150 Watt Amplifier Circuit

Low Cost 150 Watt Amplifier Circuit

Description

This is the cheapest 150 Watt amplifier circuit you can get,I think.Based on two Darlington power transistors TIP 142 and TIP 147 ,this circuit can deliver a blasting 150 W Rms to a 4 Ohm speaker.Enough for you to get rocked?,then try out this.

TIP 147 and 142 are complementary Darlington pair transistors which can handle 5 A current and 100V ,famous for their ruggedness. Here two BC 558 transistorsQ5 and Q6 are wired as pre amplifier and TIP 142 ,TIP 147 together with TIP42 (Q1,Q2,Q3) for driving the speaker.This circuit is designed so rugged that this can be assembled even on a perf board or even by pin to pin soldering.The circuit can be powered from a +/-45V 5A dual power supply.You must try this circuit.Its working great.

The preamplifier section of this circuit is based around Q4 and Q5 which forms a differential amplifier. The use of a differential amplifier in the input stage reduces noise and also provides a means for applying negative feedback. Thus overall performance of the amplifier is improved. Input signal is applied to the base of Q5 through the DC decoupling capacitor C2. Feedback voltage is applied to the base of Q4 from the junction of 0.33 ohm resistors through the 22K resistor. A complementary Class AB push-pull stage is built around the transistors Q1 and Q2 for driving the loud speaker. Diodes D1 and D2 biases the complementary pair and ensures Class AB operation. Transistor Q3 drives the push-pull pair and its base is directly coupled to the collector of Q5.

Circuit Diagram & Parts List .

150 watt amplifier circuit diagram

Notes.

• Remember TIP 142 and 147 are Darlington pairs .They are shown as conventional transistors in figure for ease.So don’t get confused.Even though each of them have 2 transistors ,2 resistors and 1 diode inside ,only three pins ,base emitter and collector are coming out.Rest are connected internally.So its quite OK to assume each of them as transistor for ease.
• Use a well regulated and filtered power supply.
• Connect a 10K POT in series with the input as volume control if you need.Not shown in circuit diagram.

Power supply for this circuit.

A +40/-40 unregulated dual supply for powering this amplifier project is shown below. This power supply is only enough for powering one channel and for stereo applications double the current ratings of the transformer, diodes and fuses.

Power supply for this project

Internal diagram and pin out.

TIP 142-TIP 147 Pin Out Diagram with Schematics

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Project in ECE1 - BSCoE - 3

You can download this image by clicking this link http://www.mediafire.com/?66j1614l4742akd

Tested na yan,,kayo na bahala sa pagbuo. Size of board cgro 4X5 inches. 

Para mas maintindihan nyo yung diagram. I-download nyo itong document.

Block Diagram Components  -  http://www.mediafire.com/?ylpl0cf2o2h2cl6

Yung price at bilang ng components kasama na rin dyan..

Yung output naman ng gagawin nyong circuit eto yung link http://www.mediafire.com/?bw6irdwl7uwd7ao

7 Logic Gates Truth Table

Download nyo na lang..

All documents are password protected.

Password to Open: BSCoE (Case Sensitive po yan) then read only.

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Logic Gates and Their Truth Table

Download the pdf or doc file for the truth table of the following logic gates.
AND
NAND
OR
NOR
X-OR
X-NOR
NOT

Links: http://www.mediafire.com/?c25ul4j9edk85wp  (PDF file)
          http://www.mediafire.com/?alflsfwnmkmaqb0   (DOC file)

Password to Open: BSCoE  (Case Sensitive) Read more

Logic Gates Using Diode, Resistor, & Transistor

Basic Logic Gates
http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/diodgate.html#c4 Read more

New in 2012 and in the future!

The Year 2012

• Completion of the International Space Station – The largest man made structure to ever enter orbit.  Weight is 345,000 kg, and it will be approximately 110 meters wide.
• The Mars Science Laboratory Lands on Mars – This will be the first time a video camera is brought to another planet, as well as the first 3D camera.
• Windows 8 is Released
• Google+ Passes Twitter in Member Accounts – With an estimated 290 million Users Google+ ranks 2nd only to Facebook for social networks, in terms of user totals.

The Year 2013

• Gaia Mission Launched – Will map out over 1 billion stars in a 5 year period from 2013-2018.
• 4G Becomes Standard -  The wireless standard will be used for all smartphones and wireless devices.  Offers bandwidth of 100 mbps for mobile devices and 1 gbps for stationary reception
• Products Using Memristor Technology Are Available – Computer memory will work on the atomic level instead of the conventional on/off switch level.
• 14 Nanometer Chip are Mass Produced – Currently chip sizes are mass-produced at around 24 nms.

The Year 2014

• Internet Will Outreach Televisions in the US – As internet and TV converge on each other, there will be more internet users than Traditional television viewers.
• Robotic Mules Work for the Military – These robotic mules will be able to traverse terrain that normal vehicles could not, allowing soldiers to carry equipment to remote areas
• Playstation 4 Launched by Sony – Will compete with the Xbox 720, and Onlive for video game dominance.
• Hadron Collider Reaches Max Operating Power – Currently it’s operating at 50% power until 2014.

