Sunday, August 13, 2017

LM324 Giga Bass Pro Circuit

Here I will share the circuit to add bass sound louder, but still pleasing to the ear.

The following circuit uses a single 12VDC power supply, in addition to functioning as a bass sound enhancer, this circuit can also be used as a low pass filter. Unlike the bass/subwoofer filter circuits that are here like: Subwoofer Module Amplifier using 4558 with PCB
This circuit is enough to use asymmetric + 12V voltage, making it easier for you to get the voltage supply. And this circuit using op-amp LM324 as the main sound processor.

Here is a circuit diagram  called Giga Bass Pro:

Bass Enhancer Circuit Giga  Bass

PCB Layout design for Giga Bass Pro:
PCB Giga Bass Pro Circuit

Sunday, August 06, 2017

900W Class-D Next Generation Power Amplifier

900W Class-D Next Generation Power Amplifier Circuit

The Class-D Amplifier concept
In the last decade, in the world of audio power amplifiers have been available commercial products for audio.A new type amplifier that is Class-D Amplifier. Unlike the Class-A, B, AB, in which the incoming signal directly, is amplified in the form of the original sound signal, in Class-D Amplifier, a sound signal counting is performed enter but still in analog method, the signal strengthened. At the end level (final stage) of the amplifier, the signal is returned to sound signals by using the inductor-capacitor (L-C) filter.

Schematic Diagram
There are many designs of Class-D Amplifier schemes that can be found on the internet. This time that will be discussed in this paper is Self Oscillating Cass-D Amplifier IRS-900D. This scheme circulates on the internet, and is pretty good, can be implemented and has an output capability of up to 900 Watt at 4 ohms, a considerable capability.
To create a good Class-D and high quality is required good component quality and layout PCB appropriate for high-frequency switching. However, for this limitation, it can not produce the quality that meets industry criteria but is still very satisfying when compared to Class-AB class assemblies sold in the market.
Here is a scheme that applies the design and concept of class D. This scheme has been modified by the author Kartino Surodipo to be more reliable and safe. The red color values below are replacements of the original schema values and there may be no paths on the PCB. So it should be soldered under PCB.
900W Power Amplifier Circuit Diagram

The above circuit uses +/- 100V DC power supply. Besides, a separate 12 Volt power supply is required to drive the IR2110 IC gate driver. The consideration made separately is because it will further simplify the scheme. With the above series, suitable for allotment from the subwoofer to mid-hi. This designation is not disappointing, considering that in the market the 900 Watt assembly kit is generally reserved for Subwoofer applications until Mid-Hi.

Modifications can be made to improve performance. For example by increasing the oscillation frequency capability. In Class-d self-oscillation, the oscillation frequency velocity is determined by the on-off speed effect of the closed loop feedback which involves the entire component in the feedback loop. Improvement can be done by replacing OP Amp comparator with higher capabilities, eg from Burr-Brown. And the main one is the mosfet power, which can be selected by the product with low gate capacitance from IXYS or IRFP4227, or IRFB4227, or other brands with more advanced generation. To note is the smallest gate capacitance and the highest switching speed, and of course the big SOA.

PCB Layout Design
PCB Layout 900W Class D Amplifier

If you want to buy PCB please visit here: PCB CLASS-D 900W
Buy PCB Design Class D Amplifier

Here's a little explanation of the class D amplifier and also for the scheme and PCB Power Amplifier 900W class D. PCB you can buy on the link contained in the post. PCB made by original Mr. Kartino Surodipo. For the next post, I will share the installation and try the quality and power of this D-class power amplifier.

See also 200W Class-D Amplifier

Friday, July 28, 2017

High Power Audio Amplifier MJL21194, MJL21193

High-power amplifier circuit using a pair final transistors MJL21194 and MJL21193, where diagonal transistors are recommended for the use of power amplifiers with high-power audio power, and linear applications.

Just right as follows the high power amplifier diagram.
High Power Audio Amplifier MJL21194, MJL21193
Has been mentioned above, this power circuit using a pair of MJL transistors, these transistors are often used as equations with transistors 2sc5200/ 2sa1216. But by using the MJL series, the power output is greater and the maximum voltage is superior. The power output for this Transistor is up to 200Watts with a maximum voltage of 250Volts.
In the circuit scheme, using 3 pairs of transistors final. So it has a maximum output power of up to 600Watt, with DC supply voltage 95Volt, using a transformer with an ampere rating of at least 15A-20A.

Dare try to assemble this amplifier? I am ready to share PCB Layout for you, making it easier to put on your PCB.

