DIY Audio Power Amplifier(5)

Today, let's try to make a microphone by using a condenser microphone preamplifier circuit. Due to its high sound sensitivity, convenient use, small size and cheap price. For example, it can be directly connected to your power amplifier through the AUX channel. Then you can hear your voice clearly from the spea

This article mainly shares: Class D amplifiers, advantages and disadvantages of Class D amplifiers, Class D amplifier principles, Class D amplifier circuit diagrams, Class D amplifier design, and Class D amplifier testing. 1. Class D Amplifier Tutorial What is a Class D audio amplifier? The simplest

If the gain or noise bandwidth of a low-noise amplifier is known or estimated , the other specifications can be measured using only a few resistors and an AC voltmeter. This example uses the Johnson equation, which describes the amount of noise generated by a resistor. To find the missing parameter, measure the amplif

　　Using the Class A amplifier introduced in this article, you can get better high-fidelity effects. Class A headphone amplifier (TL072OP with BC142, 143) 　　In daily life, when other family members are watching TV or sleeping and cannot be disturbed, you cannot enjoy the beautiful music. In this case, you need to con

       Some current sensing amplifiers are often subjected to high voltage shocks. For example, the current sensing amplifier that monitors the battery discharge current in the car must be able to withstand the high voltage load dump pulse. This high voltage pulse is the inductive spike voltage generated when the load

TDA2030 is an audio amplifier circuit produced by Telefunken, which adopts a V-shaped 5-pin single-in-line plastic package structure. As shown in Figure 1, the pins can be divided into H-type and V-type according to the shape of the pins. This integrated circuit is widely used in car stereo recorders and medium-power

  Digi-Key Electronics, a global electronic component distributor,   has announced a global distribution partnership with Anderson Power Products (APP) and expanded its product portfolio. This new partnership will help Digi-Key provide APP's high-quality interconnect solutions to customers around the world 24 hours a

As one of the quality indicators for electronic and electrical products, electromagnetic compatibility (EMC) testing is directly related to the reliability and safety of the product itself, and it may also affect other parts of the same system. Bad electromagnetic compatibility will directly cause the system to fail t