36 Watt Audio Power Amplifier based on TDA1562Q

36 watt power amplifier
The amplifier based on the class H from Philips audio amplifier IC, it can deliver 36W RMS and 70W power music, all from the supply voltage of 13.8V.  This amplifier can provide 36W RMS continuous into 4 ohm load when using a 13.8Vsupply.

However, it is able to deliver 70W output power signal (music) in the dynamic condition. As we can see from the drawings and  schematic diagrams, this powerful amplifier uses only few part.

36 watt power amp based TDA1562qAs we can see from the schematic drawings and diagrams, this powerful amplifier uses only few part. It is built on a PCB size 104mm x 39mm, but even though its size may be simple, but not with his ability. This amplifier also has excellent noise and distortion. An important components of the circuit is an integrated circuit TDA1562Q “monolithic integrated Bridge Tied Load (BTL) class H power amplifier with high efficiency.” Form in17-pin package “DIL-bent-SIL” plastic and not only designed for use in car audio amplifier and portable PA but it works for network applications, for example, mini / midi audio components and for TV sound.

36 w PA component layout


36 w PA PCB layout

Technical feature:
Output power 36W RMS: ———————- 4R
70W music power: —————————– 4R
Frequency response: 28Hz to low ———–1dB and 55 kHz
130mV input sensitivity: ——————— RMS (36W for 4-ohm)
Harmonic distortion: ————————– typically 0.2% (see charts)
SNR 95dB unweighted: ———————— (22Hz to 22kHz)



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