Showing posts with label watt. Show all posts
Showing posts with label watt. Show all posts

Tuesday, November 18, 2014

1000 Watt Power Amplifier

Power amplifier has up to 1000 Watt power, this circuit made one channel only so if you want to create a stereo in it must be made one again, actually this is more suitable power amplifier in use for Sound System or outdoor, so if only in use for the house I think is less suitable.
Maybe youve seen or even have an active speaker and there is written 1500 watts PMPO (Peak Music Power Output), make no mistake this is different from Power Amplifier Active Speaker, I often dismantle such Active Speaker in it only a power with power no more than 150 watts by using the transformer 2-3 Ampere. PMPO is not a real power which is issued by the Power Amplifier, but counting all the speakers that there is, for example: if there are 5 pieces of speakers on each channel and each speaker has a power of 10 W then it is 100 W PMPO.
1000W Power Amplifier schematics
Part List 1000W amplifier
While this 1000 Watt Power Amplifier minimal use transformer 20 Ampere. And the output of Power Amplifier DC voltage contains approximately 63 volts, with currents and voltages of this magnitude, this 1000 Watt Power Amplifier will not hesitate hesitate to destroy your woofer speakers to connect. To overcome that then before the speaker on connects to 1000 Watt Power Amplifier must be in pairs Speaker Protector.

Actually if you want to create a Power Amplifier with great power does not have to make a Power Amplifier with great power. Example: you want to create a Power Amplifier with 10 000 Watt power. You do not have to assemble a Power Amplifier with power of 10,000 watts, but you assemble the power Power Amplifier Small but many, such as you assemble the Power Amplifier with 1000 Watts of power for as many as 10 pieces, it will produce 10 000 Watt Power Amplifier helpless.

Circuit uses power transistors pair of 5 x 5 x 2SA1216 and 2SC2922 and 2SC1583 use a differential amplifier that actually contains 2 pieces of transistors that are in containers together. Why use such built-in amplifier differental tujuanya so identical / similar, could have uses 2 separate transistors but can result in amplifier so it is not symmetrical.

Tips combining speaker.

To get the speakers with great power combining techniques can be used in parallel series, combining each group of speakers should sepaker they will have the same impedance, the same type (Woofer, Mid Range or tweeter) and the same power. Number of merging these speakers should consists of 4 , 9, 16 ff, see picture
Speaker wiring


Example: The number of speakers have 4 pieces each of its 200 Watt power generated will be a speaker at = 200 x 4 = 800 Watt. If there are 9 speakers 200 W then the result = 9 x 200 W = 1800 Watt.
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Tuesday, November 4, 2014

Regulated 24 Watt Broad Spectrum LED

This project involves constructing an energy efficient broad spectrum LED lamp system. The lamp is useful for indoor reflective room lighting. It has a broad color spectrum that more closely approximates the light of the sun when compared to fluorescent bulbs and white-only LEDs. The light level is regulated and the light that is produced does not flicker.

The six differently colored LED stars, made by LedEngin, Inc., are rated at 5 watts (nominal). The LED array and associated current regulator consume 1 amp at 24VDC (24 Watts). NEVER stare directly at this lamp when it is running at full operating power, it is DANGEROUSLY BRIGHT.

Regulated 24 Watt Broad Spectrum LED Circuit diagram : 

24


With the LEDs shown, the combined color of the lamp has a pinkish white hue. The 5 Watt ratings of the LEDs are not precise, the white, blue and green LEDs consume about 4W and the lower voltage red, orange and deep red LEDs consume about 3W. The current regulator keeps the LED brightness constant and insures that the LED series string never draws more than 1 amp of current.

The project has also been coined "Bold as LED" in reference to the Jimi Hendrix song "Bold as Love" which has the lyric: "My yellow in this case is not so mellow"

Specifications:
  • Nominal operating power: 24 Watts (24V DC at 1 Amp)
  • LED power consumption above regulation point: 18.6 Watts
  • Maximum operating voltage: 28V DC
  • Minimum voltage for regulated light: 23V DC
  • Leds produce light down to 11V
  • Deep Red LED voltage: 2.55V
  • Red LED voltage: 2.37V
  • Amber LED voltage: 2.60V
  • Green LED voltage: 3.92V
  • Blue LED voltage: 3.56V
  • White LED voltage: 3.7V
  • Voltage across regulator when current becomes regulated: 4.2V

Theory:

The lamp is wired as a current loop which includes the power supply, the LED series string and the 1 amp current regulator circuit. The LM317K and 1.2 ohm 5 Watt resistor act as a current regulator that limits the loop current to 1 Amp. During regulation, there will always be 1.2V across the 1.2 ohm resistor. The current regulator insures that the LEDs always run at their maximum brightness, but not so bright that they burn out. A 100uF electrolytic capacitor bypasses the DC power input to the device and a 100nF monoblock capacitor bypasses the LM317K input.

