Here is a 10 + 10W stereo amplifier made with TDA2009A power amplifier integrated circuit (see figure). Due to the use of application-specific integrated circuits, its production has become very simple and its performance is good. Its main performance characteristics are as follows:
voltage | DC 8-24V / 1-2A | |
Power output | > 10W | 4 Ω load, 24VDC power supply |
> 6W | 4 Ω load, 24VDC power supply | |
> 4W | 4 Ω load, 12VDC power supply | |
S / N | > 75dB | 10W output |
Frequency response | 10Hz — 50kHz | -3dB |
Gain | 36dB | |
Input level | 100mV full power output |
Principles and production points: C1 and C2 are input capacitors, C10 and C11 are output capacitors, C6 and C7 are feedback capacitors, and C4 and C5 are power supply filter capacitors. R1 / R2 or (R3 / R4) controls the amount of feedback. The gain of the amplifier is equal to 1+ (R1 / R2) = 68 or 37dB. The maximum power supply voltage of the device is DC28V. When working, TDA2009A needs to add heat sink, and pay attention to the choice of power cord and speaker connection. The input should be shielded and as short as possible. When welding TDA2009A, pay attention to the short time and fast action, but let it fully integrate with the circuit board to ensure good and reliable contact.
——Source: Top Electronics
Follow WeChat
Download Audiophile APP
Follow the audiophile class
related suggestion
There are many reasons for the failure, and the situation is very complicated. Some are simple failures caused by one reason, and some are complicated failures caused by the interaction of multiple reasons ...
Although there are a large number of active monitor speakers (with built-in amplifier circuit) on the market, but here to remind you that the growth of the recording industry has been accompanied by passive monitoring ...
This article mainly introduces how to calculate the voltage amplification of the amplifier circuit (single-stage and multi-stage). When seeking the voltage amplification of discrete component multi-stage amplifier circuits ...
This article mainly introduces the complete circuit diagram of the electret microphone amplifier circuit (audio amplifier / microphone / microphone amplifier circuit diagram in detail). The working principle of electret microphone ...
The compound triode is to select the triodes of various polarities to connect respectively.
This article mainly introduces the complete circuit diagram of the field effect tube amplifier circuit (the detailed explanation of the five field effect tube amplifier circuit schematics). In this circuit, the battery acts as a DC power supply ...
This article mainly introduces the negative feedback amplifier circuit diagram (five negative feedback amplifier circuit design schematics). If the feedback signal is taken from the output voltage signal, ...
The Op07 chip is a low-noise, non-chopped and stable bipolar op amp integrated circuit. Since OP07 has a very low input offset voltage ...
This article mainly introduces the simplest DC amplifier circuit diagram (the seven simplest DC amplifier circuit design schematics). Ability to amplify DC signals ...
This article has introduced the operational amplifier and the amplifier circuit in detail, including the principle of the operational amplifier, the classic operational amplifier circuit diagram and amplification ...
With the help of Multisim 10's simulation platform, this article uses Multisim simulation to analyze the resistance-capacitance coupled negative feedback amplifier circuit to study ...
The frequency of body surface ECG signals is mainly concentrated in 0.05 ~ 100Hz, the amplitude is 10μV ~ 4mV (typical value is 1mV) ...
When the random interference signal is mixed into the input signal, an analog filter can be used to filter out the useless components of the signal to improve the quality of the signal. But the analog filter ...
This article introduces the analysis of common-emitter, common-collection and common-base amplifier circuits in the DC path. The basic common-emitter amplifier circuit is shown in the figure, it should be encountered frequently in the analog book ...
Compared with Protel, Multisim 10 has a more intuitive human-computer interface. The resistance-capacitance coupling two-stage amplifier circuit is an analog ...
The amplification effect of the triode is: the collector current is controlled by the base current (assuming that the power supply can supply enough current to the collector), and the base ...
This article brings you five kinds of subtractor circuit design solutions.
With the continuous development of science and technology, laser ranging, microwave radar ranging, ultrasonic ranging and infrared ranging have emerged in the field of ranging. ...
Common collector amplifying circuits are often used as input stages and output stages of amplifiers or for impedance matching, and are widely used in practice. This article on co-collection ...
This article mainly introduces the equivalent model of the universal triode! Help you get all kinds of parameter analysis. The main components of the transistor amplifier circuit are pnp type, n ...
The core component of the amplifier circuit is a triode, so it is necessary to have a certain understanding of the triode. There are many types of amplifier circuits composed of transistors, and we often use ...
