Schematic Diagram: stereo

Showing posts with label stereo. Show all posts

Sunday, November 16, 2014

BTL Stereo Amplifier TDA7052 3

This is BTL stereo power amplifier with basic amplifier on IC TDA7052 / TDA7053

Thursday, November 6, 2014

10W Stereo Audio Amplifier Using TDA2009A

This is a schematic of a 10W stereo audio amplifier using TDA2009A amplifier IC. TDA2009A is a good IC provides quality sound. It has built in features like output current protection and thermal protection etc. The circuit can be operate between 8 to 24V DC with 1 to 2 amp here.

10W Stereo Audio Amplifier Circuit Diagram :

If you want to operate this 10 watt amplifier circuit with watt amplifier circuit with mains supply then use a filtered and stable power supply to reduce mains hum. 10 watt out put power can be obtained by providing 20V 1.5A to the circuit. Use good and thick heatsink with the IC.

Wednesday, November 5, 2014

Stereo Preamplifier With Bass Boost

This preamplifier was designed to cope with CD players, tuners, tape recorders etc., providing an ac voltage gain of 4, in order to drive less sensitive power amplifiers. As modern Hi-Fi home equipment is frequently fitted with small loudspeaker cabinets, the bass frequency range is rather sacrificed. This circuit features also a bass-boost, in order to overcome this problem. You can use a variable resistor to set the bass-boost from 0 to a maximum of +16dB @ 30Hz. If a fixed, maximum boost value is needed, the variable resistor can be omitted and substituted by a switch.

Stereo Preamplifier With Bass Boost Circuit diagram:

Parts:
P1 = 10K
P2 = 100K
R1 = 100K
R2 = 100K
R3 = 15K
R4 = 10K
R5 = 22K
R6 = 15K
R7 = 1K
R8 = 470R
C1 = 2.2uF-25v
C2 = 2.2uF-25v
C3 = 470uF-35v
C4 = 1uF-35V
C5 = 2.2uF-25v
C6 = 47nF-63v
C7 = 22uF-25v
IC1 = TL072, Opamp
SW1 = DPST Switch
Notes:

Schematic shows left channel only, but R1, R2, R3 and C1, C2, C3 are common to both channels.
For stereo operation P1, P2 (or SW1), R4, R5, R6, R7, R8 and C4, C5, C6, C7 must be doubled.
Numbers in parentheses show IC1 right channel pin connections.
A log type for P2 ensures a more linear regulation of bass-boost.
Needing a simple boost-in boost-out operation, P2 must be omitted and SW1 added as shown in the diagram.
For stereo operation SW1 must be a DPST type.
Please note that, using SW1, the boost is on when the switch is open, and off when the switch is closed.

Tuesday, October 28, 2014

Circuit diagram BA1404 based Stereo transmitter

Using BA1404 can be designed a very simple and useful stereo fm stereo modulator electronic project . This BA1404 fm stereo modulator device works in FM broadcast band ( 75- 108MHz) and require few external common components .
The BA1404 fm stereo modulator Ic contains all parts needed to design an simple high efficiency stereo transmitter circuit , it contains a stereo modulator that creates stereo composites signals ,an FM modulator that creates FM signals and a RF amplifier .

The fm stereo transmitter develops composite signals made up of a main(L+R) signal and sub(L-R) signal and a pilot (19KHz) signal using a 38KHz crystal oscillators.
The RF amplifier transmits the stereo encoded signals and is also a buffer for FM modulator .
For this FM stereo transmitter circuit you’ll need a DC power supply that can provide an output voltage between 1.5 an 3 volts . This fm stereo transmitter circuit project can be used for FM stereo transmitters or wireless microphone circuits .
The L1 coil must have 3 turns of 0.5mm wire on a 5 mm core .

Antenna used in this transmitter can be an common telescopic antenna or a 60-80 mm long Cu wire .

Thursday, October 23, 2014

200 Watt Stereo Car Amplifier

IC TA8210AH By using this you can apply a series of audio power amplifier is the car audio system. In general, all the speakers in the car using a subwoofer speaker, and woofer. Because the car is not big room so the sound is being required is not too high.

Audio amplifier circuit can work at a minimum voltage 12-volt DC, if supplied under voltage 12-volt amplifier work will be less than the maximum. This amplifier output power up to 200W or 2 x 100W stereo with 8 ohm impedance.

