Friday, January 20, 2017

TDA2040 Power Amplifier Circuit

TDA2040 Power Amplifier Circuit is an amplifier circuit that uses a single type IC TDA2040 as the main amplifier. These amplifiers typically used for reinforcement on the car because of its practical and have gained sufficient.

TDA2040 Power Amplifier Circuit monolithic class AB amplifier

TDA2040 is a type IC monolithic with the operation of the class AB amplifier circuit. This IC TDA2040  inside is equipped with a protection circuit for a short circuit, especially on lines speaker output. 
TDA2040 Schematic Diagram 20Volt 20Watt Hifi Amplifier

The TDA2040 Power Amplifier circuit above is an example circuit collated by strengthening the AB class using a single IC, the circuit is not quite different from the power amplifier circuit using TDA2030. wherein the circuit TDA2040 has a power output of 20 watts. IC TDA2040 has low distortion levels that are well suited for reinforcement at home amplifier. If you want to make this TDA2040 Power Amplifier, we provide Layout PCB and schematic with the file format (.PDF) below:

Layout TDA2040 TDA2030 TDA2050 power amplfieri circuit

PCB Layout Power Amplifier TDA2030 TDA2040


Thursday, January 19, 2017

Low and High Pass Filter circuit

Low and High Pass Filter circuit

This low and high pass filter circuit, it's a simple circuit that can filter audio signal low and high frequency. As function same as the bass booster and treble booster, but this circuit is just enhancing gain low and high audio frequency, so sound output have more bass and treble than vocal/middle.

Low and high pass filter using IC 4558 based Op-Amp Chip for main amplifying and filtering the audio signal. This circuit just need a 12VDC power supply ( non-CT ) and you give audio signal input, the audio signal output is more bass and treble, so soft and so powerful.

Below the complete schematic diagram and layout PCB, include pdf file and 3DS file for view 3D PCB layout.
Low Pass Filter and High pass filter circuit diagram

Low Pass Filter Layout PCB

High pass filter layout pcb using ic4558

File Download :

Monday, January 16, 2017

How to make subwoofer using IC TDA2822

Accordance with the above title How to make subwoofer using IC TDA2822, I want to share circuit diagram about IC TDA2822 for subwoofer speaker system. It cheap to built subwoofer audio system, by using subwoofer filter 4558 for filtering audio input and TDA2822 amplifier for driving subwoofer speaker. See the circuit diagram below:

Circuit Diagram TDA2822 Subwoofer
How to make subwoofer using IC TDA2822

TDA2822 Subwoofer on circuit diagram above has mono output power about 20W (bridge output), it is small output power for subwoofer system. you can use small speaker size for using this amplifier.

Download: TDA2822 for Subwoofer System.pdf

Sunday, January 15, 2017

High-Quality Subwoofer Low Pass Filter

This high-quality subwoofer low pass filter for your audio system.  This subwoofer filter control using an IC op-amp as a filter and booster subwoofer. The IC op-amp is using LM224 and TL072. The subwoofer filter is high quality and high performance, it gives you more bass and sub on your audio that you have. Below its schematic diagram for subwoofer filter and control include the power supply schematic.

High-Quality Subwoofer Low Pass Filter Circuit Diagram
High-Quality Subwoofer Low Pass Filter Circuit Diagram

Wednesday, January 11, 2017

Subwoofer Module Amplifier using 4558

Subwoofer Module amplifier Circuit is indeed very popular with the audio hobbyist. The circuit that I publish, is a circuit of modules that use the subwoofer amplifier ic op-amp 4558 which acts as a reinforcement of bass tones (subwoofer) assisted of it's by the workings of some supporting components such as resistors, capacitors. 

The workings of this circuit adds to the gain on the frequency of low tone (LPF), so that the sound output is generated for the subwoofer speaker to be more steady and loud bang, but with the voice that minimal noise, in addition to the performance of the power supply should also be stable, so that it will sound hum was gone. Below circuit diagram, PCB design, and How to assemble audio signal subwoofer module amplifier.

