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Wednesday, July 31, 2013

Bazooka Subwoofer Wiring Diagram

Subwoofer Wiring on Subwoofer Wiring Diagrams Hip Hop Universe

Subwoofer Wiring Diagrams Hip Hop Universe.

Subwoofer Wiring on Subwoofer Speaker Wiring Diagram Subwoofer Review

Subwoofer Speaker Wiring Diagram Subwoofer Review.

Subwoofer Wiring on Subwoofer Wiring Diagrams Four 4 Ohm Dual Voice Coil Dvc Speakers

Subwoofer Wiring Diagrams Four 4 Ohm Dual Voice Coil Dvc Speakers.

Subwoofer Wiring on Subwoofer Wiring Diagrams One 2 Ohm Dual Voice Coil Dvc Speaker

Subwoofer Wiring on Subwoofer Wiring Diagrams One 2 Ohm Dual Voice Coil Dvc Speaker

Subwoofer Wiring Diagrams One 2 Ohm Dual Voice Coil Dvc Speaker.

Subwoofer Wiring on Discuss Ep4000 Maelstrom X Ii In The Diy Subwoofers Forum

Discuss Ep4000 Maelstrom X Ii In The Diy Subwoofers Forum.

Subwoofer Wiring on 300w Subwoofer Power Amplifier Wiring Diagram Skema Rangkaian

300w Subwoofer Power Amplifier Wiring Diagram Skema Rangkaian.

Subwoofer Wiring on Bazooka Subwoofer Wiring Diagram

Bazooka Subwoofer Wiring Diagram.

Subwoofer Wiring on Car Subwoofer Wiring By Mustafa

Car Subwoofer Wiring By Mustafa.

Subwoofer Wiring on Amp Subwoofer Wiring Haiyan Sihuan Electric Co Ltd China

Amp Subwoofer Wiring Haiyan Sihuan Electric Co Ltd China.

Subwoofer Wiring on Subwoofer Wiring Diagrams Two 4 Ohm Single Voice Coil Svc Speakers

Subwoofer Wiring Diagrams Two 4 Ohm Single Voice Coil Svc Speakers.

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Tuesday, July 30, 2013

Epson PowerLite Home Cinema 8350

PowerLite Home Cinema 8350 >> Home show business Projector

Piercing-definition Home Entertainment by a Remarkable appreciate. - Indulge your craving pro bold, immense-screen entertainment on home with the Epson PowerLite Home Cinema 8350. suitable and reasonable, this 1080p projector enhances your entertainment experience - presenting movies, sports and videogames like you’ve in no way seen them otherwise. A solid lineup of Epson know-how makes it probable. The cast includes Epson’s D7 flake and a superb contrast ratio of up to 50,000:1, in place of high-pitched, distinctive details.

And, persons details shine happy, time or else night, merit to 2000 lumens of color and pasty light output. C²Fine 12-smidgen knowledge, 3LCD, 3-chip technology, an Epson exclusive cinema filter and a state-of-the-skill Fujinon lens to generate a comprehensive spectrum of spectacular, constant-to-life flag. You’ll experience all degree of your favorite shows, sports and games.

And, two HDMI 1.3 ports offer expedient, callous-limit connectivity. With efficient filtration and airflow management systems built in vogue, this projector is besides cool to own and argue. The assess-packed PowerLite native soil Cinema 8350 self-control survive the A-lister in your home, delivering vivid, elevated-definition viewing experiences.

Sour, sparkler-absolve describe - a contrast ratio up to 50,000:1
Brilliant images, anytime, daylight hours or else night - 2000 lumens color and sallow light output
High-definition, 1080p home plays experience - D7 mark delivers 1920 x 1080 resolution

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Monday, July 29, 2013

Toyota 4runner Hilux Surf Wiring Diagram Electrical System Circuit

Alternator Wiring Diagram on Schematic And Wiring Diagram Here Source Autolib Diakom Ru

Schematic And Wiring Diagram Here Source Autolib Diakom Ru.

Alternator Wiring Diagram on Volkswagen Corrado Wiring Diagram And Electrical System Schematics 94

Alternator Wiring Diagram on Volkswagen Corrado Wiring Diagram And Electrical System Schematics 94

Volkswagen Corrado Wiring Diagram And Electrical System Schematics 94.

