The votes are in. Business-to-Business publisher WTWH Media, LLC, has announced the winners of the second-year Leadership in Engineering Achievement Program (LEAP) Awards, a design engineering product competition honoring the most exciting new products in a host of technology areas: Additive Manufacturing, Advanced Materials, Analog Electronics, Connectivity, Embedded Computing, Fastener Technology, Hydraulics, Industrial Automation, Mechanical, Motion Control, Pneumatics, Power Electronics, Software, Switches & Sensors, and Test & Measurement.
Earning award honors in the Power Electronics category was Renesas Electronics with its four-switch synchronous buck-boost controller family. Renesas says the new devices encompass the industry’s first true bidirectional controllers – ISL81601 and ISL81401. The ISL81x01 controllers deliver peak current, as well as cycle-by-cycle current limit in both directions while in buck or boost mode. They operate two switches at a time to minimize power loss and achieve higher efficiency.
With four independent control loops for input and output voltages and currents, and input/output ranges of 4.5-60 V/0.8-60 V (ISL81601) and 4.5-40 V/0.8-40 V (ISL81401), the controllers support dc power backup and battery-powered medical, industrial and telecommunication systems, and after-market automotive applications. The ISL81x01 bidirectional peak current sensing capability eliminates complex external circuitry required for charging/discharging a battery to supply power to the loads. The proprietary algorithm features valley current modulation for boost mode and peak current modulation for buck mode, providing smooth mode transitions between buck, boost and buck-boost, while reducing low-frequency ripple at Vout, ensuring minimal disturbances during line/load transients.
The multilayer overcurrent protection and precision control algorithm deliver constant current down to 0.1 V at Vout for reliable operation. The ISL81x01 controllers reduce the complexity of battery charging/discharging architecture design while delivering the reliable operation with smooth mode transitions for the extended battery health and power utilization required by today’s power backup and battery-powered applications.
Congratulations to Renesas Electronics and to all the winners of 2019 Leap Awards.