APEX - 500W Power Amplifier B500 Circuit Diagram

This the easy and simple APEX - 500W Power Amplifier B500 Circuit Diagram. Power amplifier circuit schematic APEX following B500 visible part of the Pre-Amp use type IC NE5532. The output of IC NE5532 is given to the driver amplifier transistor. Part of these drivers will have two different outputs of phase from each other by 180 °. Part driver consists of transistors Q1, Q2, Q3 and Q4. Because the final amplifier circuit requires considerable input signal, then the driver is compiled with Darlington configuration.

APEX  - 500W Power Amplifier B500 Circuit Diagram

Kits B500 APEX 500W Power Amplifier

To be able to work optimally, the power amplifier circuit B500 APEX requires ration symmetrical voltage of ± 90 volts, with a current 15-20 Ampere. Use the original transistor amplifier, especially on the final / final, because the source of the applied voltage (± 90 volts) just for the ideal transistor or original. If unsure transistor used is not genuine, then do not ever use a working voltage of ± 90 Volts, because it can lead to the final amplifier transistor broken / damaged. To test this, use a voltage gradually, ranging from ± 25V, ± 30V, ± 45V, and so on.

In the assembly do not forget to give the room a good cooling in all transistor power, attach the fan (blower) to be stable when working at maximum volume primarily for purposes such as concerts stage.

Sourced By: elcircuit

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Super Home Stereo Amplifier Circuit Diagram

This is the Super Home Stereo Amplifier Circuit Diagram. This Super Home Stereo Amplifier Circuit Diagram using STK4241V.  This home stereo amp is equiped with STK4241V wich is a thick film hybrid IC, AF Power Amplifier (Split Power Supply) (120W+120W min, THD = 0.08%).

 Super Home Stereo Amplifier Circuit Diagram

Some features of STK4241V

    * Muting circuit built-in to isolate all types of shock noise.
    * Current mirror circuit for low 0.08% total harmonic distortion

For this 2×120W home stereo power audio amplifier we use a single monochip STK4241V to obtain up to 120W for each channel.

Printed Circuit Board (PCB) of Home Stereo Amplifier  STK4241V

STK4241V Stereo Amplifier Parts List
R6, R22 – 560 ohm / 0.125W
R1, R24 – 1K / 0.125W
R9, R10 – 1K / 0.5W
R7, R18 – 4.7K / 0.25W
R8, R19 – 4.7K / 0.5K
R2, R5, R21, R23 – 56K / 0.125W
C7, C17 – 3pF ceramic
C2, C20 – 470pF ceramic 50V
C6, C16 – 1nF 100V
C11, C12 – 100nF 100V
C1, C19 – 2.2uF 50V
C5, C15 – 1uF 63V
C4, C10, C13 – 10uF 63V
C9, C14 – 47uF 63V
C8, C18 – 100uF 16V

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Simple Home Stereo Amplifier Circuit Diagram

This sis the Simple Home Stereo Amplifier Circuit Diagram. This home stereo amplifier circuit using STK4241V.  This home stereo amp is equiped with STK4241V wich is a thick film hybrid IC, AF Power Amplifier (Split Power Supply) (120W+120W min, THD = 0.08%).

Some features of STK4241V

• Muting circuit built-in to isolate all types of shock noise.
• Current mirror circuit for low 0.08% total harmonic distortion

Simple Home Stereo Amplifier Circuit Diagram

For this 2×120W home stereo power audio amplifier we use a single monochip STK4241V to obtain up to 120W for each channel.

Printed Circuit Board (PCB) of Home Stereo Amplifier  STK4241V

STK4241V Stereo Amplifier Parts List

R6, R22 – 560 ohm / 0.125W
R1, R24 – 1K / 0.125W
R9, R10 – 1K / 0.5W
R7, R18 – 4.7K / 0.25W
R8, R19 – 4.7K / 0.5K
R2, R5, R21, R23 – 56K / 0.125W
C7, C17 – 3pF ceramic
C2, C20 – 470pF ceramic 50V
C6, C16 – 1nF 100V
C11, C12 – 100nF 100V
C1, C19 – 2.2uF 50V
C5, C15 – 1uF 63V
C4, C10, C13 – 10uF 63V
C9, C14 – 47uF 63V
C8, C18 – 100uF 16V

Sourced by: WWW.circuitsproject.COM

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Using IC TDA2052 60 Watt Amplifier Circuit Diagram

Build a This simple 60 Watt Amplifier Circuit Diagram. TDA2052 is a AB class amplifier which operates with (+,-25V) supply and generates 60 Watt power (sound) output. Since it has very low distortion and it is a AB class amplifier, it can be used in HI-FI systems. TDA2052 has mute and st-by functions so it can be controlled by external digital circuits. Very high temperature and output short circuit protections are included. You should use a heatsink to dissipate the excess heat.