PCB Layout Design
PCB Layout design Power AMplifier MJL21194
Top View

MJL21194 MJL21193 Power Amplifier PCB Layout.
Bottom View
3D design that is more or less like this would be :)
High power amplifier circuit MJL

If you have any question you can give a comment below. Thanks and good luck :)

Tuesday, July 25, 2017

200W Class D Power Amplifier IRF540/IRF9540

200W Power Amplifier Class D
Class D Switching Power Amplifier Project
Related to the power of an AB class amplifier is categorized as efficient in power usage, but the heat absorption requirements are still large.
This is because the final transistor is not employed until saturation conditions, where the lowest heat dissipation occurs when the transistor is fully conducting (saturated) or does not deliver at all. In class AB, the transistor varies the current/voltage current (according to its input waveform), residing in this state, each working half its wave cycle, thereby even though the efficient heat absorber required to cool the transistor must remain large.
If a sine voltage is matched by a comparator circuit with a triangular signal, the discharge voltage is a series of pulses whose width varies according to the high input voltage of the sine. During the positive parts of the audio signal, the pulse is widening and narrowing in the negative period. This pulse is then used to drive a power transistor in a condition on or off completely. This is the basic principle of class D amplifiers work.
Basic Principle of Class D Amplifier
Basic Circuit of Class D Amplifier

A series of pulses of the order of hundreds of kilo hertz of modulated width is used as a carrier of audio signals and passed through an amplifier. To recover the original waveform, it only takes a low-pass filter like a passive crossover circuit belonging to the mid-to-low range speakers. This filter skips variations of slow audio signals to be forwarded to the speakers and muted carrier signal frequency.
Hence the modulation can be made very linear, the distortion number of the amplifier can be lowered. And because heat scattering is minimal, it takes a small heat sink. The main advantages of the class D amplifier are much more compact dimensions, lighter and cooler than conventional amplifiers with the same output power.
While the benefits side audio quality, output class D amplifier is well known for a fast dynamic response so that a strong bass kick will be able to be reproduced with a more agile but stable and very powerful.

After getting a little familiar with the working principle and the advantages of class D amplifiers, I will share and let's create a class D power amplifier circuit with 200W power using IRF540N and IRF9540N MOSFET transistors. And driver circuit using transistor BD139 / BD140, 2N5401 / 2N5551. For comparator circuit use op-amp IC TL074. Here's the circuit diagram of 200W Class D Power Amplifier:

200W Class D Power Amplifer Circuit Diagram
The circuit is a series of mono power amplifiers, which can produce 200 Watt at 8 Ohm Speaker. If you make this stereo power amplifier it can produce 2x200W or 400W output power.
For the power supply voltage, you can use 35V-55V DC CT circuit, use this Symmetrical Power Supply Circuit for this Class D amplifier.

To simplify making this class d amplifier I also share the following layout PCB Layout:
PCB Layout 200W CLass D power amplifier circuit
PCB layout drawings are original routing of the circuit schematic diagram above.
 Or you can also create PCB Layout on the image below the original made by FoxAlfa:
Class D 200W Power Amplifier Kit
You can buy this KIT Power Amplifier by visit this link: Dios 200Watt Class D Amplifier.
This my personal 200W Class D power amplifier for subwoofer speaker and use TDA7384 for 4 channel speaker mid and treble speaker, below the wiring circuit and video testing:
Power Amplifier CLass-D Circuit wiring

Video Test 200Watt Class D Amplifier
Class D Amplifier is Compact, Powerful, Low Cost, High Efficient.

Thursday, July 20, 2017

100W Power Amplifier TIP142/TIP147

Today I will share a power amplifier circuit entitled 100W Power Amplifier TIP142 / TIP147. Power Amplifier is so powerful, with 100Watt RMS power output at 8Ohm impedance, and has 150Watt RMS power output at 4Ohm impedance. The power amplifier circuit is capable of lifting 12Inch speakers with 200Watt 8Ohm power, both used for mid, midbass and subwoofer.

Below the Circuit Diagram and PCB Layout Design:
100W Power Amplifier TIP142/TIP147
In the scheme, the final transistor used TIP142 / TIP147, for the transistor datasheet you can find at datasheet file-base. The transistor has an NPN / PNP Darlington construction, so it has a stronger reinforcement. For buffer and driver circuit I use Transistor BC556AP PNP Transistor and TIP41 NPN transistor. For the installation of the driver transistor (TIP41) it is recommended to install the cooler with the final transistor, this works also for Thermo switch.