Alternator Wiring Diagram on Ford Taurus Wiring Diagram And Electrical System Circuit 90

Alternator Wiring Diagram on Ford Taurus Wiring Diagram And Electrical System Circuit 90

Ford Taurus Wiring Diagram And Electrical System Circuit 90.

Alternator Wiring Diagram on Honda Shadow Vt1100 Wiring Diagram And Electrical System

Alternator Wiring Diagram on Honda Shadow Vt1100 Wiring Diagram And Electrical System

Honda Shadow Vt1100 Wiring Diagram And Electrical System.

Alternator Wiring Diagram on Circuit Wiring Diagram For 2007 Nissan 350z Coupe Charging And

Alternator Wiring Diagram on Circuit Wiring Diagram For 2007 Nissan 350z Coupe Charging And

Circuit Wiring Diagram For 2007 Nissan 350z Coupe Charging And.

Alternator Wiring Diagram on Information About Toyota Corolla Wiring Diagram And Harness H Ere

Alternator Wiring Diagram on Information About Toyota Corolla Wiring Diagram And Harness H Ere

Information About Toyota Corolla Wiring Diagram And Harness H Ere.

Alternator Wiring Diagram on Peugeot 106 Wiring Diagram Electrical System Circuit Circuit

Alternator Wiring Diagram on Peugeot 106 Wiring Diagram Electrical System Circuit Circuit

Peugeot 106 Wiring Diagram Electrical System Circuit Circuit.

Alternator Wiring Diagram on Toyota 4runner Hilux Surf Wiring Diagram Electrical System Circuit 06

Toyota 4runner Hilux Surf Wiring Diagram Electrical System Circuit 06.

Alternator Wiring Diagram on 1998 Nissan Maxima Wiring Diagram And Electrical System Circuit

1998 Nissan Maxima Wiring Diagram And Electrical System Circuit.

Alternator Wiring Diagram on Wiring 12v Marine Tachometer Diesel Alternator Instructions How To

Wiring 12v Marine Tachometer Diesel Alternator Instructions How To.

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Friday, July 12, 2013

Long Interval Pulse Generator

A rectangular-wave pulse generator with an extremely long period can be built using only two components: a National Semiconductor LM3710 supervisor IC and a 100-nF capacitor to eliminate noise spikes. This circuit utilises the watchdog and reset timers in the LM3710. The watchdog timer is reset when an edge appears on the WDI input (pin 4). If WDI is continuously held at ground level, there are not any edges and the watchdog times out. After an interval TB, it triggers a reset pulse with a duration TA and is reloaded with its initial value. The cycle then starts all over again. As a result, pulses with a period of TA + TB are present at the RESET output (pin 10).

Circuit diagram:

Long-Interval Pulse Generator Circuit Diagram

As can be seen from the table, periods ranging up to around 30 seconds can be achieved in this manner. The two intervals TA and TB are determined by internal timers in the IC, which is available in various versions with four different ranges for each timer. To obtain the desired period, you must order the appropriate version of the LM3710. The type designation is decoded in the accompanying table.

The reset threshold voltage is irrelevant for this particular application of the LM3710. The versions shown in bold face were available at the time of printing. Current information can be found on the manufacturer’s home page (www.national.com). The numbers in brackets indicate the minimum and maximum values of intervals TA and TB for which the LM3710 is tested. The circuit operates with a supply voltage in the range of 3–5 V.

Source by : Streampowers

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Thursday, July 11, 2013

Build a 35W Bridge Power Amplifier with TDA2030

This is the schematic diagram of 35W bridge power amplifier circuit, delivers 35W power output for 8? speaker. The circuit is similar to this 15W bridge amplifier. It use two pieces of amplifier IC TDA2030 (you may use LM1875 as subtitute/replacement).

Build a 35W Bridge Power Amplifier with TDA2030

Notes:

Use 15V/3A power supply for maximum performance.
Use heatsink to prevent overheating on the IC

Parts List:

R1,3,5,7,9 = 22K?
R2,8 = 680?
R4,6 = 1?
C1 = 4.7uF/16V
C2,7 = 22uF/16V

C3,6 = 220nF
C4,9 = 100nF
C5,8 = 200uF/25V
IC1-2 = TDA2030 / LM1875
Lsp = 8?/ 60W Loudspeaker

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Wednesday, July 10, 2013

1W Audio Amplifier Using NCP2830

This 1w audio amplifier circuit is designed using NCP2830 audio IC manufactured by ON Semiconductor.This audio power amplifier ic designed for portable communication device applications and require few external electronic components.

