Current Amplifiers
See Also: Amplifiers, RF Amplifiers, Preamplifiers, Audio Amplifiers, Voltage Amplifiers, Transconductance Amplifiers, Op Amps, Klystron, Instrumentation Amplifiers, Distribution Amplifiers
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Primary Current Injection Kits
During installation,testing,especially if the protective gear is connected to the power line via a current transformer it is advisable to use our Primary Injection Test Set. Keeping this in mind a wide range of Primary Current Injection Test Sets are being manufactured by "NMC”.
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Power Amplifiers
RF Range
The RF power amplifier range from Laplace is specifically designed for EMC Immunity testing. These are compact units with characteristics matched to the requirements of IEC standards.
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High Power Precision Current Sensing Resistors
HPCR4T
High Power Precision Current Sensing Resistors of HPCR4T designed with four terminals, are distinguished by excellent long term stability & TCR. The Kelvin connections of this device allow for high precision measurements even with low resistance values. HPCR 4T has a non-inductive copper manganin element inserted into the ceramic case and finally sealed with a cement molding.
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AC and DC Current Sources
Programmable AC and DC current sources that provide precise, low noise, stable currents for a number of applications.
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Amplifier Module
LNAM-FBX
Ultra-low-noise voltage amplifier module (LNAM) with ac coupled FET input allowing measurements between 1 Hz and 20 MHz. High gain precision and low distortion are achieved by using internal negative feedback and >1000 V/µs output stages.
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30 Amps, 50 MHz BW Current Probe - AC/DC , 50 Amp Peak Pulse
CP030
Teledyne LeCroy current probes are available in a variety of models for a wide range of applications. The full range of Teledyne LeCroy current probes includes models with bandwidths up to 100 MHz, peak currents up to 700 A and sensitivities to 1 mA/div. Teledyne LeCroy current probes are often used in applications such as the design and test of switching power supplies, motor drives, electric vehicles, and uninterruptible power supplies.
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Current Transformers & Bushings
Measurements International Ltd.
AC Current Transformer, Reference Standard for the Calibration of Precision CTs, Currents as high as 10,000 A, Portable with carrying handle for smaller CTs, Wheels on heavier CTs, Passive or Electronically Aided Compensation.
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Low Noise Amplifiers
Electronic component that amplifies a very low-power signal without significantly degrading its signal-to-noise ratio (SNR).
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Calibrator, Calibrated w/D & U, Current, 185 mm, 78 mm, 38 mm
72-6694 CAL DU
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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RF Amplifier
SA802
Hangzhou Softel Optic Co., Ltd.
SA802 unidirectional user amplifier is applicable for 1GHz CATV FTTB, FTTH transmission network. It is beautiful and durable with mature and reliable components and circuits, low power consumption, all-metal housing, etc.
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Difference Amplifiers
A difference amplifier is a special purpose amplifier designed to measure differential signals, otherwise known as a subtractor. A key feature of a difference amplifier is its ability to remove unwanted common mode signals, known as common mode rejection (CMR). Unlike most types of amplifiers, difference amplifiers are typically able to measure voltages beyond the supply rails, and are used in applications where large dc or ac common-mode voltages are present. They are ideal for current and voltage monitoring. Analog Devices offers a range of difference amplifiers, optimized for low distortion, low power, or high voltage performance.
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RF High Power Amplifier Modules
Analog Devices MMIC-based GaN and GaAs power amplifiers cover the low hundred MHz frequency range up through and including components in the Ka-band (29 GHz to 31 GHz). Our portfolio also includes GaN-based power amplifier modules with output power exceeding 8 kW. Designed for excellent linearity at high output power, our power amplifiers maintain good heat dissipation and high reliability at elevated temperatures for the wide variety of test, radar, and aerospace and defense applications that they are used in.
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PXI/PXIe Battery Simulator Module, 2-Channel, Simplified Current Sink, 750 V Isolation
43-752A-903
Targeting EV, automotive, aerospace, energy storage and electric aircraft applications, the new battery simulator modules occupy a single PXI slot. These 2-channel battery simulators are capable of supplying up to 7 V and 300 mA per channel. The channels are fully isolated from ground and from each other, allowing series connection to simulate batteries in a stacked architecture.
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Current Limiting Resistors
Current Limiting Resistors are designed for limiting the flow of current to some predetermined value and are used mainly to to keep flowing current within certain intervals while controlling the circuit.
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Eddy Current Testing
Shanghai Xianda Denshijiki Industry Co.,Ltd
And the eddy current generated on the specimen by the specimen by the action of the magnetic field can not be detected (defect) and the change due to the influence of the material is detected.
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PXI/PXIe Wide Current Range Multiplexer Module, Dual 12-Channel, 1-Pole
42-514-107
The 40-514-107 (PXI) and 42-514-107 (PXIe) are low density multiplexers in dual 12-channel, 1-pole configuration. They are capable of switching a wide range of current, from 10 μA to 2.5 A at 220 VDC/250 VAC. The current capability of the module permits the use of a single module type for both low and medium current test applications.
