Emerson Network Power IBC32 and IBC60: Quarter-brick and eighth-brick IBCs feature a driven-synchronous system
Operating from a 38 to 55V-dc power supply, the quarter-brick IBC60 and the eighth-brick IBC32 IBCs (intermediate-bus converters) suit multiple downstream, nonisolated POL (point-of-load) converters in distributed-power systems with 9.6V intermediate-bus architectures. The 300W, eighth-brick and 642W, quarter-brick devices have fixed 5-to-1 conversion ratio and generate an isolated, unregulated dc output. A 48V-dc power supply allows the converters to generate a 9.6V-dc output. The IBC60 delivers 60A, providing a 400W/in.3 power density, and a 2.5% typical load-regulation figure for all load conditions; the IBC32 provides a 32A output capacity and a 2.3% typical load-regulation figure. A synchronous-driven system allows the PWM controller to control all of the power switches, providing tighter timing control of the secondary-side switches than that of a self-driven synchronous rectifier. The eighth-brick IBC32 costs $45, and the quarter-brick IBC60 costs $60.
Emerson Network Power, www.emersonnetworkpower.com
