Sunday, September 10, 2017

High Power Mosfet Amplifier IRF540N

1000W Mosfet Power Amplifier
This is my project high power amplifier circuit using MOSFET transistor as main amplifier, but this circuit is still a prototype which later I will make it into a circuit of power amplifiers that are ready to be tested. Previously visit also power amplifier circuit using mosfet listed below.
If you see a list of power amplifiers above, this amplifier is the same system. Unlike the Mosfet amplifier using a D-class amplifier system. In this project, I use the IRF540N transistor for its final amplifier, where this transistor can be voltage current flowing up to 33A and can power up to 130W each transistor. In this amplifier can use as much as 12x MOSFET transistor can be applied up to 1560W maximum. However, by using power supply voltages are qualified. In this power amplifier, I will supply with a voltage of 60V DC with a current rating of 20Ampere, making it possible to spend up to 1000Watt. Large enough if the output power up to 1000 Watt that can drive 15Inch woofer speakers as much as 2 pieces, but must still see the power speakers are used.

Below the schematic of high power MOSFET amplifier IRF540N:

High Power Amplifier Circuit using Mosfet
 PCB Layout Design High Power Mosfet Amplifier IRF540N:
PCB High Power Amplifier
PCB layout design power amplifier mosfet irf540n

Saturday, September 09, 2017

Subwoofer Controller Frequency, Phase, Gain

To create a 2.1 audio system, 5.1 channel home audio or active subwoofer, low pass filter/ Subwoofer controller is required to pass the low frequency and eliminate the high frequency. Because of the low frequencies that spread in all directions, the music recordings are mono low frequency, namely the right and left it's same. So it takes only one subwoofer, this low pass filter circuit should be able to adjust the frequency of the crossover so that the overall response frequency can be flat and can adjust to the frequency response of the subwoofer speakers used. Below the circuit design of subwoofer controller:
Circuit Diagram Subwoofer Controller Frequency, Phase, Gain
Working Principles
U1 A/B NE5532 as a pre-amp which amplifying a voltage of about 3X. Then the output is mixed so it becomes a mono signal. Then the signal goes into U2A NE5532 which functions as a subsonic filter, ie signal with the frequency below 20 Hz is eliminated. Signals with frequencies below 20 Hz can not be heard and often cause damage the subwoofer speaker.

Then signals with frequencies above 300 Hz are discarded by U2B, whose output is fed to a low pass filter whose crossover frequency can be adjusted from 35 Hz to 150 Hz with U3A NE5532. With the U2B, the slope filter becomes sharper. U2B and U3A functioned as a second order Butterworth filter.

The output of the above filter is inputted to a phase regulator whose phase can be adjusted from 0 to 180 degrees. The goal is for subwoofer sound phase like the sound of satellite speakers. Due to the placement of the subwoofer which is often not parallel to the satellite speakers so that the required phase correction.

For making this subwoofer controller easier, I share the PCB layout design for it below:
PCB Layout Design Subwoofer Controller

Frequency, phase gain subwoofer crossover

If you have any question please make a comment on comment box below.

Sunday, September 03, 2017

D200 Class-D Power Amplifier for DIY Audio

Power Amplifier D200 is quite good and reliable in its performance has a power output of about 200Watt 8Ohm. Power enough qualified to drive 12-inch subwoofer speakers. And also no less interesting, this power amplifier is perfect for you who just started (beginner) assemble class D power amplifier. By composing, the circuit of Op-Amp TL074 as a comparator circuit. audio signal and triangular wave then driven again by the driver transistor BD139 and BD140. And the final will be processed by the IRF9540 and IRF540 MOSFET transistor. Then the signal is still shaped square wave will be filtered by a low pass filter circuit to become a sine wave. An output will be forwarded to drive the speakers.

Below the full schematic of D200 Class-D Amplifier, simple Class-D Amplifier and suitable for a beginner of Class D Amp Fans DIY Audio.

D200 Class Power Amplifier circuit diagram diy audio
If you need an image more clearly please give me your email I will send it, Leave it on comments box below.

PCB Layout Design D200 Amplifier Class-D diyaudio

PCB Design D200 Class D Amplifier

This Power Amplifier is more efficient than power amplifier conventional. Power supply voltage need for this amplifier about +45VDC GND -45VDC. Use the good power supply or you can use switching power supply for audio that has minimum 10A ratings.