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Triaxial Cable For Current Higher Than 1 A (1.5 M Or 3 M)
16493L
16493L can be used as a general purpose triaxial cable for high current applications up to 4.2 A DC and 200 V. It can also be used for low current applications down to the sub-pA level.
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Driver Amplifiers (< 3 W)
Qorvo's driver amplifiers are designed to provide good linear or efficiency performance for gain stages prior to the final power amplifier in a transmitter chain. These products support frequencies up to 46 GHz, using process technologies such as InGaP HBT, power pHEMT, E/D pHEMT and GaN.
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Primary Current Injection Test Set
DDG / 580
Wuhan Huatian Electric Power Automation Co., Ltd.
It is suitable for large current places in power system and laboratory.
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Current Probe
DCP-BTA
Vernier Software & Technology, LLC
The Current Probe measures DC and low-frequency AC currents up to 600 mA. Use Current Probes in combination with Differential Voltage Probes to investigate Ohm's Law and explore series and parallel circuits. The 0.1 shunt resistor minimizes changes to your circuit. If currents will exceed 1 A, use the High Current Sensor.
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Operational Amplifier
Op Amp Series
The amplifier is capable of operating at supply voltages from 0.9V to 3V with specified specs at 1V and 1.8V single supply.The input common mode range extends to both power supply rails without the offset glitch and input bias current phase reversal inherent to most rail to rail input amplifiers.
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Low Voltage DC / Battery Powered High Voltage Amplifiers
WMA-005 And WMA-005LF
The Falco Systems WMA-005 is a high voltage amplifier that runs from an 24 - 30V DC power supply and can be battery powered if required, e.g. for use in a Faraday cage. Its internal high voltage generator is inductor-free and hence does not spread magnetic interference in sensitive experimental setups. The output noise is impressively low at 3mVrms. For extremely low noise applications where bandwidth is not an issue, a dedicated WMA-005LF version is available that contains an output low pass filter capacitor which reduces the bandwidth to 50Hz, but makes the noise drop to below 0.1mVrms. This bandwidth-limited amplifier is ideal for MEMS or piezo positioning with manual voltage adjustment.
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Shortwave Power Amplifier
OM2501A (OM3501A)
The OM Power model OM2501A and OM3501A are designed for all short wave amateur bands from 1.8 to 29.7 MHz (including WARC bands) and all modes. OM2501A is equipped with a FU728F or GU84B ceramic tetrode and OM3501A is with GU78b ceramic tetrode.
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Zero Phase Current Transformer
MZL-45
MULTI MEASURING INSTRUMENTS Co., Ltd.
Split-core type for measuring zero phase current
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Pulsed Fiber Amplifier
MOPA
These light sources are compact Master Oscillator - Power Amplifier (MOPA) structures that can be directly modulated in a defined operating range of repetition frequency and pulse power. The standard products operate in the wavelength range around 1.5 µm at a repetition frequency > 6 kHz and a pulse energy of 10 µJ/50 ns (200 W peak power).
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Saluki SE2031 DSP Lock-In Amplifier
SE2031 Digital Lock-in Amplifier provides an excellent performance within its bandwidth from 1 mHz to 10 MHz. With the advantage of the latest digital signal processing technology and high-speed 16-bit ADC, SE2031 can easily detect the phase and the magnitude of weak signals overwhelmed by various large noise. The performance of SE2031 is as good as other lock-in amplifier brands, even better in some certain parameters, such as measurement accuracy, SNR, dynamic reserve. Otherwise, SE2031 integrates some special functions like multiple harmonic measurement, which meets the needs of scientific research and industrial application well.
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AC Current Shunts
CSA Series
Ohm-Labs’ CSA series of ac current shunts are designed as laboratory standards for ac current measurement up to high frequencies.
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PXI/PXIe Battery Simulator Module, 4-Channel, V/I Readback, Simplified Current Sink, 750 V Isolation
43-752A-912
Targeting EV, automotive, aerospace, energy storage and electric aircraft applications, the new battery simulator modules occupy a single PXI slot. These 4-channel battery simulators are capable of supplying up to 7 V and 300 mA per channel. The channels are fully isolated from ground and from each other, allowing series connection to simulate batteries in a stacked architecture.
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4 (High Current) D/A Outputs (±40 VDC or +100 mA)
DA3
The DA3 module features 4 high-current D/A output channels with a full-scale range of ±40 VDC or ±100 mA (max). The DA3 provides either voltage or current control loop modes that are programmable for the particular application.
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PC Based High Current Test Set for Circuit Breakers and Temperature Rise Test Equipment
This equipment comprises of high current source for testing of circuit breakers with additional facility for temperature rise testing (thus incorporating testing for moulded case, vacuum & air circuit breakers as per IEC 60947-2). The system integrates a servo controlled source with closed loop current feedback to maintain the current constant. It has the necessary instrumentation for maintaining current at full load & other conditions arising in testing at high current. The bench has a PC based control system with temperature data logger (24 channel with ch-ch isolation amplifiers). The data logger displays as well as stores a set of temperature values with time.
