (≥100Hz)Agilent 4263B LCR Meter commands compatible4 different output resistance modes selectable for non-linear inductor and capacitor measuringHigh resolution in low impedance(0.01mΩ) and high accuracy 0.3% till 100mΩ rangeAdjustable DC bias current up to 200mA (constant 25Ω) (11025)1320 Bias Current Source directly control capability0.01mΩ ~ 99.99MΩ wide measurement range (4 1/2 digits)Dual frequency function (11022 option) for automatic productionBIAS comparator functionComparator function and 8/99 bin-sorting functionPass/fail judge result for automatic productionHandler interface trigger edge (rising/falling) programmableTest signal level monitor functionStandard RS-232, GPIB, and Handler I/FOpen/short zeroing, load correctionLabView® Driver
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Product
Pt RTD Temperature Monitor
SIM923
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Stanford Research Systems, Inc.
The four channels in the SIM923 have independent, stable 1 mA current sources to provide sensor excitation. Sensor resistance is determined ratiometrically with a half-bridge circuit consisting of the sensor and an internal reference resistor.




