Subwoofer Module Amplifier Circuit Diagram

Subwoofer Module Amplifier Circuit Diagram

This circuit requires little components, are also easily accessible. for the power supply voltage, symmetric voltage 15VDC required for maximum results. And PCB layout below will help you more easily to assemble.

PCB Design Subwoofer Module Amplifier

PCB Design Subwoofer Module Amplifier using 4558

Subwoofer Module Assembled Video:

Wiring Diagram

Next, for the installation, only parallel input audio subwoofer output with tone control circuit, so that if the Volume on the tone control circuit in any state 0, Subwoofer can still set the volume. because the output of the subwoofer module with an output paralel tone control.

subwoofer wiring diagram circuit
 Enough circuit Subwoofer Module Amplifier. if anyone ask please comment below.

Friday, January 06, 2017

NE5532 OpAmp Based Headphone Amplifier

This circuit is Headphone Amplifier using IC NE5532 , its ic usually using as OpAmp with very good performance. And we just using it for headphone amplifier. see this circuit diagram of it below complete with power supply schematic.

NE5532 Based Headphone Amplifier

NE5532 OpAmp Based Headphone Amplifier

This headphone amplifier schematic is a typical application schematic. Experiments show that the NE5532 for low-power amplifier, excellent performance and good price. Voltage supply about 12V DC assymetric. 

Thursday, January 05, 2017

STK0105 Power Amplifier and IC Inside

This power amplifier circuit is most popular power amplifier using IC STK0105, powerfull power amplifier have output power about 100W at 8 Ohm Load with voltage supply about 50VDC. If you want to build or knowing inside IC STK0105 im publish the IC STK0105 Schematic Diagram that the circuit drawn by Bassblaster505 you can see more at EasyEDA see the link below :

Schematic Diagram of IC STK0105
STK0105 Power Amplifier and IC Inside

Part List STK0105 Intregated Circuit
D1, D2 = 1N4001
R3 R1, R2, R3, R4, R5, R7, R9, R6, R8, R10 = 1k
TR1, TR2, TR3, TR5, TR7 = 2DC2412R
TR4, TR6, TR8 = BC807_16

If you finished making your own IC STK0105 , you must to assembling the ic with following circuit for working power amplifier using IC STK0105.

STK0105 power amplifier circuit diagram

LA4440 Stereo Power Amplifier

Return again at IC LA4440 power amplifier, stereo power amplifier circuit using IC LA4440 to provide an output power of 18 watts stereo. Stereo power amplifier circuit with LA4440 IC works with a voltage source + 12 volts DC with a current of 2 amperes. Power amplifier IC LA4440 is often used on the car stereo amplifier tape. IC LA4440 is a stereo amplifier chip that has the following technical specifications.

"It has 46dB of ripple rejection Low distortion Good channel separation Thermal protector

Overvoltage protector Surge voltage protector Pictures schematic and list of components to create a stereo power amplifier with IC LA 4440 can be seen in the following power amplifier circuit diagram.

Circuit stereo power amplifier with IC LA4440 above can be used to drive a load of 2 Ohm speaker load up to 32 Ohm, so it can be applied in a comprehensive audio device. 

Stereo power amplifier Circuit LA4440 IC can also be used to move the Horn type speaker audio system PA (Public Amplifier). Stereo power amplifier Circuit using LA4440 IC can be prepared by the PCB in the market. On the PCB market, stereo power amplifier IC circuit has been equipped with LA4440 tone control circuit is arranged in one piece PCB. 

LA4440 IC will generate heat when working with large volumes, therefore it is necessary LA4440 IC equipped with cooling (heat sink) to remove the heat generated. Power supply to circuit IC LA4440 stereo power amplifier can use a power supply with output voltage of 12 volts DC and the current minimum of 2 amperes.

Wednesday, January 04, 2017

Bass Treeble Booster Circuit

The tone amplifier circuit I have often referred to the Tone Booster. Its function is to strengthen the bass and treble tone gain for the audio devices you have at home. 