The Year 2015

• Masdar City Completes First Phase – The city being constructed in the United Arab Emirates will be the first zero-waste, zero-carbon city.  Cost $22 billion.
• Scientists Resurrect the Woolly Mammoth – Extinct for 5,000 years, new technologies will allow cloning of the DNA of the Wooly Mammoth.
• Lunar Tourism Emerges – A company called Space Adventures will sell the first tickets to the moon, or at least within 100 miles from the moon.  Cost: $150 million per person
• The New Horizons Pluto Probe Arrives on Pluto – Will transmit pictures back from the icy planet, 4 billion km away.
• Google+ Eclipses Facebook in Total Users – With nearly 1.2 billion users, if current trends continue, Google+ eclipses the total member base of Facebook, making it the Worlds largest social network.

The Year 2016

• The Worlds First Space Hotel – A Russian space group called Energiya launches the world’s first space hotel, in a partnership with US firm, Orbital Technologies.
• Holographic Versatile Discs or HVDS Replace Blu-Rays – It’s possible that solid state memory may make this technology useless, even though each disk will hold as much data as 200 DVDs.

The Year 2017

• Teleportation of Molecules Made Possible – Scientists already are able to teleport single atoms and light.  Next up are simple molecules.

The Year 2018

• Scientists are Able to Drill Into The Earths Mantle – What many people thought of as science fiction years ago, will be made possible due to technological advances.  Little is known about the mantle.
• Computers Break the Exaflop Barrier - That’s 1,000,000,000,000,000,000 calculations per second.
• Everyday Appliances, Cars, and other Items Connected to Internet – via RFID chips the size of a grain of sand, all your appliances and everyday items will be able to communicate with the internet.
• Devices With 100Gbit/s Transfer Rates Emerge – Light Peak technology will take over USB 3.0, and provide upwards of 100gbit/s transfer rates.
• Spinal Cord Injuries No Longer a Problem – Through stem cell research, any acute spinal cord injury will be able to be treated and cured.  The method is already done in mice.
• The ITER Fusion Reactor Switched On – At a cost of $20 billion the International Thermonuclear Experimental Reactor has been in the works for quite a while.  Success of this project would mean an almost infinite amount of clean power for the world.

The Year 2020

• 5 Billion Internet Users World Wide – Over 5 billion people will have access to the internet.
• Brain Machine Interface Technology Makes Texting Easy - You will be able to text message simply by thinking.  Other Brain Tech interface technologies will also take off.
• Holographic Television Becomes Mainstream – Scientists have already found ways to make this technology possible.  The only problems have been the long refresh rates.
• Traditional Microchips Reach Their Smallest Size Possible – Traditional microchips will give way to new technologies as they reach nearly the size of an atom, 4nm.  In order for Moore’s Law to continue, new technologies will need to come about.
• Stem Cell Organ Manufacturing – No longer will there be a need for organ donations.  Through the use of stem cells, scientists will be able to grow your own organs for you.

The Years 2022 -2025

• Nanotech Clothing and Carpet is Mainstream – Self cleaning carpets, as well as completely waterproof clothing is made possible by nano technology
• Deafness is Curable and Teeth Can be Regenerated – Stem cells will be able to regenerate teeth, as well as cure those who can not hear.
• SD Cards With 1 Petabyte of Data – Forget those 64 GB cards, even the thought of 1 TB cards.  1 Petabyte CD cards are now available.
• Medical Nanobots Emerge – tiny robotic particles will be able to possible cure diseases like cancer.
• Vertical Farming Becomes Mainstream – Skyscrapers filled with vegetation will be the norm, helping alleviate world food shortages.
• Human Brain Simulating Computers Emerge – Because of the exponential growth of computer power, we now have computers capable to simulating a human brain.  The First step towards Cyborgs.
• Immortality Coming Close to Reality – The worlds first 10-year-old mouse is created, and as technology progresses we may be able to extend the average human life by an additional year or more for each year of additional research.

The Years 2026-2030

• Wireless Electricity is Mainstream  -All electronics will have an antenna and get their power from a single electrical node in the center of one’s home.
• Limb Regrowth Possible – Scientists will find a way to By switch off a particular gene called P21, meaning that adult mammalian cells can be induced to behave like regenerative embryonic stem cells.
• Human Like AI Is a Reality – Artificial intelligence that mimics that of man is now available.  The next phase is singularity where super intelligence emerges in the coming years.

The Years 2031-2040

• TeraBit Internet Speeds Emerge – Think 100 mbits/s is fast?
• Weather Forecasts become 99.9% accurate – Hurricane prediction as well as every day weather will be nearly perfected with the Zetaflops of computer power now available.
• Exabyte Storage is Now Available -  This may seem like too much storage to even be needed, but AI, and other new technologies will need this space.
• First Man on Mars – Finally a Man will step foot on the red planet.
• Internet 4.0 Emerges – Many, many devices, and every day tools and appliances will make the Internet a much more complex environment.
• Quantum Computing Is Available – These computers will revolutionize future technology
• Alzheimer’s Disease is Now Curable – After reverse engineering the human brain, scientists are now able to cure Alzheimer’s.
• Teleportation of DNA Made Possible – Advances in the field will allow complex Molecules of DNA to be teleported over a distance.

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