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TDA2007 Amplifier Circuit ,  this is stereo power amplifier with power output 2 x 12Watts . Minimum voltage require 8 volts and maximum voltage require 26 volts , with DC supply voltage. Impedance output is 8 ohms. See schematic diagram below :

FEATURES • Requires very few external components • No switch-on/switch-off clicks • Input mute during switch-on and switch-off • Low offset voltage between output and ground • Hi-fi in accordance with IEC 268 and DIN 45500 • Short-circuit proof and thermal protected • Mute possibility. GENERAL DESCRIPTION The TDA2614 is a power amplifier in a 9-lead single-in-line (SIL9) plastic medium power package. It has been especially designed for mains fed applications, such as TV and radio. Circuit diagram: 6 W hi-fi audio power amplifier TDA2614 Datasheet for TDA2614: Download

The following schematic shows 12 W Bridge Amplifier circuit diagram as an application of the TDA2007A a class AB dual audio power amplifier which is designed for stereo application in music centers, TV receivers and portable radios. According to the datasheet, this TDA2007A has features such high output power, high current capability, AC short circuit protection, and thermal overload. via next.gr 12 W Bridge Amplifier circuit diagram

This is a one watt home stereo amplifier module project using the KA2209 IC from Samsung, which is equivalent to the TDA2822. It operates from 3-12V DC & will work from a battery since the dormant current drain is low. It requires no heat sink for normal use. The input & output are both ground referenced. Maximum output will be obtained with a 12V power supply & 8 ohm speaker, however it is suitable for driving headphones from a supply as low as 3V. The Specifications of the home stereo amplifier : D.C. input : 3 – 12 V at 200 – 500 mA max Idle current : approx. 10 mA Power output : > 1 Watt max. 4-8 ohms, 12V DC Freq. Resp. : approx. 40 Hz to 200 kHz, 8 ohm, G=10 THD : < 1 % @ 750 mW, 4-8 ohm, 12V Gain : approx. x10 (20 dB) OR x100 (40dB) S/N ratio : > 80 dB, G = 20 dB Sensitivity : < 300 mV, G = 20 dB Input Impedance : approx. 10 k ohm Description   The gain is adjustable from ten to 100, i.e. twenty to 40 dB. Start with feedback resistors R1 and R3 of 1k...

TDA2007 Amplifier Circuit ,  this is stereo power amplifier with power output 2 x 12Watts . Minimum voltage require 8 volts and maximum voltage require 26 volts , with DC supply voltage. Impedance output is 8 ohms. See schematic diagram below :