STMicroelectronics introduces STNRGPF01 switching power supply (SMPS) controller that provides the flexibility of digital power and energy-efficient technology. There is no need to tackle with the time consumption on technical challenges for developing custom DSP (digital signal processor) code.
In high power applications above 1kW or 2kW there is a need of a staggered CCMPFC (Continuous Current Mode Power Factor Correction) topology. This technology must be used to handle such level of power while ensuring proper magnet power wastage. In addition, this technology will provide higher energy efficiency, efficient communications and configuration options. So these are the main parameters that designers tend to use expensive and complex digital signal processing solutions.
Communication Protocols
In STMicroelectronics uses eDesignSuite online design environment. So STMicroelectronics provides new interleaved boost PFC in SMPS controller configuration provides quick, simple, built-in I2C and UART interface for easy monitoring.
The controller supports three interleaved phases, which ensures low ripple current, simplifies EMI filter design with small inductors. And its powers ranges from 500W to 20kW. In addition, STNRGPF01 performs a flexible , configurable phase reduction strategy that automatically optimizes the number of working phases and maintains energy efficiency under all load conditions .
STNRGPF01 Controller Modes
STNRGPF01 working mode is CCM that is a fixed frequency and current sharing control. The hardware internal current loop ensures accurate cycle-by-cycle adjustment. While the digital proportional-integral (PI) controller is for managing external voltage circuits to ensure fast dynamic response. The switching frequency is set in the range up to 300kHz to control the output stage of the IGBT or MOSFET. Other configurable features include inrush current limiting and PFC soft power up.
Applications
The STNRGPF01 is an easily configurable in the eDesignSuite environment to provide the benefits of digital power technology with excellent flexibility, reliability, safety and energy efficiency. For example, industrial welding machines, motor drives, pumps, uninterruptible power supplies (UPS ), Industrial or consumer electronic air conditioners. As well as home appliances such as refrigerators, washing machines, dryers and kitchenware.
Easy Schematic Design
STMicroelectronics design methods overcomes the traditional design constraints. So that designers can focus on the development of the final application. In the eDesignSuite environment. Once you enters the converter specifications then you can run the configurator. So here you can automatically generate schematics, bill of materials (BOMM), downloadable firmware, and then configure the chip.
Designers can get the flexibility with this new controller. Sp that one needs not to understand the processor, memory, and interrupt mechanisms. So making it without the need to develop the code needed to implement the functionality on the digital signal processor.