DC Sources
A highly repeatable and stable DC voltage and current source.
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Product
AC to DC Programmable Power Sources
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CEHCO can supply AC to DC Programmable Power Sources. We offer standard or customized solutions. The ADG-L Series is up to 1000 VDC maximum output. ADG-P Series is up to 2000 VDC maximum output.
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Product
Constant Current System
CCS-BTA
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Vernier Software & Technology, LLC
The Constant Current System is a DC power source with a built-in current probe designed for use in electrochemistry experiments.
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Product
Mobile Comm DC Source w/ Battery Emulation
66321B
Battery Simulator
The Keysight Mobile Communications DC Source 663xx series offers several features ideal for testing wireless and battery powered devices. Excellent voltage transient response ensures maximum test-system throughput by minimizing device shutdowns due to significant voltage drops in the test wiring. Built-in advanced measurement system to accurately measure battery current drains when the device operates in different modes and a Keysight-developed feature that enables cellular telephone manufacturers to detect permanently and intermittently open-sense wire connections.The Keysight 66321B mobile communications dc source provides fast transient response, exceptional sourcing, output resistance programming, and precision measurement. This product is specially designed for testing next generation digital wireless communications products. The 66321B mobile communications dc source offers a new capability that simulates the internal resistance of a battery or battery pack. Additionally, these high performance models offer improved transient response and stable output operation with either short or long load leads.
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Product
Handheld Turns Ratio & Winding Resistance Tester
TWR-H Series
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Handheld TWR-H device is DV Power single-phase instrument designed for measuring transformer winding resistance and turns ratio.The instrument has two output DC sources for measuring transformer winding resistance. The first DC source can output up to 2 A DC and is used for injecting current to the transformer’s high voltage winding. The second DC source can output up to 10 A DC and is used for testing the transformer’s low voltage winding. This is especially useful when measuring winding resistance of distribution transformers. These transformers have large turns ratio and therefore a big difference between resistances of high voltage and low voltage windings. Upon the winding resistance test, it is also possible to demagnetize the transformer core. The demagnetization process is completely automatic and safe.Together with the turns ratio, the instrument also measures excitation current and phase shift. This enables detecting transformer core or winding turns failures which cannot be spotted by measuring turns ratio only. The instrument can output test voltage up to 40 V AC for this test, but it can also output a very low test voltage of 1 V AC which is necessary for turns ratio verification of the majority of current transformers.TWR-H is powered by an internal Li-Ion battery. Up to 100 tests can be performed with a fully charged battery.
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Product
Student New Power Supply
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A specialized, safe, and durable DC power source (often 0-18V, 3A-8A) designed for educational labs to teach electronics, featuring short-circuit protection and variable outputs.
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Product
Mobile Comm DC Source w/ Battery Emulation, DVM
66321D
Battery Simulator
The Keysight Mobile Communications DC Source 663xx series offers several features ideal for testing wireless and battery powered devices. Excellent voltage transient response ensures maximum test-system throughput by minimizing device shutdowns due to significant voltage drops in the test wiring. Built-in advanced measurement system to accurately measure battery current drains when the device operates in different modes and a Keysight-developed feature that enables cellular telephone manufacturers to detect permanently and intermittently open-sense wire connections.The Keysight 66321D mobile communications dc source provides fast transient response, exceptional sourcing, output resistance programming, and precision measurement. This product is specially designed for testing next generation digital wireless communications products. The 66321D mobile communications dc source offers a new capability that simulates the internal resistance of a battery or battery pack. Additionally, these high performance models offer improved transient response and stable output operation with either short or long load leads. The 66321D dc source provides all of the capabilities of the 66321B with the addition of a built-in digital voltmeter.
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Product
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
Multi-Modular Cable Tester
MT-7051N
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Tests RJ45 TIA568A/B (AT&T 258A), 10 Base-T, Token ring, RJ-11/ RJ-12 USOC and Coaxial BNC cable.Automatically check cable for continuity, short, open and crossed wire pairs.Coaxial cable port indentifies cable conditions including shorts, shield opens and center conductor breaks.Main unit and remote allow one person testing.Power source: DC 9V BatteryDimension: 102x106x28 (mm)Cable not include
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Product
D/A Converters And Precision DC Source Instrumentation
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PXI Arbitrary Waveform and Programmable Function Generators as well as DC source cards and a precision standards module.