TDA2052 60 Watt Amplifier Circuit Diagram

Parts List

1. R1 – Input Impedance
2. R2,R3 – Gain (32dB)
3. R4 – Input Impedance in Mute Mode
4. R5 – Standby Transition Time
5. R8 – Output Frequency Balancing
6. R9,R10 – Discharge Resistors
7. C1 – Input Coupling Capacitor
8. C3 – Feedback Coupling Capacitor
9. C4 – Standby Transition Time
10.  C5 – Output Frequency Balancing
11. C6,C7 – Supply Stabilizing Capacitors
12. C9,C10 – Supply Filter Capacitors

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TDA7053 Amplifier Surround Circuit Diagram

Perhaps the surround amplifier circuit below is an interesting circuit is made. For, making easy just by using the IC and electrolytic capacitor added 1 , we already can hear the strains of music with sound ( Front Left ,Right and surround Right , Left. In addition to listening to music , this amplifier is also very suitable for gamers who want good sound quality.

TDA7053 Amplifier Surround Circuit Diagram

Minimum voltage requred 9 volts and maximum of 15 volts. Power Output of each speaker 10 Watt with 4 ohm impedance.

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Power Amplifier with Electronic Volume Control

This is the simple Power Amplifier with Electronic Volume Control. 1W Power Amplifier with Electronic Volume Control based TDA8551 The TDA8551 chip by Philips is a bridge amplifier with output power of 1 watt at a supply voltage of 5V. In this case, current consumption in the silent mode is only 10mA. The chip is made ​​in 8-pin package and requires no heat sink, it can be used in a variety of small devices. Chip is equipped with thermal protection, has an internal delay circuit connecting the load – so that when you turn, you hear a wheeze other wonderful music transients. This chip also built-in an electronic volume control. 

 Power Amplifier with Electronic Volume Control

Parts list :

Notation on the chart	Nominal
C1	100uF/10V
C2	0.33
C3	0.1
C4	0.1
C5	200uF/10V
R1	2.2 k
DA1	TDA8551

There is a TDA8552 is intended for the use of stereo sound. This will be discussed at Stereo Power Amplifier with electronic control.

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Digital Stereo Power Amplifier IC 2x70 Watt Circuit Diagram

This is the Digital Stereo Power Amplifier IC 2x70 Watt Circuit Diagram. Stereo Power Amplifier is 2x70Watt STA550 chip audio power with BASH concept that can be connected with digital perangkkat. 2x70Watt STA550 Stereo Power Amplifier is an amplifier with BTL system with symmetrical power supply with ground. Power amplifier STA550 uses power output transistor which is on the chip and is set to produce a high efficiency audio power.

 Digital Stereo Power Amplifier IC 2x70 Watt Circuit Diagram

Power output on the STA550 is using the system without copling ac bridge (direct) and zero offset. Strengthening of the STA550 from stereo power amplifier is +12 dB. 2x70Watt STA550 Stereo Power Amplifier is equipped with temperature sensors for protection from overheating and current-limiting protection system for power amplifier. 2x70Watt STA550 Stereo Power Amplifier is equipped with standby and mute controls to regulate silent or active mode power amplifier.

Feature Stereo Power Amplifier 2x70Watt STA550 :

Monochip Bridge Stereo Amplifier dengan Bash® Architecture

55+55w Output Power @ Rl = 4/8 W, Thd = 0.5%

70+70w Output Power @ Rl = 4/8 W, Thd = 10%

High Dynamic Preamplifier Input Stages

External Programmable Feedback Type Compressors

Ac Coupled Input To Class Ab Bridge Output Amplifier

Precision Rectifiers To Drive The Digital Converter

Proportional Over Power Output Current To Limit The Digital Converter

Absolute Power Bridge Output Transistor Power Protection

Absolute Output Current Limit

Integrated Thermal Protection

Power Supply Over Voltage Protection Flexiwatt Power Package With 27 Pin

Bash® Licence Required

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Using LM4651 170 watt Audio power Amplifier Circuit Diagram

 This is the simple Using LM4651 170 watt  Audio power Amplifier Circuit Diagram . Part of this power amplifier driver using the LM4651 IC designed specifically for the purpose of the class AB amplifier driver with short circuit protection feature, containing under voltage, thermal shutdown protection and standby functions. Section 170 Watt power amplifier using LM4651 IC with a MOSFET power amplifier is equipped with temperature sensors that will be used by IC LM4651 as controlnya thermal signal. IC IC LM4651 and LM4652 are designed specifically to each other in pairs to create a class AB power amplifier with protection features are detailed. Detailed series of 170 Watt power amplifier can be seen in thethe following figure .