Amplifier Project:
200w power amplifier circuit class D

Saturday, August 26, 2017

Power Amplifier 1500W Class D Titan

This high power amplifier has an output power of up to 1500W at 4Ohm impedance, using a class D power amplifier system, where the power amplifier system is very efficient, the efficiency up to more than 90%, much higher than the class AB power amplifier which reaches 50% Efficiency. As I described in my post class D power amplifier prior to the posting: 200W Class D Amplifier & 900W Class D Amplifier.

Power 1500W Class D requires several components to make the power amplifier and also pay attention to the components available in the market including; IC Comparator using IC TL071, Transistor Level Shifter using 2N5401, IC Logic using CD4049 IC, protection IC using combination of NE555 and LM311, IC Driver using IC IR2110, with 2 pairs Different Power Mosfet, Toroid, Email Wire, Capacitor MKP , Resistor, Diode, Led, Non polar Capacitor, Elco, IC Socket, Heatsink, PCB, Male and female socket, Cable. And below the Circuit diagram of its power amp:

High Power Amplifier Circuit Diagram Class D titan
The above circuit is almost identical to the series of Power Amp D-Class 3000W Gambit, a significant difference that is in Mosfet Transistors are used, the Power Amplifier is only using 2 IRF MOSFET transistor amplifier, but this power amplifier also has a high-quality performance, Very large power output. To use Mosfet Transistor I suggest you use power MOSFET with IRFP4227 type, because this transistor is very good compared to good Mosfet Transistor for Audio (Switching) than like IRFP460 / IRFP460N, IRFP250, IRFP260 etc.

For ease of making 1500W Class D power amplifier, I also share the PCB layout is as follows:
PCB Layout Power Amplifier 1500W Class D TitanHigh Power Class D Amplifier PCB


*Good Luck*

Wednesday, August 23, 2017

Power Amplifier APEX H900 - Efficient, Flat and Powerful

APEX H900, Power Apex is very efficient and flat on all frequencies so we can place this apex anywhere as we want it, either mid high, mid vocal, mid bass or sub low of course although a bit complicated but the satisfaction of assembling class H will be paid when we've listened to the results his sound output power amplifier.

This power in claims can produce the power of 900W RMS 8ohm, 1200W RMS 4ohm, 1600W RMS 2ohm. H900 will taste ability when you used to drive speakers with a size of 21 "by 2 pieces per channel (4 ohms) then you will really get audio sound really steady, powerful and classy.

Below the schematic diagram of APEX H900 audio amplifier:
Power Amplifier APEX H900 - Efficient, Flat and Powerful


Component List:
Resistor 1/4W: 3K3 x1, 10K x1, 33K x1, 43K x1, 47K x1, 4K7 x6, 22K x4, 1K x3,1K5 x2, 100R x2, 680R x1, 330R x1, 100K x2, 5K6 x1, 22R x1, 150K x2, 56K x3, 390R x4.
Resistor 2W: 4R7 x5, 22K x2, 3K3 x2, 2K2 x2, 6K8 x1. 0R22 5W x 8.

Capacitor Elco: 10uF/16V x2. 10uF/63V x2, 22uF/25V x3, 2u2F/25V x2, 47uF/25V x2.
Capacitor Ceramic: 47N x5, 10N x1, 100N x4, 150pF x2, 100pF x2, 470pF x1, 33pF x1, 22pF x1.
Diode: Zener 15V x3, BAV21 x 3, 1N4148 x2.
Transistor: 2N5401 x2, BF421 x1, MJW340 x2, MJE350 x1, MJE15033 x1, MJE15032 x1, 2SC5200 x4, 2SA1943 x4, MOSFET IRF540 x4.
IC: NE5532 x1, IR2117 x2.

For a connection terminal of a circuit schematic with signs mentioned above are as follows:
IN: Audio Signal Input
OUT: Output to the Speaker +Connection
GND: Ground
A and B: The function is as a facility to bridge the amplifier, making it easier to bridge the amplifier just add the switch only.
PRO: As a terminal into protection circuit if output speaker has output DC voltage, so can avoiding damage the speakers. For the protection circuit you can visit here:Audio Speaker Protector
For this Power Amplifier circuit is a type of power class H, which requires a step voltage supply.
+ HV = + 120VDC
+ MV = + 60VDC
-HV = -120VDC
-MV = -60 VDC

To make it easer assembling this APEX Audio Amplifier we share the PCB design.
PCB Layout Design Apex H900 Audio Amplifier
This Power Amplifier Apex H900 is the development of Apex H900 power amplifier by Mr. Mile Slavkovic.