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22 Watt Car Subwoofer Amplifier

Circuit Description
     The stereo signals coming from the line outputs of the car radio amplifier are mixed at the input and, after the Level Control, the signal enters the buffer IC1A and can be phase reversed by means of SW1. This control can be useful to allow the subwoofer to be in phase with the loudspeakers of the existing car radio. Then, a 12dB/octave variable frequency Low Pass filter built around IC1B, Q1 and related components follows, allowing to adjust precisely the low pass frequency from 70 to 150Hz. Q2, R17 and C9 form a simple dc voltage stabilizer for the input and filter circuitry, useful to avoid positive rail interaction from the power amplifier to low level sections.      This unit is intended to be connected to an existing car stereo amplifier, adding the often required extra "punch" to the music by driving a subwoofer. As very low frequencies are omnidirectional, a single amplifier is necessary to drive this dedicated loudspeaker. The power amplifie…

22 Watt Stereo Amplifier circuit diagram.

22 Watt Stereo Amplifier circuit diagram. This circuit can be used for audio home amplifier and car audio amplifiers. It is extremely simple design, inexpensive and very easy to build. Even a newbie hobbyst will easy assemble this circuit. The scheme given here is a car stereo amplifier circuit can be used in That car or other vehicle. The circuit is based TDA1553, which is aClass-Baudioamplifier. As you can see this circuitisverysimple, consisting onlyof theICand thecapacitor6. Here is a circuit diagram of car stereo. This 20w car audio amplifier circuit described hereoffers a20 wattboosterthatwillallow youtorealize thepower amplifierwith which one canincrease the poweroutputfromthe carstereoup to20Wattsmaximum. The inputINis connected to theoutputof thereceiver, Uoutputis connectedto the speakeras shownoncaraudioamplifierscheme. via next.gr


22 W audio amplifier

Datasheet for ha13128: Download

22 W bridge/stereo audio amplifier with clipping detector

Features: Very few external componentsNo Boucherot cellsNo bootstrap capacitorsHigh output powerNo switch on/off noiseVery low standby currentFixed gain (20 dB stereo)Programmable turn-on delayClipping detectorProtections:Output AC-DC short circuit to ground and to supply voltageVery inductive loadsLoudspeaker protectionOverrating chip temperatureLoad dump voltageFortuitous open groundESD
Description:
The TDA7360 is a new technology class AB Audio Power Amplifier in the Multiwatt® package designed for car radio applications. Thanks to the fully complementary PNP/NPN  output configuration the high power performance  of the TDA7360 is obtained without bootstrap  capacitors. A delayed turn-on mute circuit eliminates audible  on/off noise, and a novel short circuit protection system prevents spurious intervention with highly  inductive loads. The device provides a circuit for the detection of  clipping in the output stages. The output, an open  collector, is able to drive systems with autom…

22W BRIDGE / STEREO AUDIO AMPLIFIER WITH CLIPPING DETECTOR TDA7360

General Description:

TDA7360 is a new technology class AB Audio Power Amplifier in the Multiwatt package
designed for car radio applications.
Circuit Diagram

22W BRIDGE-STEREO AMPLIFIER FOR CAR RADIO TDA7350

Features VERY FEW EXTERNAL COMPONENTSNO BOUCHEROT CELLSNO BOOSTRAP CAPACITORSHIGH OUTPUT POWERNO SWITCH ON/OFF NOISEVERY LOW STAND-BY CURRENTFIXED GAIN (30dB STEREO)PROGRAMMABLE TURN-ON DELAYProtections:OUTPUT AC-DC SHORT CIRCUIT TOGROUND AND TO SUPPLY VOLTAGEVERY INDUCTIVE LOADSLOUDSPEAKER PROTECTIONOVERRATING CHIP TEMPERATURELOAD DUMP VOLTAGEFORTUITOUS OPEN GROUNDCircuit Diagram