Using LM4651 170 watt  Audio power Amplifier Circuit Diagram

Power amplifier circuit requires supply voltages +22 V DC symmetrical

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Using TDA7384 - 4 x 22W Car Power Amplifier Circuit Diagram

This is the ic bsed circuit diagram. Using TDA7384  - 4 x 22W Car Power Amplifier Circuit Diagram.If connect to car battery where operating voltage is about 13.2V, then each channel can give 22W what is more than enough for me. This amplifier I probably will use to test audio processor TDA7313 which is stil in development phase.

I didn’t find much information about this chip on the internet so I decided to built it and try on my own. As datasheets of TDA7384 says it is low distortion, low output noise, low external component count. Also has Stand-By function and Mute function. It has several protections like from output short circuit to GND or to Vs, capable to handle very inductive loads, thermal limiter, load dump voltage. TDA7384 is an AB power amplifier cased in flexiwatt25 (eagle library is included in project archive) package wich is designed for high end car radio applications. It allows rail to rail output voltage swing with no need of boot-strap capacitors.

4 x 22W Car Power Amplifier Circuit Diagram

 

 I have followed the schematic in datasheed when building circuit. In datasheet you may also find PCB layout but it is two layered and didn’t fit to may box I’ve chosen. So I have made single sided PCB 50X100mm.

As I put pins on PCB for ST-BY and Mute but I not using them, I connected these pins to VCC like it is shown in PCB view. According to datasheet St-By and Mute turns off amplifier if signal in input is lower than 3.5V. So it is recommended to connect these pins to Vcc if not used.

Maximum power dissipation of chip is 80W(Tcase=70ºC), so it can handle 4 channels working at power of 20W each. But of course chip in a box doesn’t have good ventilation so I’ve put a radiator to ensure that amplifier effectively dissipates heats. I didn’t try to load amplifier to maximum to se if it doesn’t heat up to much. But at normal sound level it stays warm what is normal.

Dont forget to put thermal paste between chip and radiator to ensure lower thermal resistance. And here we go brand new power amplifier ready to go:

Sourced By: www.circuitsproject.com

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TDA7383 35W Car Quad Audio Amplifier Circuit Diagram

This is the TDA7383 35W Car Quad Audio Amplifier Circuit Diagram. The following a 4 x 35 watts channels/quad audio power amplifier circuit based IC TDA7383. The amplifier circuit is designed specifically suitable for car audio system applications. With a fairly large output power per channel, low distortion and low output noise features. Heatsink should be installed on the power IC to avoid excessive heat. There are very simple and easy to build cos only a few additional components outside the IC power.

TDA7383 35W Car Quad Audio Amplifier Circuit Diagram

 
TDA7383 Pinning

IC TDA7383 is a new technology class AB Audio Power Amplifier in Flexiwatt 25 package designed for high end car radio applications. Thanks to the fully complementary PNP/NPN output configuration the TDA7383 allows a rail to rail output voltage swing with no need of bootstrap capacitors. The extremely reduced components count allows very compact sets. The on-board clipping detector simplifies gain compression operations. The fault diagnostics makes it possible to detect mistakes during Car- Radio assembly and wiring in the car.

Absolute Maximum Ratings of IC TDA7383

Operating Supply Voltage                                   : 18 V
DC Supply Voltage                                          : 28 V
Peak Supply Voltage (t = 50ms)                             : 50 V
Output Peak Current Repetitive (Duty Cycle 10% at f = 10Hz): 4.5 A
Output Peak Current Non Repetitive (t = 100µs)             : 5.5 A
Power dissipation, (Tcase = 70°C)                          : 80 W
Junction Temperature                                       : 150 °C
Storage Temperature                                        : – 55 to 150 °C

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Using IC LA4440 19 Watt Bridge Amplifier Circuit Diagram

This is the simple 19 Watt Bridge Amplifier Circuit Diagram. Using IC LA4440 19 Watt Bridge Amplifier Circuit Diagram, using IC LA4440 from Sanyo. It uses very less components.

Using IC LA4440 19 Watt Bridge Amplifier Circuit Diagram

Layout PCB Stereo 19 Watt Bridge Amplifier

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2 Channel Audio Power Amplifier Circuit Diagram

This is the LA 4440 IC based 2 Channel Audio Power Amplifier Circuit Diagram. LA4440 is a two channel audio power amplifier with inbuilt in dual channels enables it for stereo and bridge amplifier applications. In dual mode it gives 6 W per channel and in bridge mode 19 W output.

