Product category:
Power Supply ICs and Controllers
News Release from: International Rectifier | Subject: IRMCF371 etc
Edited by the Electronicstalk Editorial
Team on 16 November 2006
Platform is optimised for pump control
design
International Rectifier has introduced a sensorless sinusoidal motor control platform that delivers quieter operation and higher efficiency for variable-speed pump applications up to 300W.
International Rectifier has introduced a sensorless sinusoidal motor control platform that delivers quieter operation and higher efficiency for variable-speed pump applications up to 300W By effectively controlling pump operation over a wide range of flow requirements, variable-speed pumps can cut energy consumption by up to 50%
This article was originally published on Electronicstalk on 15 Feb 2001 at 8.00am (UK)
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1kV rad-hard power MOSFET saves satellite space
International Rectifier has introduced the world's first 1000V radiation-hardened power MOSFET.
MOSFETs improve 12V-input converter efficiency
Two new 20V HEXFET power MOSFET families from International Rectifier are designed to increase efficiency by up to 4% in 12V-input DC/DC convertors.
The latest iMotion integrated design platform consists of a mixed-signal controller, the IRMCF371, and companion intelligent power module for the power stage, as well as algorithms, development software, and design tools.
"Because variable-speed motor-driven pumps halve energy requirements, government legislation in many countries is driving the adoption of energy-efficient intelligent pumps, particularly in the water, waste-water, and building automation segments", said David Tam, Vice President of International Rectifier's Energy-Saving Products.
"The iMotion platform achieves higher reliability and system performance by better controlling system load changes, improving control pump operations, and providing control over a wide range of load conditions as well as enabling smooth startup conditions", he added.
Further reading
MOSFETs improve power density on both sides
New from International Rectifier are two TO-220-packaged HEXFET power MOSFETs that maximise power density and performance in primary- and secondary-side DC/DC convertor circuits.
Rad-hard MOSFETs protect and survive
With high radiation hardness and unparalleled single event effect (SEE) immunity, International Rectifier's new R5 MOSFETs are well suited for systems that must survive penetrating gamma rays.
Reference design simplifies high-efficiency PSUs
International Rectifier has released a reference design for its recently introduced IR1176 application-specific synchronous rectification IC (SRIC).
The IRMCF371 mixed-signal control IC for pumps integrates all the control and analogue interface functions required for sensorless sinusoidal control of permanent magnet synchronous motors (PMS) using DC link current measurements.
analogue functions on the IC include differential amplifier, dual sample and hold circuits, and a 12bit A/D convertor to sample the low-voltage signal across the DC link shunt.
The IRMCF371 incorporates IR's patented Motion Control Engine (MCE), an algorithm editor that eliminates coding.
An integrated 60MIPS, 8bit, 8051 microcontroller enables application layer software development, operating independently from the MCE, and does not compete for system resources such as interrupts or internal registers.
The embedded Analogue Signal Engine (ASE) integrates all the signal conditioning and conversion circuits required for single current shunt, sensorless control of a PMS motor.
The IRAMS06UP60B is a compact, intelligent power module optimised for electronic motor control in appliance applications that features a three-phase inverter with IC driver in a compact single inline package.
The device includes a shutdown function and overcurrent protection for safe operation.
Other built-in functions include current feedback via dedicated internal shunt resistors and a temperature sensing device.
Design tools include communications software running on the 8051 microcontroller that gives the PC-based MCEDesigner software access to the control parameters and system variables in the shared memory.
This allows modification of the controller set points and control loop gains and other constants without needing to modify or compile software.
The new iMotion integrated design platform for pumps is being sampled to qualified users.
The platform costs US $12.95 per unit in 10,000-unit quantities.
Prices are subject to change.
All devices are RoHS compliant.
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