Construction:

The LEDs and current regulator circuit were mounted on a 3" x 8" chunk of 1/8" aluminum stock. The LM317K regulator and LED heat sinks were bolted to the chassis directly, heat sink grease was used on the regulator, the heat sinks and the six LEDs. Connecting the LM317K directly to the aluminum plate makes the plate electrically hot at 1.2V, the plate should not be allowed to come into contact with any live conductors. By using a few more parts, the LM317 can be mounted with an insulator and plastic shoulder washers for electrical isolation from the mounting plate.

The LEDs come mounted on their own small star-shaped aluminum substrates, these were attached to the aluminum plate using two 7/16" 4-40 screws and nuts per LED. A drop of silicone heat sink grease should be applied to the center of each LED star when it is mounted to the plate for heat conduction. It is important to use insulating plastic washers on the top side of the LED stars to prevent electrical contact with head of the screw. The LED stars were soldered together using short pieces of #20 tinned wire after being mounted on the plate. It is necessary to use a fair amount of heat to solder the contacts, a 200/240W soldering gun did the job. Be very careful not to melt the lenses on the LEDs, the LEDs cost around $10 each. The positive and negative leads of the LED series string were connected back to the current reglator circuitry using #20 wire covered with teflon insulation.

The initial mechanical arrangement did not pass the "rule of thumb" test, which says that if a semiconductor is too hot to hold your thumb on, it will not live a long life. Two large aluminum heat sinks were bolted to the back of the aluminum plate and seem to be sufficient to keep the lamp operating at a reasonable temperature. The LED array produces more heat than the LM317K.

Use:

Connect this circuit to a 24VDC power supply or other power source such as a solar-charged lead acid battery. Be sure to observe the correct polarity. Look away from the LEDs and apply power. Again, do not stare directly at the LEDs, they are bright enough to harm your vision. A switch-mode power supply rated at 24VDC and 1 Amp or more is probably the most energy-efficient way to power this device from line power.

Parts:
  • 1x LM317K T03 case 1.5A adjustable voltage regulator
  • 1x 1.2 ohm 5W resistor (or 2x 2.4 ohm 2W resistors in parallel)
  • 1x 100uF 35V or higher electrolytic capacitor
  • 1x 100nF 35V or higher monolythic capacitor
  • 1x LedEngin LZ1-10R205 deep red 5W LED
  • 1x LedEngin LZ1-10R105 red 5W LED
  • 1x LedEngin LZ1-10A105 amber 5W LED
  • 1x LedEngin LZ1-10G105 green 5W LED
  • 1x LedEngin LZ1-10B105 blue 5W LED
  • 1x LedEngin LZ1-10CW05 cool white 5W LED
  • Miscellaneous wire, solder lugs, termination strips and hardware,
  • Large aluminum mounting plate, heat sinks if necessary.

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Tuesday, October 28, 2014

Alpine Audio Amplifier 500 Watt RMS

Alpine
Alpine
Alpines Amplifier to chain is a good series of normal-grade amplifiers. They arent lofty terminate, but they value is isnt "high end" either. They are efficient and control well with vehicles with the purpose of dont exactly say a bundle of further amps free in support of powering amplifiers. I run an MRP-M500 and an MRP-F300 arrived my Honda Fit and they both supply me with capable, clean power not including taxing my cars electrical usage.

In my system, the M500 is powering a 12" subwoofer in a insignificant, sealed box. with the purpose ofs not exactly a formula meant for greatest extent deep shock, but the M500 does a major occupation pushing my subwoofer to its fullest budding. The classify-D circuitry makes the amp very efficient so with the purpose of it bidding effort well clothed in nearly all vehicles electrical systems.

The lone downside Ive found is to the EQ functions are relatively inadequate. You comprehend controls designed for hub frequency, crossover advantage, and low boost. It makes it a minute other intricate to get a smooth sound flanked by this amp and your four-channel amp. It presently takes longer than if in attendance were supplementary EQ controls. too, the low boost puts a definite crest voguish its frequency output so so as to the amplitude drops sour higher than and underneath the inside frequency. That earnings that if you like to step the greatest power output, your range is open to come to pass somewhat inadequate.

Overall, Im very glad with the M500. seeing that extended as youon the subject of not looking to power a massive, inefficient subwoofer, it be supposed to donate you a very smooth, musical sound.

