Automatically Compensated PoL Controller IC Integrates PMBus Compatibility

The MAX15301 is an innovative, PMBus compliant, mixed-signal power management IC with a built-in high-performance digital PWM controller for point-of-load (POL) applications. Based on Maxim’s patented InTune™ technology, it automatically compensates the digital PWM control loop. ...

A New PFC Control Method for Electronic Ballasts

Electronic ballasts for fluorescent lighting deliver high efficiency and long lamp lifetimes. A new and simplified control circuit demonstrates complete control of the ballast, including all necessary PFC and lamp functionality....

SiC “Super” Junction Transistors Deliver High Temp Performance

GeneSiC’s SiC-based 1200 V/220 mΩ Super Junction Transistors (SJTs) feature high temperature (> 300 °C) operation capability, ultra-fast switching transitions (< 15 ns), extremely low losses, and a large short-circuit withstand time of 22 µs. Integrating SiC SJTs with GeneSiC’s freewheeling SiC Schottky rectifiers provides a 64% power loss reduction over best-in-class silicon counterparts. ...

Military’s Demands Drive Innovative Thermal Management Solutions

Existing thermal management techniques are helping military electronics survive in severe environments. To ensure system robustness, thermal management technologies must keep pace with newer heat-producing systems. ...

Diverse Cooling Devices Pace Race To Get The Heat Out Of ICs

The need for heat sinks, heat pipes, temperature sensors, switches, and improved materials continues unabated as ICs shrink in size while providing higher performance, putting even more strain on cooling requirements. ...

Optical Encoders Boost Performance In Miniature Control Systems

A three-channel optical encoder provides unprecedented miniaturization. Control applications can benefit by having A, B and index channels using a single codewheel track for the three — a significant factor in miniaturization. In addition, 1x, 2x and 4x interpolation capability increases counts per revolution without requiring a new, larger codewheel design. ...

eGaN® FET-Silicon Shoot-Out Volume 6: PoE-PSE Converter

Operating at about twice the device switching frequency, an eGaN FET-based, fully-regulated, half-brick PSE converter prototype outperforms comparable state-of-the-art MOSFET-based commercial converters. The eGaN-based converter ‘s output power is 100 W more than the nearest MOSFET-based commercial converter. ...

Low Noise Alternatives to Linear Regulators

Linear regulators have limitations with regard to supplying a quiet voltage rail. Alternatively, some very quiet switch-mode power converters, along with some design considerations, can provide a very quiet output voltage....