Tuesday 8 May 2012

64-Bit Quad-Core Processor


Freescale Semiconductor introduces two 64-bit, multicore QorIQ™ P5 family control plane processors delivering 2.4 GHz of single threaded performance per core. The new quad-core QorIQ P5040 and dual-core P5021 products feature a robust mix of accelerators, high-speed interfaces and security features, resulting in advanced embedded solutions ideally suited for power-conscious control plane applications.

The new products complement Freescale’s previously announced QorIQ P5020 and P5010 devices based on 2 GHz cores, and round out one of the industry’s most comprehensive portfolios of embedded control plane processors. With the new products, Freescale will soon offer a range of single-, dual- and quad-core 64-bit devices for a broad array of applications, from single-core solutions for products requiring a sub-15W profile, to quad-core processors for compute-intensive applications.

Built on Freescale’s 64-bit Power Architecture e5500 core, all four QorIQ P5 family products are pin- and software- compatible. Software reuse is further enhanced with hybrid 32-bit mode capabilities, which support legacy software and help ensure a seamless transition to 64-bit computing.

“Freescale continues to expand its broad range of highly successful QorIQ multicore processors with the new P5040 and P5021 devices,” said Bernd Lienhard, vice president and general manager of Freescale’s Networking Processor Division. “These products are engineered to help our customers maintain best-in-class power efficiency while handling the tremendous control plane processing demands associated with the rapid global growth of wired and wireless data.”

Both products provide optimal performance per watt and are designed for industrial, storage, military/aerospace and networking applications including core routers and data centers. They feature advanced security capabilities including secure boot of application code, tamper detect circuitry and secure debug, as well as hardware-assisted acceleration of cryptography protocols. Key to establishing highly secure systems, Freescale’s embedded trust architecture prevents cloning and unauthorized cores from running on a system.

Integration of application-specific accelerators and advanced I/O on a single embedded device means customers of both new products benefit from reduced system development cycles and thermal management costs. Processing efficiency is optimized in part via CoreNet on-chip fabric that is designed to feed accelerators and cores while eliminating bus contention. A RAID 5/6 engine offloads the processors’ cores from parity calculations for storage applications. The devices integrate high-speed connectivity support for PCIe, SGMII, XAUI, SATA, Aurora and multiple 1GigE and 10GigE. Double precision floating point support is included to address key industrial market requirements.
Comprehensive Ecosystem

Freescale maintains a broad ecosystem of internal and third-party software to simplify product development and speed time to market. 32-bit and 64-bit software solutions are planned from Freescale and third party ecosystem partners.
Availability

Freescale plans to offer initial samples and a P5040 development board in June 2012, with full qualification for both products expected in the first quarter of 2013. For more information please visit http://www.freescale.com/QorIQ.

Source: Freescale Semiconductors Press Release

Saturday 5 May 2012

Low Cost 100W Inverter

Here is a 100 Watt inverter circuit using minimum number of components.I think it is quite difficult to make a decent one like this with further less components.Here we use CD 4047 IC from Texas Instruments for generating the 100 Hz  pulses  and four 2N3055 transistors for driving the load.
The IC1 Cd4047 wired as an astable multivibrator produces two 180 degree out of phase 100 Hz pulse trains.These pulse trains are  preamplifed by the two TIP122 transistors.The out puts of the TIP 122 transistors are amplified by four 2N 3055 transistors (two transistors for each half cycle) to drive the inverter transformer.The 220V AC will be available at the secondary of the transformer.Nothing complex just the elementary inverter principle and the circuit works great for small loads like a few bulbs or fans.If you need just a low cost inverter in the region of 100 W,then this is the best.


Notes.
  • A 12 V car battery can be used as the 12V source.
  • Use the POT R1 to set the output frequency to50Hz.
  • For the transformer get a 9-0-9 V , 10A step down transformer.But here the 9-0-9 V winding will be the primary and 220V winding will be the secondary.
  • If you could not get a 10A rated transformer , don’t worry a 5A one will be just enough. But the allowed out put power will be reduced to 60W.
  • Use a 10 A fuse in series with the battery as shown in circuit.
  • Mount the IC on an IC holder (socket).
  • Remember,this circuit is nothing when compared to advanced PWM inverters.This is a low cost circuit meant for low scale applications.
The maximum allowed output power of an inverter depends on two factors.The maximum current rating of the transformer primary and the current rating of the driving transistors.
For example ,to get a 100 Watt output using 12 V car battery the primary current will be ~8A ,(100/12) because P=VxI.So the primary of transformer must be rated above 8A.
Also here ,each final driver transistors must be rated above 4A. Here two will be conducting parallel in each half cycle, so I=8/2 = 4A .
These are only rough calculations and enough for this circuit.

Source: circuitstoday.com

See also about inverter
1. How to make a simple inverter
2. Inverter 100W with IC 4047

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