Power Supply Voltage required minimum 25V DC - 45V DC, To achieve good sound, use a well-filtered power supply circuit and use a transformer with a low amperage of 5A. Power Supply Such as this: Power Supply Circuit for Audio Amplifier

PCB Layout Design:
100W Power Amplifier TIP142/TIP147 PCB

PCB Layout 100W Power Amplifier TIP142/TIP147

Power Amplifier 1000W Circuit Diagram

Saturday, July 01, 2017

NE5532 High and Low Pass Output Filter Circuit

NE5532 is the OpAmp Integrated Circuit that can be used for adjustable tone before audio signal entering Power Amplifier circuit, below is describe the High and Low Pass Filter Circuit using NE5532 with output each channel Low and High Audio Signal.

In the video below listed schematic circuit or schematic diagram, also PCB Layout and Prototype 3d Design circuit. 
Circuit Diagram

NE5532 Low Pass and High Pass Filter\

This circuit uses 3 pieces of IC NE5532, which in each part op-amp is used to amplify the audio signal filtered by a series of capacitors and resistors.

An incoming audio signal is a mono audio signal which will be processed by this filter circuit then has two outputs for high frequency and low frequency.

High Pass and Low Pass circuit can be supplied with a DC voltage of 12V-15V CT or symmetrical voltage, use a good supply power to produce maximum sound output.For more details this circuit you can see the scheme above, to clarify the picture you can click to make it bigger. And to make it easy this circuit, already available picture PCB its layout.

 PCB Layout Design
NE5532 PCB Layout Design
3D Design
NE5532 HPF and LPF circuit

Sunday, June 25, 2017

500W Mosfet Power Amplifier 2SK176, 2SJ56

500W Mosfet Power Amplifier 2SK176, 2SJ56
A Project creates a power amplifier circuit with a power of about 500W RMS using a MOSFET transistor as the main amplifier of this power amplifier. By using 2 sets of transistor MOSFET 2SK176,2SJ56. Description of the power amplifier is already designed as the picture above.

To make this power amplifier circuit is needed also some other supporting components. More details can you see the schematic circuit below. 

Circuit Diagram
Mosfet Power Amplifier Circuit Diagram
The power amplifier circuit above is using power supply 32V CT, or you can use maximum voltage 45V CT DC Supply. Power amplifier output about 500Watt Mono if you want the Stereo amplifier you can multiply circuit and Output Power about  1000W. For easy makes this power amplifier we share PCB Layout design as below.

500W Mosfet Power Amplifier circuit

See also the video project:

Saturday, June 17, 2017

Super Bass Tone Control Circuit

Super Bass Tone Control Circuit
Here I will share a very useful tone control on your power amplifier circuit, using this tone control circuit as a pre-amplifier, making your power amplifier circuit more complete and more comfortable to hear. Below is an overview of the scheme and PCB layout for you to create.

Schematic Diagram:
Super Bass Tone Control Circuit Diagram
There are some components such as resistors, capacitors, and transistors, which are combined into a tone control circuit in such a way. Note that the J1 connector for the pin is as follows:
1. Audio Input from Media Player , Radio/TV/Tape/Mobile Phone/PC/Laptop/etc.
2. Audio Output to Amplifier
3. VCC Source Voltage about 12VDC - 16VDC
4. Ground
For the 2N2222 transistor, you can replace it with transistor C945, C828.

PCB Layout Design Super Bass Tone Control:
Super Bass Tone Control PCB Layout Design

Super Bass Tone Control

Tuesday, June 13, 2017

1600W High Power Amplifier Circuit complete PCB Layout

DIY Amazing High Power Amplifier circuit 1600W

This power amplifier circuit is a 1600W at 8 Ohm mono circuit that uses transistors as an amplifier.  Almost same with 2800W high power amplifier circuit, For stereo power amplifier circuit, you can use this circuit 2x and will issue a power of 3200W. Let us first see the circuit schematic below.

1600W High Power Amplifier Circuit Diagram

1600W High Power Amplifier Circuit Diagram

In the buffer circuit coupled with op-amp ic 4558, supplied 15VDC voltage, circuit power supply you can see in the picture is flavored transistor D313 and B507. Driver circuit using transistor MJE340 MJE350.  For use transformer, it's using one transformer by one circuit mono. CT of the transformer is not connected to the ground, will be a short-circuit. Due to this 1600W power amplifier circuit just use a plus and minus voltage only.

