Current Controllers

Controls & Controllers, Electrical Equipment & Systems, Electronic Components & Devices

Current Balancer comes in sizes from 5-250 kVA.

April 12, 2013

Current Balancer is designed for 3-phase motor applications where power source is supplying unbalanced current, causing excessive heat, and potentially premature failure. Using high-speed electronic tap switching design, unit precisely adjusts voltage which in turn will balance current to within 3% or less. Housed in NEMA-3R enclosure for outdoor installations, balancer is suited for submersible pumps used in municipalities supplying water in rural areas. Read More

Controls & Controllers, Electrical Equipment & Systems

Alternating Relay and Duplex Controllers manage pump runtimes.

September 23, 2010

Rugged ARM Series microprocessor-based controllers evenly distribute runtime by automatically alternating lead and lag loads between 2 pump sequences. Devices include inrush delay to prevent both loads from energizing simultaneously, and five UL913 intrinsically safe low-voltage/-current control switch inputs. Integral device logic allows outputs to function if one input fails to open or close, while hand-off-automatic switches enable manual operation if needed. Read More

Transportation Industry Products, Controls & Controllers, Electrical Equipment & Systems, Electronic Components & Devices

Linear Current Regulator and Controller suits automotive lighting.

June 15, 2010

Consisting of 8 linear programmable constant current sources, NCV7680 is designed for regulation and control of solid state rear combination lamps of vehicles. It supports LED driving current of up to 75 mA/channel as well as different brightness levels for stop and tail illumination. Operating in temperatures from -40 to +150°C, it has MSL 1 moisture resistance rating and is available in SOIC-16 Pb-free package. Unit also allows designers to set output current with one external resistor. Read More

Controls & Controllers, Electronic Components & Devices

LED Driver features dynamic headroom control.

April 27, 2010

Featuring 4 individual current regulator channels and input voltage up to 80 V, PowerWise® LM3464 drives up to 4 strings of LEDs with up to 20 LEDs per channel. High-voltage current controller works in conjunction with external N-channel MOSFETs and sense resistors to accurately drive current to each LED string. Dynamic headroom control feature monitors forward voltages of LED strings and dynamically adjusts LED supply voltage through power supply feedback to lowest level required. Read More

Controls & Controllers

Integrated Controller features 75 A power switching.

April 27, 2010

Designed to control Tungsten lamps, EZ-ZONE® ST offers single-phase, solid-state relay output from 40-75 A and phase angle power switching with soft-start to prevent high in-rush currents, load failure, or blown fuses. It also has temperature control, current monitoring, overtemperature protection, and field communications for banks of lamps used to create PV cells. Internal communications bus provides entry point for configuration/monitoring or location to access multiple controllers. Read More

Controls & Controllers

Laser Diode Controller meets laboratory requirements.

March 18, 2010

Offering stability for use with TO-can laser diodes and butterfly packages, Model 6100 provides precision current and temperature control for laser diode applications. Its 500/1,500 mA current supply range, along with 32 W temperature controller, suits demanding laboratory tasks. Bench top instrument incorporates DSP-based PID control and ultra-stable current control to achieve less than 0.001°C temperature stability and 1.3 µA (rms) ripple, respectively. Read More

Controls & Controllers, Electrical Equipment & Systems, Electronic Components & Devices

Flyback Controller operates at junction temperature of 150°C.

June 26, 2009

Available in 6-pin ThinSOT(TM) package, H-grade version of LTC3803-3 current mode flyback DC/DC controller can be powered by input ranging from 9-75 V. Unit maintains 300 kHz operating frequency and offers adjustable slope compensation for optimized transient response with minimum output capacitance, and soft-start function that minimizes inrush current/output voltage overshoot. Operating in -40 to +150°C temperatures, IC features 40 µA start-up and 240 µA quiescent current. Read More

Controls & Controllers, Mechanical Power Transmission

OEM Motor Drive provides positioning control.

April 17, 2009

Measuring 54 x 28 x 9 mm, Model EPOS2 36/2 controls brush DC motors as well as brushless EC motors, and is suited for single-axis and multiple-axis applications of miniature size. Plug-in module can be operated as speed controller or current controller in addition to position controller. Providing 36 V, 2 Amp operation, drive is designed to command and control within CANopen network, but can also communicate via USB or RS232 interface. Read More

Controls & Controllers, Electronic Components & Devices

Buck-Boost DC-DC Regulator Controller operates from 3-75 V.