Should be emphasized again that this circuit I recommend to audiophiles who want to have a booming audio device prominent bass and treble powerful. The circuit is suitable for lovers of loud music is not music smoother or softer (mellow) due to the addition of the amplifier's tone of voice produced louder.

Actually I have a lot of product on the market to strengthen the bass and treble tone gain like Galaksi 4558, Turbo Bass, Giga Bass, and etc, it so forth but in my opinion, I do not like the product market because of the frequency of the tones produced less powerful. This means that most of the commercially available voice was too smooth and lacking bass boom, despite the fact that for the bass tones already powerfull according to me. 

But if you do not like the loud music, no anything because the music tastes of each individual. But this circuit worth the try to complete your audio device at home. See the schematic diagram below :

Bass Treeble Booster 
Bass Treeble Booster tone

The Schematic above are still in mono version, so if your audio device using the stereo version (L & R) you just make one more circuit to be paired to the device next to it.

This scheme is quite simple and not are expensive, the core of the circuit tone booster is a circuit filter tone passive consisting of R and C are collated in such a way so as to get the tone of the pass, then the circuit reinforced by an NPN transistor to be in get voice prominent and steady.

Different transistor sometimes her voice was different circuit transistor eg C945, C1815, C1162 and D313 may be even harder. But my advice to use only standard transistor C829 or C1815 is enough.

TDA7386 Power Amplifier

I will give an explanation of TDA7386 Power Amplifier for previous post Making Surround Amplifier TDA7386 4 Channel.

TDA7386 IC amplifier

TDA7386 Pins:
Pin 1 TAB: Connection to the metal plate of the integrated circuit, it is connected to negative.
Pin 2 Negative at power output (P2)
Pin 3 Amplifier output 2 (-)
Pin 4 Standby. Ignition at voltage greater than 3.5 volts. Off at less than 1.5 volts.
Pin 5 Amplifier output 2 (+)
Pin 6 Positive recommended 14.4 volts
Pin 7 Amplifier output 1 (-)
Pin 8 Negative at power output (P1)
Pin 9 Amplifier output 1 (+)
Pin 10 SVR Capacitor 47 uF 16V to earth.
Pin 11 Audio Input Amplifier 1
Pin 12 Amplifier audio input 2
Pin 13 S-Gnd grounded audio (negative, see considerations).
Pin 14 Audio Input Amplifier 4
Pin 15 Audio Input Amplifier 3
Pin 16 AC-Gnd capacitor 0.47uF to ground.
Pin 17 Amplifier output 3 (+)
Pin 18 Negative at power output (P3)
Pin 19 Amplifier output 3 (-)
Pin 20 Positive Recommended 14.4 Volts
Pin 21 Amplifier output 4 (+)
Pin 22 Mute, Mute to less than 1.5 volts, with sound after 3.5 volts.
Pin 23 Amplifier output 4 (-)
Pin 24 Negative at power output (P4)
Pin 25 Offline

Due to its high consumption, extreme care must be taken with the ground and power connections.
In addition to the ground connection of the pin 13 must be connected to the audio input section and
A common ground that is not direct to some negative of an exit.

Usually a common point is used to the power capacitor

Technical Details :
In the specifications we speak of 49 W for each channel.
We can say that it is not really as powerful as it can deliver around 20 watts per channel at low distortion levels with a load of 4 ohms and power of about 14 volts, plus the maximum total heat dissipation is 80 watts ( @ 70 ° C).

This audio amplifier is designed for car radios, used in Sony®, Kenwood®, Pioneer® and other high-end radios.

But each channel of the TDA7386 can develop 49 W at 15.2 volts with a load of 4 ohms with very high distortion and saturation levels.

Still it is of high power and by its few components is an amplifier easy to construct.

The power supply should exceed 15 amps and should not exceed 18 volts.

Schematic Diagram of the TDA7386 Power Amplifier based on the data sheet of the manufacturer:

TDA7386 Power Amplifier

In this amplifier the audio gain is fixed (26dB)

The pin 10 SVR capacitor should not be less than 10 microfarads and helps to reject noises
From the power supply.

All capacitors are 16 volts but may be higher voltage.