Part List :

Resistor

R1 =1K

R2 =50K trim

R3 =1K

R4 =50K trim

R5 =680R

R6 =680R

R7 =150K

R8 =2R2

R9 =2R2

R10=2R2

R11=2R2

Capacitor

C1 =1uF

C2 =1uF

C3 =47uF

C4 =47uF

C5 =100n/400V

C6 =220uF

C7 =220uF

C8 =100n/400V

C9 =100n/400V

C10=100n/400V

Intregated Circuit

IC1=TA8210AH

Connector

X2-3=in R

X2-2=gnd

X2-1=in L

X1-1,X1-2=Out R

X1-3,X1-4=Out L

Tuesday, September 16, 2014

53 dB Stereo Preamplifier for Tape or Phonographs

With the schema shown in the following schematic diagram, both channels of this stereo preamp is constructed using RCA CA3052 quad AC amplifier. this pre-amplifier schema is featured with tone control (bass – treble). Make a similar schema to complete the other channel, since the schema for left and right channel are similar. To be high-fidelity, total harmonic distortion should be kept minimum, this schema gives less than 0.3% distortion level at at 1-kHz testing signal with 1-V amplitude.

Gain or amplification at 1 kHz is 47 dB, and the tone control will curve the response with 11.5-dB boost at 100 Hz and 10 kHz at maximum bass and treble boost. For minimum bass and treble knob position, the attenuation will be 10dB at 100 Hz and 9dB at 10kHz. This schema is operated by a single ended supply for wider range environment. Inputs can be from tape recorders pickup or magnetic-cartridge phonographs.

53 dB Stereo Preamplifier for Tape Circuit Diagram

Monday, September 8, 2014

Mobile Automotive Stereo Player

Mobile Automotive Stereo Player Circuit Diagram. Using a mobile phone while driving is dangerous. It is also against the law. However, you can use your mobile phone as a powerful music player with the help of a stereo power amplifier. This does away with the need of a sophisticated in-dash car music system. Most mobile phones have a music player that offers a number of features including preset/manual sound equalisers. They have standard 3.5mm stereo sockets that allow music to be played through standard stereo headphones/sound amplifiers. Nokia 2700 classic is an example.

Circuit diagram :

Mobile Car Stereo Player Circuit Diagram

A car audio amplifier with 3.5mm socket can be designed and simply connected to the mobile phone output via a shielded cable with suitable connectors/jacks (readymade 3.5mm male-to-male connector cable is a good alternative). Fig. 1 shows the schema of car stereo player. It is built around popular single-chip audio power amplifier TDA1554Q (IC1). The TDA1554Q is an integrated class-B power amplifier in a 17-lead single-in-line (SIL) plastic power package.

IC TDA1554Q contains four 11W identical amplifiers with differential input stages (two inverting and two non-inverting) and can be used for single-ended or bridge applications. The gain of each amplifier is fixed at 20 dB. Here it is configured as two 22W stereo bridge amplifiers. The amplifier is powered from the 12V car battery through RCA socket J2. Diode D1 protects against wrong-polarity connection. LED1 indicates the power status.

Stereo Jack :

(a) 3.5mm stereo socket and (b) 3.5mm Stereo Jack

Connect stereo sound signal from the 3.5mm headset socket of the mobile phone to audio input socket J1. When you play the music from your mobile, IC1 amplifies the input. The output of IC1 is fed to speakers LS1 and LS2 fitted at a suitable place in your car. Electrolytic capacitor C5 connected between pin 4 of IC1 and GND improves the supply-voltage ripple rejection. Components R2 and C4 connected at mute/standby pin (pin 14) of IC1 eliminate the switch on/off plop. The schema is quite compact. A good-quality heat-sink assembly is crucial for IC1. Fig. 2 shows the stereo socket and stereo jack.

Proposed enclosure

Assemble the schema on a general-purpose PCB and enclose in a suitable cabinet. Small dimensions of the power amplifier make it suitable for being enclosed in a plastic (ABS) case with vent holes. Signal input socket, speaker output terminals, on/off switch, indicator, fuse holder and power supply socket are best located on the front panel of the enclosure as shown in Fig. 3.

Author : T.K. Hareendran - Copyright : EFY

Sunday, September 7, 2014

Stereo balance meter

Description

Play any stereo disc or tape and then set the amplifier to mono. Adjust left and right channel balance until meter Ml indicates zero; then the left and right output level are identical.

Circuit Diagram

Stereo balance meter

2 X 200W STEREO CLASS T DIGITAL AUDIO AMPLIFIER TDA2075A

GENERAL DESCRIPTION

The TDA2075A is a two-channel, amplifier driver, that uses Tripath’s proprietary Digital Power Processing (DPPTM) technology. The TDA2075A offers higher integration over previous Tripath amplifiers driver chipsets while providing exceptional audio performance for real world applications. Class-T amplifiers offer both the audio fidelity of Class-AB and the power efficiency of Class-D amplifiers. The TDA2075A is typically configured as a split-supply, single-ended, stereo amplifier. The TDA2075A can also be configured single-supply, single-ended, stereo amplifier, via external component choice. For applications that require bridged output drive, please refer to the TDA1400.