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Product
Photovoltaic Array Simulator, 15 kW, 1500 VDC
N8900APV Series
Simulator
The PV simulators are autoranging, programmable DC power sources that simulate the output characteristics of a photovoltaic array under different environmental conditions (temperature, irradiance, age, cell technology, etc.) enabling you to quickly and comprehensively test inverter MPPT algorithms and inverter efficiency. The DG8900 SAS control software creates and downloads solar I-V curves to a single output solution. For multiple outputs choose the DG9000 SAS control software which can be used with up to 12 N8900APV sources.
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Product
Power Electronics Test Solutions
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Chroma Power Electronics Test Solutions not only apply in the industries of Information Technology, Communication, Aerospace and National Defense, but also in energy efficient products such as Hybrid Automobiles, LED luminance devices, solar and fuel cells that are developed aggressively under the pressure of natural resource constraints. Chroma has a wide variety of instrumentation including AC Power Sources, DC Power Supplies, DC Electronic Loads, AC Electronic Loads, Digital Power Meters, and Automatic Test Systems that are ideal for power input/output terminal tests and dynamic simulation.
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Product
Oil Resistivity Test System / Million Meg Ohm Meter (MM1)
OTD-45
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UDEYRAJ ELECTRICALS PRIVATE LIMITED
Model : OTD-45OTD-45 is single self contained unit containing oil test cell, high frequency induction heating with temperature controller/sensor; dielectric loss measuring bridge, AC test voltage source, SF6 filled standard capacitor; high resistance meter; DC voltage source and all digital circuits.
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Product
SparkFun Energy Harvester Breakout
LTC3588
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This breakout board uses the LTC3588 Piezoelectric Energy Harvester from Linear Technologies. This board can be used not only for harvesting piezoelectric energy, but solar energy as well. There is a bridge rectified input for piezo elements (PZ1 and PZ2) and a direct input (VIN) for DC sources. Both are clamped to 20V. In addition, the board can simply be used as a standalone nanopower buck regulator.
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Product
Variable AC/DC Power Supply
UPS S2
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The Vanguard Universal Power Supply Series 2 (UPS-S2) is designed and produced to meet a utility company’s substation needs for an independent AC/DC power source. Both the AC and DC Voltage sources are capable of supplying 10 amperes continuously.
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Product
Regenerative AC Load
61800
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Chroma Power Electronics Test Solutions not only apply in the industries of Information Technology, Communication, Aerospace and National Defense, but also in energy efficient products such as Hybrid Automobiles, LED luminance devices, solar and fuel cells that are developed aggressively under the pressure of natural resource constraints. Chroma has a wide variety of instrumentation including AC Power Sources, DC Power Supplies, DC Electronic Loads, AC Electronic Loads, Digital Power Meters, and Automatic Test Systems that are ideal for power input/output terminal tests and dynamic simulation.
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Product
Multi-function Desktop Calibrator
VA730
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Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD
Multi-function Desktop calibrator DC Voltage/Current Source.
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Product
Dual Mobile Communications DC Source
66309B
DC Power Supply
The Keysight Mobile Communications DC Source 663xx series offers several features ideal for testing wireless and battery powered devices. Excellent voltage transient response ensures maximum test-system throughput by minimizing device shutdowns due to significant voltage drops in the test wiring. Built-in advanced measurement system to accurately measure battery current drains when the device operates in different modes and a Keysight-developed feature that enables cellular telephone manufacturers to detect permanently and intermittently open-sense wire connections.