 It has good ripple rejection of 46dB, small residual noise, built in over voltage and surge voltage protection etc. ideal feature of the IC is its pin-to-pin protection. Here LA4440 is wired in bridge configuration using only one input.

2 Channel Audio Power Amplifier Circuit Diagram

Features of LA4440

1. Built in two channels to use as Mono and Stereo

2. Dual mode 6W x 2 and Bridge mode 19W

3. 46 dB Ripple rejection

4. 18V Max. Power handling and 12V typical

5. Good channel separation and low distortion

6. Built in Audio Muting function and Pin-to-Pin protection

7. Surge protection circuitry

Pin connection of LA4440

Pin

1 NF1

2 Audio In 1

3 Pre Amp Ground

4 Audio Mute

5 DC

6 Audio In 2

7 NF2

8 Gnd

9 BS 2

10 Audio Out 2

11 VCC

12 Audio Out 1

13 BS 1

14 Gnd

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Using TL072 Op-Amp Subwoofer Filter Circuit Diagram

This is the simple Op-Amp Subwoofer Filter Circuit Diagram using TL072. The circuit subwoofer filter allows the addition of subwoofers to an existing full-range system, offering adjustable low-pass filter with the option of momentum and R6 and R8 mono-summary.The subwoofer filter to remove separate preamplifier circuit to drive the low frequency sound a lot. 

At the tone, dial tone and can not be normal to do ... is a fine deep low bass sounds like a drum, or a cinema complex in a low voice if you can listen but to add cabinets and amplifiers. Subwoofer circuit is low-pass frequency of 11-90 Hz switching power supply 12V court if necessary to use +-15V. I changed the capacitor to cut the voice by a red circle mark.

Using TL072 Op-Amp Subwoofer Filter Circuit Diagram

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Using TDA1562Q 54 W Amplifier Circuit Diagram

This is the simple Using TDA1562Q 54 W Amplifier Circuit Diagram. The integrated output amplifier described in this article consists of little more than one integrated circuit. It is intended especially for use in motor vehicles and other battery operated applications. Although it appears simple and hardly worth looking at, the amplifier can produce an appreciable audio power output.

Using TDA1562Q 54 W Amplifier Circuit Diagram

Data

PropertiesHigh power output through Class-H operation

Low power dissipation during reproduction of music signals

Proof against short-circuits

Protection against excessive temperatures

Standby switch

No power-on or power-off clicks

Visible error indication

Measurement results (at Ub=14.4 V)

Supply voltage 8–18 V

Sensitivity 760 mV r.m.s.

Input impedance 70 kΩ

Power output 54 W r.m.s.

into 4 Ω (f=1 kHz; THD+N=1%)

Harmonic distortion (THD+N) at 1 W into 4 Ω: 0.046% (1 kHz)

0.29% (20 kHz)

at 35 W into 4 Ω: 0.12% (1 kHz)

0.7% (20 kHz)

Signal-to-noise ratio (with 1 W into 4 Ω) 88 dBA

Power bandwidth 7.5 Hz – 185 kHz (at 25 W into 4 Ω)

Quiescent current about 135 mA (‘on’)

COMPONENTS LIST

Resistors:

R1 = 1MΩ

R2 = 4kΩ7

R3 = 1kΩ

R4 = 100kΩ

Capacitors:

C1,C2 = 470nF

C3,C4 = 10μF 63V radial

C5,C6,C8 = 4700μF 25V radial

(18mm max. dia., raster 7.5 mm)

C7 = 100nF, raster 5 mm

Semiconductors:

D1 = high-efficiency-LED

IC1 = TDA1562Q (Philips)

Miscellaneous:

S1 = single-pole on/off switch

Four spade connectors, PCB mount

Heatsink for IC1 (Rth<2.5>

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Low cost LM358 op-amp Audio Amplifier Circuit Diagram

This is the Low cost LM358 op-amp Audio Amplifier Circuit Diagram. The differential inputs give the amplifier excellent immunity to common-mode signals which are a common cause of amplifier instability. The dotted ground connection represents the wiring in a typical project illustrating how the ground sensing input can be connected to the ground at the source of the audio instead of at the amplifier where high currents are present.

 Low cost LM358 op-amp Audio Amplifier Circuit Diagram

If the source is a power supply referenced signal then one of the amplifier inputs is connected to the positive supply. For example, an NPN common-emitter preamplifier may be added for very high gain and by connecting the differential inputs across the collector resistor instead of from collector to ground, destabilizing feedback via the power supply is greatly reduced.