Applications

Powered DVD Players
Mini-Compo Systems
Audio/Video Amplifiers & Receivers
Multimedia Speakers

Benefits

Reduced system cost with smaller/less expensive power supply and heat sink
Signal fidelity equal to high quality Class-AB amplifiers
High dynamic range compatible with digital media such as CD and DVD

Features

Class-T architecture with proprietary DPP
“Audiophile” Sound Quality
Full Audio Bandwidth, 20Hz to 20kHz
High Efficiency
Supports wide range of output power levels and output loads by changing supply voltage and external Mosfets.
Compatible with unregulated power supplies
Output over-current protection
Over- and under-voltage protection
Over-temperature protection
48-Pin LQFP Package

Circuit Diagram:

2x200W Power Amplifier circuit TDA2075A

Build a 3000W Stereo Power Amplifier Wiring diagram Schematic

How to Build a 3000W Stereo Power Amplifier Circuit Diagram? Lets start first we define 3000wstereo power amplifier schema diagram this schema has a power output of up to 1500W RMS power amplifier schema is often used to power sound systems spelunker for outdor. In the final image can be seen a series of power amplifiers using 10 sets of power transistors for the ending.

This power amplifier schema using a transistor amplifier from the front, signal splitter, driver and power amplifier. Current consumption required is quite large power amplifier that is 15-20 A 1500W power amplifier diagram for this. Supply voltage needed by the power of this amplifier is the optimal working order symmetrical 130VDC (130VDC-130VDC ground). 1500W amplifier schema below is a picture series of mono, stereo if you want to make it necessary to make two copies of the schema. For more details can be viewed directly image the following 1500W power amplifier schema.

The series of High Power Amplifier 1500W With Transistor

In the above series of power amplifier 1500W is equipped to control a DC Offset function to set the power amplifier is turned on at the moment and with no input signal then the output should be 0VDC. Then also equipped with a flow regulator to the power amplifier bias. Final part of this power amplifier requires adequate cooling to absorb the heat generated. Power amplifier is not equipped with a speaker protector, therefore it is necessary diapsang protector on the speaker output so that when the power amplifier is not the case turned on the beat to the speaker that can damage the speaker.

Friday, September 5, 2014

3 Watt stereo amplifier circuit

3 Watt stereo amplifier circuit using MAX 7910 IC. The MAX9710 a stereo audio power amplifier IC capable of delivering 3Watts of out put to 4 Ohm loads. MAX9710 can be operated from a single 4.5V to 5.5V power supply , makes it ideal for hand held applications.The IC for 3 Watt stereo amplifiercircuit also features thermal overload protection. This 3 Watt stereo amplifier circuit is suitable for small power audio devices such as radio sets and portable CD players. 5 V DC power supply is used for powering the 3 Watt stereo amplifier circuit. 6V battery with an IN 4007 diode series to the positive terminal of it can also be used instead of 5 V DC supply. The 3 Watt stereo amplifier circuit will get a supply voltage approximately 5 V after 0.7 V voltage drop across diode.

Sunday, August 24, 2014

10 10W STEREO AMPLIFIER FOR CAR RADIO

Circuit diagram for 10 + 10W STEREO AMPLIFIER FOR CAR RADIO

Wednesday, August 20, 2014

24 W BTL or 2 x 12 W stereo car radio power amplifier

GENERAL DESCRIPTION

The TDA1510AQ is a class-B integrated output amplifier encapsulated in a 13-lead single in-line (SlL) plastic power package. Developed primarily for car radio application, the device can also be used to drive low impedance loads (down to 1,6 Ω). With a supply voltage (VP) of 14,4 V, an output power of 24 W can be delivered into a 4 Ω Bridge Tied Load (BTL), or when used as a stereo amplifier, 2 × 12 W into 2 Ω or 2 × 7 W into 4 Ω.

Features

Flexibility − stereo as well as mono BTL
Low offset voltage at the output (important for BTL)
Load dump protection
A.C. short-circuit-safe to ground
Low number, small sized external components
Internal limiting of bandwidth for high frequencies
High output power
Large useable gain variation
Good ripple rejection
Thermal protection
Low stand-by current possibility
High reliability.

Circuit diagram:

BTL circuit car radio power amplifier

Stereo Circuit car radio power amplifier

Datasheet for TDA1510: Download

Sunday, August 17, 2014

200 Watt Stereo Car Amplifier

Part List :

Tuesday, August 12, 2014

22 Watt Stereo Audio Amplifier

With one single IC, you can build stereo audio amplifier. The schema is simple, easy made and low in cost. Please take a note that you need headsink on the IC to prevent overheat.

Component List:

R1
C1,C2
C3
C4
C5
C6
U1
MISC

39K 1/4 Watt Resistor
10uf 25V Electrolytic Capacitor
100uf 25V Electrolytic Capacitor
47uf 25V Electrolytic Capacitor
0.1uf 25V Ceramic Capacitor
2200uf 25V Electrolytic Capacitor
TDA1554 Two Channel Audio Amp Chip
Heatsink For U1, Binding Posts (For Output), RCA Jacks (For Input)