1W Audio Amplifier Circuit using NCP2830

NCP2830 is capable to provide 1W continuous output power in 8 ohms load.NCP2830 audio power amplifier main features are : high quality audio (THD+N = 0.04%) , low noise: SNR up to 100 dB, overall system efficiency optimization: up to 89% , Superior PSRR (−88 dB): Direct Connection to Battery , Very Low Quiescent Current 7 mA , Optimized PWM Output Stage: Filterless Capability , Selectable gain of 2 V/V or 4 V/V .

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Tuesday, July 9, 2013

Simple 9 V Battery Replacement

This circuit was originally designed to power a motorcycle intercom from the vehicle supply system. This type of intercom, which is used for communication between driver and passenger, generally requires quite a bit of power. In order to improve intelligibility there is often elaborate filtering and a compander is sometimes used as well. The disadvantage is that a battery doesn’t last very long. You could use rechargeable batteries, of course, but that is often rather laborious. It seems much more obvious to use the motorcycle power supply instead.

9-V Battery Replacement Circuit Diagram
Power-Supply-Circuit-Diagram

A 9-V converter for such an application has to meet a few special requirements. For one, it has to prevent interference from, for example, the ignition system reaching the attached circuit. It is also preferable that the entire circuit fits in the 9-V battery compartment. This circuit meets these requirements quite successfully and the design has nonetheless remained fairly simple. In the schematic we can recognise a filter, followed by a voltage regulator and a voltage indicator. D1, which protects the circuit against reverse polarity, is followed by an LC and an RC filter (C3/L1/L2/C1/R1/C2). This filter excludes various disturbances from the motorcycle power system. Moreover, the design with the 78L08 and D3 ensures that the voltage regulator is operating in the linear region. The nominal sys-tem voltage of 14 V can some-times sag to about 12 V when heavy loads such as the lights are switched on.

Although the circuit is obviously suitable for all kinds of applications, we would like to mention that it has been extensively tested on a Yamaha TRX850. These tests show that the converter functions very well and that the interference suppression is excellent. Link

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Monday, July 8, 2013

12V DC Switch Mode Power Supply Rise

Basic Of Switch Mode Power Supply

In recent years, the use of switch mode power supply (SMPS) has become more comon as more applications demand for greater power eficiency. It makes use of semiconductor (mostly MOSFET) fast switches to switch DC input that has been rectified at high frequency. The advantages of high frequency switching are that it reduces the size of inductor, capacitors & transformer used. Other advantages of switching power supply over linear power supply are :

1) High Efficiency (up to 90% and above for nice design).

2) Output can be higher than input.
3) Able to operate over a variety of input power supply.
4) Able to have over output.

The setback of using SMPS compared to linear power supply is that it generates electrical noise which contributes to electromagnetic compatibility design issues & more part count.

Buck Converter SMPS

The SMPS circuit below from Power Integration makes use of LNK304 as its high frequency switch. Take note that this circuit is non isolated type which means that the output is not electrically isolated from the input & all testing ought to be completed using an isolation transformer to provide the AC line input to the board.

Make positive that you have electrical safety knowledge & experience before you embark on doing this project.

The features of this project is as summarized below.

Input : 85-265 VAC
Output : 12 V, 120 mA, 1.44 Watt
Low Cost : Only 16 components are needed
No-load power consumption : < 0.2 Watt

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Sunday, July 7, 2013

SP Network Voltage Indicator

Using this schematic is created a network voltage indicator electronic circuit. If the input voltage is gift across the network, the optocoupler transistor is open, T1 is blocked and controlled rectifier, Th1, is in a very state of conduction. Since each terminals of the piezoelectric buzzer is at identical potential, buzzer is off. If voltage disappears, the transistor T1 enters the conduction and therefore makes the terminal of buzzer to be placed on the bottom (maintains thyristor conduction state).

during this state of affairs, theres a sufficiently giant potential distinction across the buzzer and D5s to see that these 2 components to point AC power loss, each audible and visual. By pressing the reset button current is interrupted by Th1, therefore thyristor enter in blocking state and therefore the different terminal of the buzzer is connected to ground.

http://streampowers.blogspot.com/2012/07/sp-network-voltage-indicator.html

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Saturday, July 6, 2013

Build a MHz Oscillator using an ATtiny15

Most engineers will recognise the problem: Your circuit needs a stable 1 or 2 MHz clock generator (in the author’s case it was for a Pong game using an old AY3-8500). A suitable crystal is not to hand so you cobble together an RC oscillator (there are plenty of circuits for such a design). Now it turns out that you don’t have exactly the right capacitor so a preset pot is add e d to allow some adjustment . Before you know it the clock circuit is taking up more space on the board than you had hoped.