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Product
Resistance Meter
RM3542A
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High-speed resistance meter ideal for automated lines; compatible with super-small electronic components • Testing source: DC • Fastest measurement time: 0.9 ms • Minimum integration time: 0.1 ms • Finest resolution: 0.1 μΩ
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Product
ENA Vector Network Analyzer
E5061B
Vector Network Analyzer
Select the best configuration for your test needs from a wide variety of test set options: 100 kHz to 1.5 GHz/ 3 GHz, 2-port, 50 or 75 ohm, transmission/reflection or S-parameter test set Address a broad range of applications with the LF-RF option (Option 3L5/3L4/3L3): 5 Hz to 3 GHz, 2-port, 50 ohm, S-parameter test set, gain-phase test port, built-in DC bias source Combine network analysis and impedance analysis to customize your application in a single instrument (Option3L5/3L4/3L3 plus 005) Every spec verified, adjustments included Lock in support & peak performance from the start
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Product
20-Channel SPST Power Switch Card
1260-120
Switch Card
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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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
Phase Noise Analyzers
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The phase noise analyzer portfolio from Rohde & Schwarz offers an affordable, mid-range solution with high sensitivity and fast measurements as well as high-end ultra-high-sensitivity solutions with advanced measurements modes. Ideal for phase noise analysis and VCO tests, the industry-leading solutions enable two-path phase noise analysis with real-time cross correlation and fast VCO characterization with built-in low-noise DC sources. Additionally, high-end signal and spectrum analysis can be added into a single box.
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Product
AC and DC Power Sources
CFS100 Series
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The CFS100 Series programmable AC or DC output power sources are cost effective source of power for development, test and production applications requiring anywhere from 800VA or less to 4000VA of single phase AC or DC output.
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Product
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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Product
LED Power Driver ATS
8491
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1. DC Electronic Load : Chroma 6310A/6330A Series2. Transducer Unit/Module*1 : Chroma A849101/A849102, A849103, A8491043. Time/Noise Analyzer : Chroma 80611 & 80611N card4. Sytem Controller*2 : Industrial PC5. DC Source: Chroma 62000P Series6. Digital Power Meter : Chroma 66200 Series7. OVP/Short Circuit Tester : Chroma 806128. ON/OFF Controller : Chroma 80613*1 : A849101 transfers UUT output signal to voltage signal, and measure by 84911 LED power driver measurement card (200kHz). The optional 80611N Noise card is required for 20MHz ripplecurrent measurement.*2 : The controller includes both 84911 LED Power Driver measurement card and 84903 control card.- 84911: Measure rms current, dimming current/frequency/duty, timing, power & ripple current (200kHz)- 84903 : Provide BL control signal(DC level, PWM, SM bus), and enable ON/OFF signal.C Source : Chroma 6500/61500/61600 Series
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Product
Arbitrary Function Generators
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PXI Arbitrary Waveform and Programmable Function Generators as well as DC source cards and a precision standards module.
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Product
Battery Chargers
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DC Battery ChargersStep-Up & Step-Down DC Source Chargers and Equalizers These units provide up to 600 watts to charge a 12V or 24 V battery systems (1 or 2 banks) from a 12, 24, 32 or 36 volt source. The single-board design incorporates state-of-the-art switch mode technology for unmatched efficiency and ultra-quiet operation. Multiple stages of filtering reduce radiated or conducted noise to very low levels. All Series are capable of charging up to two independent banks of batteries.
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Product
Three-Phase Relay Test Equipment
AK-30
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AC voltage source with 4 channels, current source and aux with 6 channels. DC source can be used simultaneously. Amplitude, frequency and phase angle can be adjusted respectively, independently and continuously; Control via PC via Ethernet RJ45 interface
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Product
Controllable, Programmable Linear DC Source With Load
LAB / SLR
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*Linear laboratory power supply*Integrated electronic load*Automatic range selection*Linear regulated DC source with automatic range selection*Built-in electronic load*Short-term peak load operation 240 or 480 watts*Protection against short circuit, overload and overtemperature*Double current / double voltage through "autoranging"*Fast control times approx. 250µ
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Product
Multiple Output Bidirectional PSU
LAB-MOBI
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Electronic Test & Power Systems
The LAB-MOBI is a series of multi channel High Power Bidirectional PSUs. Each system is able to operate as either a DC Source or a DC Electronic Load. This integrated approach features high dynamics enabling the user to switch seamlessly between quadrants. When sinking energy from the unit under test the LAB-MOBI automatically inverts the DC to AC and synchronises this output to the grid. Dedicated application modes are available for battery cycling and emulation, which can be used to implement specific test routines. Other common applications the LAB-MOBI is used for include testing electric motors, fuel cells, super capacitors and solar panels. Max. Volt. Output 1000V,Min. Power 60kW, Max. Power 500kW.




