Amplification is the most basic analog signal processing function. It is realized through an amplifier circuit. Most analog electronic systems use different types of amplifiers ...
The amplifier circuit is also called an amplifier, which is one of the most widely used electronic circuits and the basic unit circuit that constitutes other electronic circuits. The so-called zoom ...
The amplifier circuit is also called an amplifier, which is one of the most widely used electronic circuits and the basic unit circuit that constitutes other electronic circuits. The so-called zoom, ...
The CD4069 chip is a six-inverter commonly used in digital circuits and single-chip systems. Its structure is relatively simple, with a total of six inverters, a total of ...
The double-ended input is also called differential input, and the double-ended input summing circuit is shown in Figure 1. The derivation method of its output voltage expression is in phase with the in-phase input arithmetic circuit ...
Inverting input operation circuit (proportional) The input signal is added to the inverting input terminal to introduce deep voltage and parallel negative feedback integrated op amp works in the linear region ...
Taking the common-emitter amplifier circuit as an example, the composition of the amplifier circuit is introduced. The role of each component in the circuit is introduced. The principle of the amplifier circuit is summarized. Amplifier circuit input ...
The common point of the common-collection amplifier circuit and the common-emitter amplifier circuit is the input signal via the base. The output voltage (via the coupling capacitor) to the load through the collector is common shot ...
The amplifier circuit is also called an amplifier, which is one of the most widely used electronic circuits and the basic unit circuit that constitutes other electronic circuits. The so-called zoom, ...
Common-mode input resistance: This parameter represents the ratio of the input common-mode voltage range to the amount of change in the bias current within the range when the operational amplifier is operating in the linear region. in...
The single-ended output in the differential amplifier circuit is an output to ground, which is an unbalanced output, and the output terminal of the double-ended output can be floated, which can form a balanced output. and also...
The concept of zero drift (zero drift) can be described as: when the input signal of the amplifier circuit is zero (that is, there is no AC input), due to temperature changes, the power supply ...
Analog amplifier circuits mainly include common-emitter, common-collector and common-base amplifiers are single-tube amplifiers, resistance-capacitance coupling, transformer coupling and direct coupling multi-stage amplifier circuits, ...
The AD603 controllable gain amplifier chip design is a high gain, high broadband DC amplifier, which uses a two-stage cascade amplifier circuit to increase the amplification ...
The amplifier circuit refers to a circuit capable of amplifying a weak signal. For example, the key component in a hearing aid is an amplifier. Amplifiers have AC amplifiers and ...
Comparison of three BJT amplifier circuits: common-shot amplifier circuit, both current and voltage can be amplified. Common collector amplifier circuit: only amplify the current, follow the voltage ...
Transistor, the full name should be semiconductor triode, also known as bipolar transistor, crystal triode, is a semiconductor device that controls the current, its role is to weaken ...
In electronic circuits, the object of amplification is the amount of change, and the commonly used test signal is a sine wave. The essence of amplification is under the action of the input signal, through the active element ...
The basic amplifier circuit generally refers to an amplifier circuit composed of a triode and a field effect tube.
The negative feedback circuit is used in the amplifier, the purpose of which is to improve the working performance of the amplifier and improve the output signal quality of the amplifier.
After the introduction of negative feedback, the improvement of the amplification stability of the amplifier circuit is usually measured by the relative change.
Triode, the full name should be semiconductor triode, also called bipolar transistor, crystal triode, is a semiconductor device that controls the current, its role is to weaken ...
When the amplifier circuit amplifies the signal, there are always two electrodes as the input terminal of the signal, and there should also be two electrodes as the output terminal. According to the semiconductor triode ...
Triode, the full name should be semiconductor triode, also called bipolar transistor, crystal triode, is a semiconductor device that controls the current, its role is to weaken ...
The three configurations of the amplifying circuit are divided into common base, common set, and common launch three configurations. Amplifier circuits are usually transistors, field effect transistors, integrated operational amplifiers ...
The same as the transistor amplifier circuit introduced before, the connection between the FET amplifier circuits at all levels must also be connected through a capacitor to form a CR connection ...
The core component of the amplifier circuit is a triode, so a certain understanding of the triode is required. There are many types of amplifier circuits composed of transistors, we often use ...
With the vigorous development of mobile data communication technology, the hardware and technical requirements of various wireless devices are becoming higher and higher, so under the realization of various communication environments ...
