High quality 100W MOSFET amplifier

Introduction to the Function and Principle of Operational Amplifier Operational amplifier is a widely used linear integrated circuit. There are many types of operational amplifiers. In terms of application, it can not only amplify weak signals, but also be used as an inverting device and a voltage follower. It can p

Power amplifier, referred to as "power amplifier". In many cases, the rated output power of the host is not enough to drive the entire audio system. At this time, a power amplifier must be installed between the host and the playback device to fill the required power gap. The power amplifier plays a pivotal role in "

The power transformer can interfere with the amplifier through magnetic field, electromagnetic induction and circuit, and is the biggest interference source in audio equipment. Therefore, it is necessary to properly handle its working state and application environment to effectively avoid the interference caused by

The circuit is shown in Figure 4-1. The selection and installation requirements of components are the same as those of general full complementary symmetrical power amplifiers. It should be noted that the two transistors should be replaced by high-frequency diodes, or by a junction of high-frequency transistors. During

Amplifying speech is a difficult challenge, one of the most difficult aspects of which is providing enough amplification to ensure that everyone who speaks quietly can be heard, while allowing adequate headroom for those who speak loudly. If the amplification is too high, the clamor or noise can cause clipping of the

Central topics: • Design principles and techniques for high performance audio amplifiers Solution: • Negative feedback setting of power amplifier can bring higher stability and linearity to the system • Amplifier compensation is used to adjust the open loop gain and phase p

The production cost of high-speed piezoelectric actuators has become increasingly cheaper over the past 15 years, so more and more application designs tend to use high-speed piezoelectric actuators. Piezoelectric actuators were originally used in medical devices, including surgical tools and ultrasound examinations in

Properly Providing the Reference Voltage for Instrumentation Amplifiers 　　It is generally assumed that the reference input of an instrumentation amplifier is high impedance because it is an input. Therefore, design engineers usually want to connect a high impedance source, such as a resistor divider, to the reference