Showing posts with label Power-Electronics. Show all posts
Showing posts with label Power-Electronics. Show all posts

Tuesday, March 15, 2016

WARP Speed IGBT - International Rectifier

IGBTs are voltage-controlled power transistors, that have higher current densities than equivalent high-voltage power MOSFETs.

WARP Speed IGBT - International Rectifier

IRG4PC40W IGBT IRF

IRG4PC40W - 600V Warp 60-150 kHz Discrete IGBT in a TO-247AC package

Features Include
  • 2 to 2.5 times the current density of MOSFETs 
  • Lower conduction losses at equivalent current rating compared to MOSFETs 
  • Reduced current tail for high frequency operation 
  • "Positive-only" gate drive 
Lower switching losses allow more cost-effective operation than power MOSFETs up to 150 kHz ("hard switched" mode)

Of particular benefit to single-ended converters and boost PFC topologies 150W and higher

Low conduction losses and minimal minority-carrier recombination make these an excellent option for resonant mode switching as well (up to >>300 kHz)

The IGBT in TO-247 delivers the same efficiency at full loadas the MOSFET in the larger TO-247 package.

Tuesday, April 22, 2014

Zero-Crossing-Triac-Driver-Optocoupler-MOC3041

Zero-Crossing-Triac-Driver-MOC3041

The MOC303XM and MOC304XM devices consist of a AlGaAs infrared emitting diode optically coupled to a monolithic silicon detector performing the function of a zero voltage crossing bilateral triac driver. MOC3041.

They are designed for use with a triac in the interface of logic systems to equipment powered from 115 VAC lines such as teletypewriters, CTRs, solid-state relays, industrial controls, printers, motors, solenoids and consumer appliances, etc.
  • Simplifies logic control of 115 VAC power
  • Zero voltage crossing
  • dv/dt of 2000 V/µs typical, 1000 V/µs guaranteed
Motorola used to make these then it was Infineon Technologies now Isocom also makes it

MOC3041 Zero Crossing Triac Output, 6 Pin

See the original Motorola Application below.

MOC3041 Zero Crossing Triac Output, 6 Pin

Ananth -

These were used by me to make solid state relays. Look at the circuits here Power Electronics Circuits. The were used to control Heaters from DC control signal from a Proportional Temperature Controller. The Magnetic Contactors can be avoided for lower powers. At higher powers SCR banks become a bit expensive.

The SSR has no mechanical wear and tear but heat up at high currents. So if we overrate by 5 Times then it is an excellent solution for lower power controls upto 5 Kilo Watts. The cycle time of Contactors must be 20-60 Seconds to make it last long. In a SSR a one second cycle time is possible as 10-20mS is the switching speed due to zero crossing.

Thursday, October 07, 2010

MPower Solutions -Engineering and Manufacturing

Custom Battery Packs, Battery Management Systems, Batteries 101, Battery Technology Encyclopaedia and Tutorial.

MPower Solutions - Battery Management

The site contains a comprehensive knowledge base about battery technology, battery applications, chargers and ancillary equipment.

MPower is an independent service company providing specialist design and manufacturing services to meet the portable power requirements of the European electronics industry.
  • Chargers & Charging
  • Battery Management
  • Cell Chemistries
Battery and Energy Technologies

Battery and Energy Technologies

The fuel cell relies on a basic oxidation/reduction reaction, as with a battery, but the reaction takes place on the fuel rather than the electrodes. The fuel cell produces electricity as long as the cell receives a supply of fuel and can dispose of the oxidized old fuel .

Woodbank Communications Ltd
Woodbank, South Crescent Road , Queens Park Chester, CH4 7AU United Kingdom.

Thursday, January 08, 2009

MIPAQ - IGBT Modules - Infineon

MIPAQ - IGBT Modules - Infineon

MIPAQ is a brandnew functional product family within Infineon's IGBT (Insulated Gate Bipolar Transistor) modules portfolio and as such dedicated to useful integration of electronics to power modules

The MIPAQ IGBT modules family counts 3 members with different levels of electronics integration/

One of the first family members is MIPAQ sense which integrates an IGBT sixpack, and fully digital current measurement with galvanically insulated output signals. The measurement principle uses the Sigma Delta method.

Current ratings of 50A, 75A and 100A are available.

Technical Features

  • PIM & PACK configurations
  • 1200V
  • Integrated special shunt
  • RoHs compliant
  • Integrated Sigma/Delta converter for current measurement
  • NTC included
  • 50A, 75A, 100A (PACK)
  • 50 A (PIM)

Infineon Technologies - Produces devices for applications including memory, power, microcontrollers, communications, and consumer products.

Monday, March 17, 2008

MAX8881and DS2490 Characterization for Cells

Rechargeable AA cells are very popular for a large variety of portable applications. The number of brands is also high, and the cell quality can differ considerably. Cell capacity is sometimes different from that specified, and the capacity often deteriorates dramatically after a limited number of discharge cycles. ....

See Maxim Application Note - Simple Characterization Circuit for Rechargeable AA Cells

PDF Copy - Simple Characterization Circuit for Rechargeable AA Cells

Resources