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IC LM386 Audio Amplifier Circuit Diagram

This is the simple IC based IC LM386 Audio Amplifier Circuit Diagram. This simple amplifier shows the LM386 in a high-gain configuration (A = 200). For a maximum gain of only 20, leave out the 10 uF connected from pin 1 to pin 8. Maximum gains between 20 and 200 may be realized by adding a selected resistor in series with the same 10 uF capacitor. The 10k potentiometer will give the amplifier a variable gain from zero up to that maximum.

IC LM386 Audio Amplifier Circuit Diagram

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Using IC Single STK4036 II 50 watts Power Amplifier

Using IC Single STK4036 II 50 watts Power Amplifier circuit Diagram. This is a circuit of 50 watts of audio power amplifier IC for single STK4036 II. Use heat sink to prevent overheating of the IC. The amplifier circuit will give a good sound quality are cheap and have low price. It 'easy to do a power amplifier with only a few external components.

50 watts Power Amplifier Circuit Diagram

The amplifier STK4036 II will be in enough eponymous stereo amplifiers, But also in enough activity loudspeakers.

STK4036II Power Amplifier circuit features:

• Compact package for thin-type audio sets
• Member of pin-compatible series with outputs of 20 to 200W
• Easy heatsink design to disperse heat generated in thintype stereo sets
• Constant-current circuit to reduce supply switch-on and switch-off shock noise
• External supply switch-on and switch-off shock noise muting, load short-circuit protection, thermal shutdown and other circuits can be tailor-designed.

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IC Based BA5417 Stereo Power Amplifier Circuit Diagram

This is the simple IC Based BA5417 Stereo Power Amplifier Circuit Diagram. This circuit Setup and working of this stereo power amplifier circuit is somewhat similar to the BA5406 based stereo amplifier circuit published previously. C10 and C11 are DC decoupling capacitors which block any DC level present in the input signals. C2 and C6 couples the amplifiers left and right power outputs to the corresponding loud speakers. C1 and C5 are bootstrap capacitors. 

Bootstrapping is a method in which a portion of the amplifiers is taken and applied to the input. The prime objective of bootstrapping is to improve the input impedance. Networks R1,C3 and R2,C7 are meant for improving the high frequency stability of the circuit. C4 is the power supply filter capacitor. S1 is the standby switch. C8 is a filter capacitor. R3 and R4 sets the gain of the left and right channels of the amplifier in conjunction with the 39K internal feedback resistors.

IC Based BA5417 Stereo Power Amplifier Circuit Diagram

Notes.

• Supply voltage range of BA5417 is from 6 to 15V DC.
• The recommended supply voltage for this circuit is 12V DC.
• The power supply must be well regulated and filtered.
• BA5417 requires a heatsink.
• The circuit can be assembled on a perf board without much degradation in performance

Sourced by: Circuitsproject

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11W per Channel Stereo audio Amplifier capable of delivering Circuit Diagram

This is the simple 11W per Channel Stereo audio Amplifier capable of delivering Circuit Diagram. Stereo Audio Amplifier with LM4752 circuit capable of delivering 11W a channel continuous average output power to 4 load or 7W per channel into 8 using a single 24V supply

 11W per Channel Stereo audio Amplifier capable of delivering Circuit Diagram

The LM4752 is specifically designed for single supply operation and a low external component count. The gain and bias resistors are integrated on chip, resulting in a 11W stereo Amplifier in a compact 7 pin TO220 package. High output power levels at both 20V and 24V supplies and low external component count offer high value for compact stereo and TV applications. A simple mute function CAN be implemented with the addition of a few external components.

 LM4752 Chip Features

• Drives 4Ω and 8Ω loads
• Internal gain resistors (AV = 34 dB)
• Minimum external component requirement
• Single supply operation
• Internal current limiting
• Internal thermal protection
• Compact 7-lead TO-220 package
• Low cost-per-watt
• Wide supply range 9V - 40V

Sourced By:  Circuitsproject

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Using IC TDA 1558 Amplifier Circuit Diagram

This i the Using IC TDA 1558 Amplifier Circuit Diagram. The amplifier circuit, which is used in car audio. This circuit uses IC TDA 1558 from Philips. TDA1558 is a monolithic integrated class B amplifier output power of 17-single in line (SIL) plastic package. The device contains a 4 x 11 W single or 2 x 22 W BTL amplifiers.

Using IC TDA 1558 Amplifier Circuit Diagram

Features:

• High output power
• Low offset voltage at the output (important for BTL)
• Fixed gain
• Good ripple rejection
• Turn off / standby switch
• Load dump protection
• AC and DC short circuit to earth safe and Vice President
• Heat protection
• Reverse polarity safe

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