© luchschen dreamstime.com Components | September 23, 2013
Renesas adds robust control algorithm to RX63T microcontroller
Renesas Electronics announced the addition of two new functions on its 41 products with pin counts of 100 pins to 144pins in the RX63T Group of microcontrollers (MCUs), which derives from the company’s successful RX600 series of high-speed, high-performance midrange MCUs.
The newly added functions are a PWM (pulse-width modulation) delay generation function and a digital power management control function, which provide an easy implementation of digital power management control solutions, which became a focus key technology for implementing an energy-efficient “smart society.” The PWM delay generation function enables high-resolution adjustment of PWM output in increments as small as 312.5 picoseconds (one-trillionth of a second), allowing more precise and optimized power control. The digital power management control function entails the integration of a digital power management controller (DPC) in hardware. It provides a robust control algorithm that automatically compensates for inconsistency in the characteristics of the elements within the power supply unit. This results in enormous savings, since the system design engineering can reduce the man-hours work required for manual tuning of the power supply. The new functions are both driven by high-speed hardware, which allows the use of higher switching frequencies and contributes to more compact power supply dimensions. Due to the global warming and energy shortages, demands for more eco-friendly lifestyle are rising. There is emphasis on adding energy-saving functions to electric household appliances and consumer products such as air conditioners and refrigerators. At the same time, there is demand for low-power design in embedded devices used in industrial equipment. As a way to reduce power consumption, digital control is increasingly being adopted as an alternative to conventional analog power supply configurations. As a result, increasing importance is being placed on more precise power management control to boost efficiency, achieve greater compactness, and improve design efficiency. Although MCUs have been used to implement digital power management control, the number of MCU models capable to perform the high-resolution PWM control required for this purpose was limited. In addition, precise tuning is required to match the load characteristics of the device subject to power management control. A special tuning process was required to compensate for inconsistency in the characteristics (deviation from the design values) of the elements within the power supply unit. Also, digital power management control requires complex calculations for feedback control. Since the processing needs to be done in software, higher performance controller would be demanded. Renesas provides with the RX63T MCU, the latest evolution of the wide scalable RX 32-bit family, such high resolution PWM timer, 100MHz CPU performance and all tuning mechanism to design a highly efficient single chip solution. Key Features of the new PWM delay generation function and DPC function on the RX63T Group of MCUs:
- High-resolution 312.5-picosecond PWM output function: PWM output precision (resolution) is essential for power management control, and the new PWM output function achieves a maximum resolution of 312.5 picoseconds (100 MHz operation). This high-resolution PWM output function, when combined with the excellent CPU performance of Renesas’ RX core, enables a higher level of precision for inverter and converter control. This enables highly efficient digital power management in applications such as server power supplies and general-purpose power supply systems.
- Robust control algorithm to compensate for inconsistency in the characteristics of the elements on the user board: Implementing the control algorithm required by the digital power supply in hardware enables achieving greater compactness and on the other hand to use the faster switching frequencies needed for higher precision (maximum: 1.85 MHz). The robust control algorithm automatically compensates for inconsistency in the characteristics of the individual elements in the customer’s system, realizing a high level of stability. This eliminates the need for system designers to perform tuning after mounting the power supply ICs. This results in dramatic reduction of man-hours. The above functions are implemented in hardware, so the powerful processing capabilities of the 32bit RX core can be applied to the main processing routine (motor/inverter control, etc.) while DC/DC power management control takes place simultaneously.
Avery Dennison invests in new factory in Brazil Avery Dennison is gearing up for future growth of RFID technology. Just months after signing a deal to acquire Smartrac's transponder division, the company announces the location of its next RFID manufacturing facility, its first in Brazil and fifth in the world.
ST and TSMC team up on Gallium Nitride-based products STMicroelectronics and TSMC are collaborating to accelerate the development of Gallium Nitride (GaN) process technology and the supply of both discrete and integrated GaN devices to market.
WD to sell ActiveScale business to Quantum Western Digital Technologies, Inc. has entered into a definitive agreement to sell its ActiveScale business to Quantum Corp., under which Western Digital's full line of ActiveScale products will be sold.
