New IGBT solution delivers up to 96 percent energy efficiency with high switching frequency
Infineon’s portfolio of RC-D switching power devices – which integrate the company’s market leading TrenchSTOP IGBT technology and a free-wheeling diode in a single die – offer low switching and conduction losses with reduced area requirements for the driver circuitry of permanent magnet motors. The new RC-Drives Fast devices offer higher switching frequencies to achieve greater efficiency with only small effect on inverter losses. This leads to increased energy savings, lower requirements for thermal management and reduced EMI (electromagnetic interference) in a range of applications, such as domestic air conditioner fans, dishwasher motors and other home appliance motor drives operating at 4 to 30 kHz switching frequency.
For consumer drives this series enables high efficient designs of inverters that feature operations above 16 kHz to reduce the audible noise to an absolutely silent level. Additionally, in small motor drives using sensor-less FOC (Field Oriented Control), the higher switching frequency allows an increased sampling rate to achieve more accurate dynamic control (torque and speed) of the BLDC motor.
In comparison testing on a 200 W system demo board, the new RC-DF devices showed switching frequency improvements in the 1-2 percent range, while thermal losses (heat) were reduced by an average of 20 percent compared to boards laid out with RC-Drives devices. The new device family ideally complements the overall portfolio, which is optimized to minimize the conduction losses that have the biggest impact on efficiency in motors operating at lower switching frequencies.
Infineon is introducing two 600 V IGBT RC-Drives Fast devices: The first is a 2.5 A device supporting maximum inverter output power of 100W and the second is a 4 A device supporting up to 200 W output. As with all RC-D family members, they are in DPAK (TO-252) packages with dimensions of 2.30 mm x 6.50 mm x 7.22 mm. Other IGBTs available for this application segment only offer larger D 2PAK (TO-263) or TO-220 packages with dimensions of 9 mm x 10 mm x 4.5 mm.
Engineering samples of the 600 V RC-Drives Fast IGBTs are now available, with volume production scheduled to begin this summer.
Infineon Technologies is presents the new the 600 V RC-Drives Fast IGBTs at the PCIM Europe 2011 in Nuremberg, Germany, in Hall 12 at Booth 404.
More information about Infineon’s RC-Drives Fast at
www.infineon.com/rcdf.
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