Chip TDA1566 is a flat two-bridge amplifier HSOP24, designed for car audio devices. The power amplifier on the TDA1566 chip has a number of protections, advanced diagnostics and the ability to configure and diagnose via the I2C bus. The amplifier works with speakers 4 om i 2 ohm, (a)… Continue Reading
The presented balanced voltage source can power audio amplifiers from 2 watts 310 W. Usually, amplifiers over several tens of watts require a power supply, providing two symmetrical voltages. When designing a power supply for audio amplifiers, special attention must be paid to… Continue Reading
The article explains, how by finalizing the circuit, you can significantly improve the characteristics of the popular UMZCH. Amplifier Flavio Delepiano [1] sounds very good, especially at low frequencies, Fig.1. Similar amplifiers with current feedback (TOS) were popular in the early 1960s, However, interest… Continue Reading
The basis of this device is the integrated circuit A6966 manufactured by UTC (Unisonic), supplied in a convenient SIP9 housing. The electrical diagram of the audio signal level indicator is shown in Fig. 1, this is a typical application of this microcircuit, recommended by the manufacturer in the reference to the catalog. An amplifier is installed at the input of the U1 microcircuit… Continue Reading
The article describes a simple test bench for subjective assessment of the quality of the UMZCH. When designing and repairing audio amplifiers, after measuring all characteristics, the question arises about the subjective assessment of the sound quality. For this, listening to amplifiers is carried out, usually, at maximum volume.… Continue Reading