Maxim accelerates in Europe with $25M investment in Ireland Maxim Integrated Products, Inc. is opening a new design centre in Dublin, Ireland. The design centre will focus on product development and conducting R&D in the areas of analog semiconductor design.
Workers to stay home as SK Hynix trainee had contact with virus patient 800 workers of the South Korean chipmaker has quarantined themselves – as a preventive measure – in order to keep the spread of the Coronavirus at bay.
Dialog Semiconductor to acquire Adesto Technologies Dialog Semiconductor has signed a definitive agreement to acquire all outstanding shares of Adesto Technologies Corporation.
Renesas and Panthronics team up on wireless charging and IoT solutions Renesas and Panthronics AG, a fabless semiconductor company specialising in high performance wireless products, are collaborating to bring solutions to the consumer, industrial, and Internet of Things (IoT) markets.
Murata completes new production facility in Malaysia Murata Electronics (Malaysia) Sdn.Bhd. (Perak, Malaysia), a production subsidiary of Murata Manufacturing Co., Ltd., recently completed construction of a production facility that was started in October 2018.
AKKA is now a majority owner of Data Respons Following the closing of the voluntary offer period, AKKA holds 72.89% of Data Respons’ share capital.
Sequans and Avnet sign global distribution deal Sequans Communications S.A. and Avnet have entered into a distribution agreement whereby Avnet will promote and sell Sequans’ IoT chips and modules and will exclusively promote and sell Monarch Go, an LTE-M/NB-IoT modem component designed for and certified by Verizon.
Synopsys completes acquisition of certain IP assets from INVECAS Synopsys, Inc. has completed its acquisition of certain IP assets from INVECAS. This acquisition broadens Synopsys' DesignWare Logic Library, Embedded Memory, General Purpose I/O, Analog, and Interface IP portfolio.
Qualcomm: Coronavirus may impact phone industry Chip maker Qualcomm Inc has issued a statement that the coronavirus outbreak in China poses a potential threat to the mobile phone industry.
South Korean supplier to set up manufacturing in Hungary Soulbrain, a South Korean materials company supplying chemicals used in semiconductors, displays and battery cells, is establishing its first European unit in Tatabánya in Hungary.
Seven major chip acquisitions valued at USD 1bn or more Semiconductor merger and acquisition activity strengthened in 2019 after pulling back in the two previous years from historic high levels of M&A agreements in 2015 and 2016.
Jenoptik is expecting further growth in 2020 Despite difficult economic conditions, Jenoptik continued to grow in 2019.
ams reports record results for full year 2019 Austrian sensor manufacturer ams reports that its revenues for 2019 was up 32% year-on-year, and fourth quarter revenues exceeded expectations with strong adjusted operating profitability.
Xperi enters into a patent and technology license deal with SK hynix Xperi Corporation has entered into a new patent and technology license agreement with semiconductor manufacturer SK hynix.
Communications equipment makers want high power outputs and small solution footprints Many communications systems are powered via a 48 V backplane. This voltage is normally stepped down to a lower intermediate bus voltage, typically to either 12 V, 5 V, or even lower, in order to power the racks of boards within the system.
Pennsylvania’s AMETEK acquires IntelliPower AMETEK Inc. has purchased IntelliPower, designer and manufacturer of high-reliability external battery packs and power conditioners and distribution units for defense and industrial applications.
Nuvia unveils first NA office, new leadership Santa Clara-based silicon design start-up NUVIA Inc. has opened its first international office in Toronto, Ontario, Canada.
Murata completes new production building in Japan One of Murata’s manufacturing subsidiaries – Fukui Murata Manufacturing Co., Ltd. – has completed the construction of a new production building in Echizen City on the Fukui Prefecture, Japan.
Synapse opens two offshore semiconductor design centres Synapse Design has officially opened its newest semiconductor design centers: One in Ahmedabad, India and one in Penang, Malaysia. With the addition of these two design centers, the company now has eight offshore design centers (ODC).
Amtech receives order from power semiconductor customer in Asia Amtech Systems says that its subsidiary, Bruce Technologies, Inc., has received a significant new order for its full 300mm clustered HTR diffusion furnace from a top-tier global power semiconductor customer in Asia. The furnace is expected to ship in fiscal Q1 2021.Load more news