MRP-M500 - Alpine Monoblock 500 Watt RMS Power Amplifier  :

Product Features

  • Mono subwoofer car amplifier
  • 300 watts RMS x 1 at 4 ohms (500 watts RMS x 1 at 2 ohms)
  • Class D amp with MOSFET power supply
  • 10-11/16"W x 2-7/16"H x 9-9/16"D

Technical Details

  • Brand Name: Alpine
  • Model: MRP-M500
  • Faceplate Type: Detachable
  • Device Type: Amplifier
  • MP3 player: N
  • Warranty: 1 year warranty

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Sunday, October 26, 2014

3 Watt stereo amplifier circuit

3 Watt stereo amplifier circuitusing MAX 7910 IC. The MAX9710 a stereo audio power amplifier IC capable of delivering 3Watts of out put to 4 Ohm loads. MAX9710 can be operated from a single 4.5V to 5.5V power supply , makes it ideal for hand held applications.The IC for 3 Watt stereo amplifier circuit also features thermal overload protection.


Circuit Schematics 3 Watt  Stereo Amplifier MAX 7910 
3 Watt stereo amplifier circuit 

This  3 Watt stereo amplifier circuit  is suitable for small power audio devices such as radio sets and portable CD players. 5 V DC power supply is used for powering the  3 Watt stereo amplifier circuit. 6V battery with an IN 4007 diode series to the positive terminal of it can also be used instead of 5 V DC supply. The  3 Watt stereo amplifier circuit will get a supply voltage approximately 5 V after 0.7 V voltage drop across diode.

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Tuesday, September 23, 2014

Mosfet Power Inverter 1000 Watt

Mosfet Power Inverter 1000 Watt

This power inverter circuit will provide a very stable “Square Wave” Output Voltage. Frequency of operation is determined by a pot and is normally set to 60 Hz. Various “off the shelf” transformers can be used. Or Custom wind your own for best results.

Additional MosFets can be paralleled for higher power. It is recommended to Have a “Fuse” in the Power Line and to always have a “Load connected”, while power is being applied. The Fuse should be rated at 32 volts and should be aproximately 10 Amps per 100 watts of output. The Power leads must be heavy enough wire to handle this High Current Draw! appropriate Heat Sinks Should be used on the RFP50N06 Fets. These Fets are rated at 50 Amps and 60 Volts. Other types of Mosfets can be substituted if you wish.

There ARE Limitations! I have had numerous requests for an Inverter for 1000 watts and Even MORE. Sorry I Don’t feel this is Practical. At 1000 Watts and operating from a 12 Volt Source, the Input Current will be close to 100 AMPS. That would Require a HUGH Size of a Primary Wire.

1000 Watt Mosfet Power Inverter 

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100 Watt Power Amplifier Circuit With IC TDA7294

Power Amplifier TDA7294 is a power amplifier with IC Power Amplifier is a mono 100W Class AB operation of OCL.

The power supply circuit. Positive, negative, and ground. Usually, we use the power supply circuit to + /-25V to + /-35V at 100W RMS will be used to heat sufficiently.

After many members have already made the TDA7294 as I know, with a sound quality that is the very gods or Hi-End itself.



Several days before the member’s PM to me saying that I had an amplifier using IC TDA7294 to have more of the same. Higher power. And low heat.

Achieved by increasing the voltage raising circuit For the more, it means high power and high heat up. Today I have come across. I use IC TDA7294 circuit at the time.

In-Home Use amplifier circuit is a Class G amplifier with low power consumption, resulting in the loss of a 20V DC power less.

And when you’re driving a high-power random access is party to a rhythm. Principles to do it. I took out a membership you can do is try to build up a bit.

We provides PCB both top and bottom side for you.
 
Sourced By : Circuitsstream
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Saturday, September 20, 2014

Simple 40 Watt Inverter

This is the schematic of a simple 40W , 12 volts to 220 Volts inverter.You don’t believe, this is simple and cheap and working for me for last 4 years.The heart of the schema is a CD 4047 IC which is wired as an astable multi vibrator here.Resistance and Capacitance at pin 1&2 determines the out put frequency.

Circuit diagram :

simple-40-watt-inverter

Simple 40 Watt Inverter Circuit Diagram

Here it is set to 60Hz.Due to this a two 180 degree out of phase ,120 Hz , 50% duty cycle waveforms will appear at pin 10 & 11.These waves are amplified by the complementary symmetry amplifier made of transistors BC 337 & TIP 3055 to drive the out put transformer.Don’t get feared of the technical terms, just wire it on a all purpose PCB.It is simple and will work.Don’t worry about the transformer windings ,buy a 220-110-0 primary,12-0-12 secondary , <50w transformer.you can select output voltage of 110v or 220v by a two way switch using such a transformer.

Don’t worry if you don’t have such a transformer, a simple 220 to 12-0-12 will also do the trick sacrificing the 110V option or vice versa.The best way to get a transformer is to break all useless electronic devices in your trash.Most probably you will find the transformer or more components needed here!

Tips :

First wire to oscillator part only.Then check out put Pin 10 &11 of CD4047 to obtain the required wave forms ( two 120Hz ,180 degree out of phase,50% duty cycle waves.

Then connect transistors ,transformer and load (25 W bulb for test).

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