IR and MEE Intro Hybrid Electronic Power Conditioner
International Rectifier Corp. (IR, El Segundo, CA) and Mitsubishi Electric Engineering Company Ltd. (MEE, Japan) introduced the industry's first 90 percent efficient, all-hybrid, space-level, electronic power conditioner (EPC), which converts a satellite's primary bus voltage into well-regulated, secondary output rails for the host solid-state power amplifier (SSPA) used in satellite communication systems.
The new EPC platform is a full-bridge topology converter with secondary synchronous rectifiers operating at 200kHz. The input-voltage range is from 26V to 43V, with other ranges available. Typical output power is 56W. The main output voltage can be externally set between +6V to +8V at 8.5A, with secondary output voltages of +5V at 0.4A and -5V at 0.4A. The design configuration can be easily modified for increased output power. Custom output voltages for unique requirements are possible.
The new platform has built-in over-current protection and under-voltage lockout circuits, as well as an EMI filter to enhance performance. All elements used within the EPC platform hybrid are Class K rated. Performance is specified over an operating temperature range of -40 to +80 degrees C. The new devices are available unscreened and screened to Class K per MIL-PRF-38534.