The triode is a semiconductor device that controls current. Its function is to amplify a weak signal into an electrical signal with a large amplitude value. It is also used as a contactless switch. turn off...
Bloggers are not "all-round champions" in all technical aspects, so this article is for your reference only. The purpose of the blogger's writing this article is to be able to play an important role ...
Amplification circuit (amplification circuit) is through a device (the core is triode, field effect tube) will be weak ...
The power saving switch introduced this time, in the daytime or when the light is bright, the power saving switch is turned off, the light is not turned on; at night or when the light is dark, the power saving switch is ready ...
Operational amplifier is a familiar word for students studying engineering. As the most common analog device, operational amplifiers are widely used in signal ...
Changes in temperature seriously affect the static operating point. For the previous circuit (basic cascode amplifier circuit), the static operating point is determined by β and ICEO, ...
Abstract: Transistors are widely used in modern circuits. Their main functions are amplification and switching functions. This article focuses on the amplification of transistors ...
When the signal source is a constant voltage source or a voltage source with a small internal resistance, series negative feedback should be introduced, and when the signal source is a constant current source or a voltage source with a large internal resistance, ...
The microphone power amplifier circuit is made based on TDA2822, and a dual-channel audio amplifier integrated circuit is used. Its main features are high efficiency, low power consumption, static work ...
A number of important technical indicators of the amplifier circuit are closely related to the position of the static operating point. If the static operating point is unstable, some of the performance of the amplifier circuit is also ...
The mastery of analog circuits is divided into three levels. The primary level is to memorize these twenty circuits proficiently, and to understand the role of these twenty circuits. As long as it is an electronic hobby ...
The core component of the amplifier circuit is a triode, so a certain understanding of the triode is required. There are many types of amplifier circuits composed of transistors, we often use ...
In recent years, with the construction of modern high-voltage and ultra-high-voltage transmission networks, power systems are developing towards large-capacity, high-voltage, high-current ...
This article mainly introduces the three simplest triode amplifier circuits
The core component of the amplifier circuit is a triode, so a certain understanding of the triode is required. There are many types of amplifier circuits composed of transistors, we often use ...
Generally, the greater the depth of feedback, the better the improvement of circuit performance.
The "unused op amp" we are talking about here does not mean the op amp in the chip storage box or antistatic bag; it refers to the same package ...
Hearing aids are tools, equipment, devices, and instruments that help hearing-impaired people improve their hearing impairment and thus improve their ability to communicate with others.
Because modern compact devices integrate more performance and functions into smaller packages, it becomes more important to manage the heat dissipation in electronic products. even if...
With the continuous development of computer technology, teaching methods will become increasingly rich and diverse. The experiments and functional demonstrations that must be completed in the laboratory ...
The classic four-resistor difference amplifier seems simple, but its performance in the circuit is not good. Starting from the actual production design, this article discusses the discrete resistance, ...
The analog circuit is an electronic circuit that processes analog signals. Analog signals are signals with continuous time and amplitude (continuous means that it can be within a certain value range ...
A current-sense amplifier with a wide common-mode input range. The MAX44284 current-sense amplifier combines high accuracy and a wide input common-mode range. ...
The multivibrator composed of 555 timers is shown in Figure 3. RA, RB and C are external timing components, and the high-level trigg
Led Window Light install outside of the window, to lighten up the window, make a window shape in architechtural lighting design. Which is modern light to make the city beautiful at night.
LED Window Light can be conceived as a tool for defining space and literally creating moods and meaning. It is a tool that uses signs and graffiti, interrupts continuity, emphasizes curves and angles, vectorizes surfaces and highlights volumes. This new concept is also called Graphic Lighting. It is only for specialists and uses only optical assemblies and highly innovative designs that blend into architecture perfectly. The LED Window light signals can be either static or dynamic in terms of both color temperature and RGB tones. And matching indoor and outdoor installations guarantee style continuity with specific high-resistance features and long-lasting reliability.
This new concept novelty energy-saving LED light is born for experienced light designers, it can be wildly used in indoor, outdoor, Hotel, Home, luxurious villa, Luxury apartment, and Commercial buildings/architecture, for Window, Wall, Passage, Scene, stage, Gallery, Parking Lot, Campus decoration.
Photo show of LED Window light:
LED Window Light
Led Window Light,Window Led Spot Light,Architectural Lighting,Modern Lighting
Shenzhen Iseeled Technology Co., Ltd. , https://www.iseeledlight.com