Providing the application does not demand a precise clock source a tiny 8-pin microcontroller may offer a better solution to the problem. It needs no additional external components and an old ATtiny15 can be found quite cheaply. Another advantage of the solution is that clock frequency adjustment does not involve changing external components and is not subject to component tolerances.

The microcontroller’s internal RC oscillator is already accurately calibrated to 1.6 MHz. With its inbuilt PLL, internal Timer 1 can achieve up to 25.6 MHz [2]. By configuring internal dividers the timer can output a frequency in range of roughly 50 kHz up to 12 MHz from an output pin. The difference between calculated and the actual output frequency increases at higher frequencies. A meaningful upper limit of about 2 MHz is a practical value and even at this frequency the deviation from the calculated value is about 15 %.

MHz Oscillator using an ATtiny15 Schematic

MHz Oscillator using an ATtiny15 Circuit Diagram

The circuit diagram could hardly be simpler, aside from the power supply connections the output signal on pin 6 (PB1) is the only other connection necessary.The example program, written in Assembler is just 15 lines long! With a program this short comments are almost super fluous but are included for clarity. The code can be downloaded from the Elektor website [1].

The program only needs to initialise the timer which then runs independently of processor control to output the clock sign al . The processor can then be put into sleep mode to memory used up the remaining 99 % is free for use for other tasks if required.

The OSCCAL register contains a calibration byte which allows some adjustment of the CPU clock. This gives a certain degree of fine tuning of the output frequency. A recommendation in the Atmel data sheet indicates that the CPU clock frequency should not be greater than 1.75 MHz otherwise timer operation cannot be guaranteed.

The more recent ATtiny45 can be substituted for the ATtiny15. In this case the CK SEL fuses should be set to put the chip’s Timer 1 into ATtiny15- compatible mode [3]. After adjustment to the program it will now be possible to obtain a higher (or more exact) frequency from the timer, the ATtiny45’s PLL can operate up to 64 MHz. Link

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Friday, July 5, 2013

Simple 600W Audio Amplifier Circuit Diagram

The 600W Audio Amplifier Circuit Diagram is based around {LM4702}manufactured by NATIONAL semiconductors&{MJ11029-MJ11028} by ON semiconductors It is a high fidelity audio power amplifier. Designed for demanding consumer and pro-audio applications. You can also use this circuit with AV receivers, Audiophile power amps, Pro Audio High voltage industrial applications etc Amplifier output power maybe scaled by changing the supply voltage and number of output devices. The circuit includes thermal shutdown circuitry that activates when the die temperature exceeds 150°c. CIRCUIT’s mute function, when activated, mutes the input drive signal and forces the amplifier output to a quiescent state.

Simple 600W Audio Amplifier Circuit Diagram

Power:
Maximum Output power @ 8ohms : 300watt
Absolute max power supply voltage :±38V to ±40V
Recommended power supply voltage :±30V to ±35V

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Thursday, July 4, 2013

Band 2 Preamplifier

This is a VHF amplifier for the Band 2 Radio Spectrum tuning approximately 88 - 108 Mhz.

Band 2 Preamplifier Circuit Diagram

Notes:
The circuit uses two 2N3819 FETs in cascode configuration. The lower FET operates in common source mode, while the upper FET, operates in common gate, realising full high frequency gain. The bottom FET is tunable allowing a peak for a particular station. Coil details follow:

L1 4 turns of 18swg air spaced with a 1cm diameter, the tap is one turn up from earth end...
L2 4 turns of 18swg air spaced with 1 cm diameter. The coupling coil is 1 turn interwound from the supply end. Enamel coated wire must be used.

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Wednesday, July 3, 2013

Simple Solar Flasher

This Simple Solar Flasher circuit is a single transistor fly back (Joule Thief) circuit that features a third coil. With it, flash duration and brightness is much enhanced, without resorting to large value capacitors.

Circuit Diagram:

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