PCB LAYOUT for 1600W high power amplifier circuit
 PCB LAYOUT for 1600W high power amplifier circuit

PCB layout 1600W power amplifier

DIY 1600W High Power Amplifier Project by Guest elcircuit Facebook Fanpage: Junjun Mojendar

Power Amplifier Circuit Unfinished

1600W High Power Amplifier Circuit

high power amplifier circuit

1600W power amplifier

1600W power amplifier circuit

diy high power amplifier circuit

Video Test 1600W Power Amplifier Circuit:

The Power amplifier using final transistor 2SA1943 and 2SC5200 12 Set, for more powerful output amplifier using an original transistor. You can see the PCB Layout transistor as many as 12 sets by channel (Mono Amplifier) in order to issue a power of 1600W or 1,6kW at supply voltage 65VDC.

Below Updated the power amplifier builds completed and tested see the image and video:
Speaker for 1600W Power Amplifier
The speakers used 15"x2 12"x2 2x tweeter
1600W Power Amplifier Circuit for high power amplifier
1600W Power Amplifier Completed

High Power Amplifier for home quality sound

Wiring connection high power amplifier based for field amplifier

High Power Amplifier Project by Jun Modenjar

Saturday, June 03, 2017

Make a Digital Amplifier with PAM8610 Module

PAM8610 Module Power Amplifier Class D 2x15Watt
PAM8610 Amplifier Module
PAM8610 2x15W Stereo Digital Amplifier is a high-quality audio amplifier module that uses PAM8160 chip which can produce very clear sound and strong stereo separation.

PAM8610 Module Amplifier

Working voltage: 7V - 15V.
Output 2 stereo channel 2x10W (8Ohm) or 2x15W (4Ohm).
Output power: 10w + 10w (8 load)
Efficiency: 90%
Shutdown Current: 4uA
Quiescent current: 20mA
SNR: 86%
Total harmonic distortion: 5W / 1KHz / 8 ---- 0.1%
Frequency range: 20Hz-20KHz
Input impedance: 15K
Output Impedance: 4-8 Ohm
Dimensions: 30mm x 25mm x 2.5mm
Protection: Over Load, Over Temperature, Anti Popup Protection.

Material Specifications:
Using the chip from the latest DIODES INC PAM8610,
Using SMD components of high precision resistors, with tolerance of + - 1% 3. Layout of multi layer PCB with separate ground plane to ensure high S / N ratio, and low noise level.
PCB using Fiberglass material with thickness 1.6 mm, double-sided board.
The best quality PCB material
Using capacitor power type Low impedance more dynamic sound.

I made a power amplifier using this PAM8610 module using components not with high quality, the components I use as follows:

PAM8610 Parts for building HiFi amplifier

The first part of the power supply I use Switching Power Supply Unit with a 12volt DC output voltage ampere rating 1Amper, actual amperage rating that much less able to raise a voice of power amplifier PAM8610. I add a digital voltmeter to monitor the supply voltage. Then for the speakers use 2parts 3 Inch Speaker with 10W 4Ohm load power and also 2 pieces of tweter.

For volume settings and audio inputs use a stereo potentiometer and an additional RCA input jack. Power Amplifier using PAM8610 Class D.

Review and test PAM8610

I provide video in Indonesian version, following video build and test amplifier use PAM8610 Module.

Thursday, June 01, 2017

Led Lights on Music using LB1403 and transistor

On this occasion, I will share electronic circuit schematics on how to create the Led lights in conjunction with the music, or lights flashing on the music. This circuit is quite simple, the circuit has also been widely spread on the internet. However, at this time I will use a lot of lights to turn the lights on music together. By using audio signal amplifier circuit which will be forwarded to led using IC LB1403. However, I added a PNP transistor again to amplify the voltage going into the LED. So the Led used can be much lighter and more stable.

Immediately PCB without the following scheme, or you can buy PCB here PCB VU LED LB1403:

PCB LB1403 Circuit
On the PCB above that is so then slightly modified for the placement of the led lamp driver transistor, so I added a hole and removed the 330 Ohm part to directly connect it.

Led Lights music circuit
I removed 330Ohm Resistor, and jumper it. Because of the + Voltage for supply the emitter PNP Transistor TIP42. So that required 12V Voltage.

Transistor TIP42 Datasheet
Above is a PNP transistor, the transistor I use is TIP42C type with the foot construction as above.

LB1403 Circuit led lights music
Then after the incoming voltage to the transistor emitter is already full, I added a hole for the emitter leg so that the base and emitter can go directly to the PCB.

Led Lights music pcb
My transistor is soldered. into the PCB by bending the foot to be affected by the opening visible copper, so it can be soldered.

Below is finished project led lights music and video test:
Led Flash music

Video Test and Application