
Low inductance dc link film capacitors support switching inverters, converters
Stephen Law
Electronics Power Supply / Management capacitors dc film link powerCORNELL DUBILIER 944L Series of low inductance, high current dc link film capacitors support the needs of high-frequency switching inverters and converters. Product series makes use of large diameter, non-inductive windings with low-inductance internal buss connections, yielding equivalent series inductance (ESL) values ranging from 10 to 15 nano henries. Ripple current ratings of up to 90 amperes at an ambient temperature of 55°C are achieved by using low-loss polypropylene dielectric with metalized electrodes optimized for applications in fast-switching power inverters. Devices are available in values ranging from 33 to 220µF, with voltage ratings of 800, 1000, 1200, and 1400Vdc.
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