Ericsson has introduced the third version of its high-power-density quarter-brick power module based on the company’s innovative Hybrid Regulated Ratio (HRR) topology. The PKM4613NH is designed to power applications that require stable voltage and offers available power up to 600W across a wide input voltage range of 36V to 75V and an operating temperature range of –30°C to +90°C. Combining voltage and duty-cycle regulation, the HRR technology makes it possible to operate high-power conversion across a wide input voltage range, while keeping power losses low, resulting in an efficiency power conversion of up to 96%.
"Since the introduction of Ericsson’s first HRR-topology-based high-power-density quarter-brick converter, the market demand for high-power modules in the telecom segment has grown exponentially," said Patrick Le Fèvre, Marketing and Communication Director, Ericsson Power Modules. "This reflects the increasing number of applications that require more power from a smaller footprint. In fact, in many applications, the PKM4613NH makes it possible to employ only one quarter-brick module rather than having to use two placed in parallel, thereby saving board space for additional computing power."
In addition to providing 43% more available power than previous generations of intermediate bus converters, the HRR technology guarantees tightly regulated output voltage over the overall operational range, meaning that the voltage remains stable and safe for the target load in the case of line disturbance.