The manufacturer recommended capacitor value for each input is 0.1 microfarad (104).

 In automotive radios the heatsink is quite reduced so for a more continuous home working amplifier a good heatsink should be used and a fan can be added from those that use computer sources.

In order to avoid introducing noise we add a resistance of 33 ohms 1W,
In addition to a capacitor of 220 microfarads of 16 volts or greater.

It is worth repeating that the life of the electronic components decreases by working at high temperature.

In addition incorrectly connected lands (-) can cause annoying noises
Or even oscillations that may damage the integrated circuit.

Tuesday, January 03, 2017

Making Surround Amplifier TDA7386 4 Channel

Surround Amplifier TDA7386 4 Channel its actually took from circuit power amplifiers that are in car Head Unit. I apply for a home room, almost the same as a home theater. I added with a homemade subwoofer. Making subwoofer you can see here: Subwoofer speaker and amplifier project 

Surround amplifier using TDA7386 is very cheap just need some component. You just spend money about $2 to make this amplifier. For the circuit schematic power amplifier you can see below:

Schematic Power Amplifier TDA7386, Surround amplifier
Surround Amplifier TDA7386 4 Channel

Power Amplifier technical information , the power amplifier have output power 40W x 4, each channel have more output power 40W. Power supply need 12VDC in this post im using 3Ampere transformator. Capacitor power filter using 10000uf 35V. See more detail about TDA7386 Power Amplifier

Picture of IC TDA7386 

IC TDA7386

Below the picture of power amplifier is ready to operate :

TDA7386 Power Amplifier

surround sound amplifier circuit

Power supply circuit power amplifier tda7386

For surround sound amplifier im using crossover passive to separate the tone of High Low Pass filter, Front , rear and subwoofer. See the wiring schematics below and the tested video :

wiring home theater wiring surround sound ampifier

wiring home theater audio amplifier

Video Test Surround Amplifier using IC TDA7386

Monday, January 02, 2017

Transistor Type NPN/PNP Tester Circuit

Now knowing the feet of transistors do not need hard and must use complicated equipment, just with a simple circuit is easily made decisive feet PNP or NPN transistor complete with Base, Collector and Emitter its.

transistor tester circuit
transistor checker circuit schematic

The principle works only utilize reinforcement (high-gain amplifier) that make LED lights up blinking. The trick disconnect one of transistors and then step on the of transistors unknown. If the type NPN (right) corresponding the feet the C-B-E LED will light up.

No need to switch to deactivate the chain of 3Volt DC voltage source, only to pull out one of transistors, the circuit tester is dead. To make the PCB is also fairly easy to quite a line using a cutter knife and then soldering.

Lamp Switch by voice or tap hand circuit

On this occasion, I will share a the circuit very useful for everyday life. I named this series circuit switch Lamp With Sound Sensor (Tap), it is because I adjust to the workings of this tool. 

With more advanced electronics technology and development we do not need to use a conventional switch for turning on and off lights. Simply use this tool we can just give a voice / pat hand is sufficient to turn on the lights in the home. 

This circuit is a non-inverting amplifier using IC LM358 Op-Amp. I have modified this circuit using an electronic component that is easy to get on the market.

Lamp Switch by voice or tap hand circuit
Components list:
1. IC LM358
2. R1: 10 K Ohm
3. R2: 39 K Ohm
4. R3: 1 K Ohm
5. R4: 1 M Ohm
6. R5: 10 K Ohm
7. R6: 2.2 K Ohm
8. R7: 1 K Ohm
9. R8: 1 K Ohm
10. C1: 100 pF
11. C2: 2.2 uF / 25 Volt
12. C3: 100 nF
13. C4: 10 uF / 25 Volt
14. C5: 2.2 uF / 25 Volt
15. D1: 1N4148
16. D2: 1N4148
17. D3: LED
18. D4: 1N4002
19. D5: 1N4002
20. Condenser Mic
21. Potentiometer: 200K Ohm (Used to adjust the sensitivity of the sensor)
22. Transistor TIP 41
23. Relay: 12 Volt DC