Monday, January 23, 2017

TDA2030 make for Subwoofer Amplifier Circuit

TDA2030 is a widely used 14W audio power amplifier monolithic integrated circuit in Pentawatt [ package, intended for use as a low-frequency class AB amplifier. However, some home theater prototype came with TDA2030 design has a problem of low volume. There are ways to increase the subwoofer performance that uses TDA2030A design.

TDA2030 make for subwoofer amplifier circuit

Updated Schematic TDA2030 Subwoofer Amplifier adding voltage regulator 7815 and 7915 for supply voltage subwoofer filter:

TDA2030 Subwoofer amplifier using 4558 filter subwoofer


TDA2030 Subwoofer Amplifier Circuit Diagram

TDA2030 make for Subwoofer Amplifier Circuit


Increase subwoofer performance By Adding subwoofer filter 4558 and changing resistor

Some circuit board designs usually soldered a 10K or less value resistor in place of default 22K recommended by the 2030 designers. Use 22K or more instead of 10K to increase the gain thereby reducing the bypass of input to ground. (input should be noise free) However, the increasing gain over the recommended value may result in overheating the IC unless you have best heat control methods. And adding subwoofer filter 4558 can filtering subwoofer audio signal input.

Layout PCB Subwoofer Amplifier TDA2030 complete voltage regulator 7815 and 7915 for subwoofer filter 4558:
Layout PCB Subwoofer amplifier TDA2030 and 4558
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TDA2030 Amplifier complete Subwoofer Filter 4558 PCB

TDA2030 Amplifier Circuit and 4558 Subwoofer circuit complete

Soft Start for Power Amplifier Circuit

Soft start is a circuit/module that serves to prevent the MCB (Main Circuit Breaker) at home is lost when the power button is pressed power amplifier / turned on first. Here is an example an overview of a soft start circuit.

Soft Start for Power Amplifier Circuit

Schematic Diagram Soft Start Power Amplifier especially on the power supply circuit.
soft start power amplifier circuit schematic diagram
At the time the power button is pressed, the circuit will soft start delay of approximately 3.5 seconds. The Circuit will delay voltage of 220V AC will supplying into circuit power supply contained in the power amplifier. Long delays depending electrolytic capacitor located at the base of the transistor c337. The greater its capacity electrolytic capacitor 220uF, the longer the time delay, but a long delay I do not recommend/ because it will burden resistor 68r / 10w, ultimately resistor it can be burnt.

For make the Soft Start Circuit we provide Layout PCB for making it easier.

Layout PCB Soft Start CIrcuit for Power Supply on Power Amplifier

Soft Start Circuit for power amplifier circuit to resist main AC

soft start circuit for power amplifier power supply

Wiring Diagram connection soft start circuit with power amplifier:

wiring diagram soft start circuit


Download pdf file schematic diagram:

Sunday, January 22, 2017

How to Parallel Final Transistor Power Amplifier

How can parallel the final transistor power amplifier circuit? comes to a question from a visitor elcircuit.com. And whether the function of the parallel final transistors? 
How to increasing wattage power amplifier by parallel transistor final.
First, how to paralleling final transistor power amplifier you must know the supply voltage, Emitter line, and Base transistor line, from power amplifier circuit. Then connect it to the parallel transistor, you can see below the schematic from power amplifier and the parallel transistor final.

I take an example 2800W power amplifier circuit on the block of its final transistors.
Final Transistor Amplifier 2800W
After we know its line, then you must parallel transistor like the schematic below:
Parallel Transistor final power amplifier
Then connect all together, as jumper connector to paralleling final transistor:
J1 to Emitter on power amplifier circuit
J2 to (+) Voltage supply 
J3 to (-) Voltage supply
J4 to (+) Base or NPN Base Transistors
J5 to (-) Base or PNP Base Transistors
J6 to Ground

Resistor before input voltage on a base function to divide voltage current and produced heat evenly in order to transistors. And the capacitors is to temporarily store incoming voltage to the transistors, in order to do not drop when a high load on each transistor. 
For transistors TIP3055 and TIP2955 in parallel are just as an example, you can change as needed. It would be better you use transistors of the same type in a circuit of power amplifiers.

To make it easier, I share the Layout PCB for boost transistor final amplifier:

Layout final transistor amplifier
Boost Final transitor power amplifier circuit
Actually already many discuss this issue. But it would not hurt my post back with a more simple and easy. What is the final transistors parallel function? Many say the final transistor parallel, it can increase the power produced wattage power amplifier. Is it really like that? The answer correctly. By increasing the number of transistors final wattage power will increase. 

But in addition to adding the final transistors, transformer capability should also be considered. As more transistors finals are mounted, so the power and the load will also increase. If not matched by sufficient transformer capability, then the power amplifier will drop immediately.

Download Final Transistor Booster Schematic.PDF

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

Download:

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
Diode
D1, D2 = 1N4001
Resistor
R3 R1, R2, R3, R4, R5, R7, R9, R6, R8, R10 = 1k
Transistor 
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