May 19, 2008

Featuring programmable switching frequency up to 500 kHz, LM5118 emulated current-mode-controlled buck-boost DC-DC regulator controller offers smooth transition between buck and buck-boost modes. It features 2-switch configuration, peak efficiency of 95%, and operates from 12.6 V battery, but also functions if voltage falls momentarily down to 4 V. Drivers for high-side buck MOSFET and low-side boost MOSFET are included as well as current limit, thermal shutdown, and enable input. Read More

Controls & Controllers

Voice Coil Motor Driver comes with I²C serial interface.

November 6, 2007

Designed for camera auto focus and zoom applications, Model A3904 features 2.4-5.5 V operating voltage range, 127 mA maximum output current, and -40 to +85°C operating temperature range. Output current is programmed via I²C interface in 500 µA increments with clock rates up to 400 kHz, while I2C inputs set internal DAC output voltage used as reference for linear current control using MOSFET output sink transistor. Read More

Controls & Controllers

Solid-State Controllers promote magnet lifting capacity.

May 1, 2007

Designed to replace traditional contactors and discharge resistors, OptiCon magnet controllers utilize solid-state IGBTs that provide true control of electrical current to magnets. Three models, rated for 150, 250, and 350 A service, can be installed into new equipment or retrofit into existing systems. Each can be used with any magnet or magnet system, optimizing power delivered to magnet while minimizing excess heat. Controllers also eliminate occurrence of damaging voltage spikes. Read More

HVAC, Controls & Controllers

Modular Control System offers sample cycle time of 250 ms.

August 17, 2006

With 0.2% accuracy, DIN rail mount SRZ Control System provides selectable position proportional control, cascade control, as well as heat only and heat/cool control. True universal input includes 10 thermocouple types, RTD, voltage, or current. Single module may provide up to 4 channels of heat only or 2 heat/cool to which up to 16 modules may be connected. Alarm choices include loop break, heater break, and interlock. Communications are provided via serial Modbus RTU. Read More

Controls & Controllers

AC Current Controller protects from system failures.

June 5, 2006

Non-intrusive, isolated current-sensing Series 882 incorporates 2 A output relay switch with LED to indicate on/off status, enabling detection of AC current overload or underload to prevent damage. Relay also enables series to turn on alarm, shut down electrical system, and provide automatic warning alerts. Controllers are available in 12 current ranges from 0.2-1 A through 300 A, with 5-terminal barrier, 0.75 in. pass-thru hole, and operating temperature of -4 to +158°F. Read More

Controls & Controllers, Electronic Components & Devices

Current Loop Controller works with motorized potentiometers.

December 21, 2005

Able to automate existing systems, MR267 remotely controls motorized potentiometer and/or rotary cam switch via 4-20 mA current loop, 0-2.5 V input, or external potentiometer. User-specified potentiometers provide absolute positional feedback information or function as variable resistor in analog control or bridge circuit. Rotary limit switches are programmed, via cams, to electrically control events or provide status at pre-stages. Read More

Controls & Controllers

PWM Controllers offer PFC shut-down feature.

February 4, 2005

Current Mode Controllers Series NCP1230 and NCP1231 allow power supply designers to shut-down power factor correction stage in light or no-load conditions. Units offer cycle skipping at light loads, internal ramp compensation, and frequency dithering. Both series are available in 65, 100, and 133 kHz frequency options. Series NCP1230 integrates 2.5 ms soft-start, while Series NCP1231 offers adjustable soft start and brown out function. Read More

Controls & Controllers, Electronic Components & Devices

Current-Mode Controllers suit 10-250 W power supplies.

November 5, 2004

Series SiP280x PWM Controllers serve as building blocks for converters in offline and dc-to-dc current-mode switching power supplies. Operating from 5 V with start-up and operating currents of 100 and 500 µA, respectively, controllers offer switching frequencies up to 1 MHz. They include internal soft-start mechanism and blanking function, which eliminates need for external filter components. Units are built on BiCMOS process and available in SO-8 or TSSOP-8 package. Read More

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