图1是本功放的申路图,功放部分元器件连晶体管在内仅20个左右,乍下看象一个原理简图,但确确实实是一个可付诸实用的功放,而且它能以较低的谐波失真向8Ω(4Ω)负载提供≥50W(120W)的输出功率。它采用典型的OCL电路,但制作时根据实践情况对设计作了必要的改进。 输入级BG1—2按惯例采用差分放大级,但与一般常见...
A simple transistor amplifier circuitSCHRAEDER,DIPL.-ING.ALFONS
My daughter (Ai) built this circuit by herself; we have been continuously using it for over 8 months, and it still works well. when there is heavy rain and the power goes out. This circuit starts running, and the LED will light up immediately. The battery is also still fine. The more...
In the modern times, one can find a lot of integrated circuit power amplifiers supplying outputs of 1 to 3 watts although the majority of them demand cautious layout of the circuit so that you can avoid instability (an unstable amplifier might vibrate and become destroyed consequently). Furtherm...
This is a 4 transistor audio amplifier circuit. Which is a 4-transistors complementary push-pull amplifier, that shows the basics of audio amplifier design. This circuit saving on battery current, which is quite low with middle volume, rising to 25 -30mA as a volume is increased. ...
The following circuit is simple. Due to its short output to input, the output will follow the input. Besides that, I would like to understand the op-amp behavior, which is confusing me. As I understand, the op-amp output will act as negative feedback till the input rises to 2.5V...
A simple 50 watt amplifier circuit is I have explained below, I have explained how to build it at home using this versatile single amplifier chip LM3876T
A section providing a pulse on CSR8635's PWER_E pin which wakes it up after the circuit has received power. The power section with anLT1308DC/DC converter which boost the battery voltage to 5V at max 1A. The power section is disabled when CSR8635 goes to shutdown on low battery (< ...
The FM transmitter circuit is shown below which works with 5V DC. This circuit can be built with a silicon amplifier like ICUPC1651. The power gain of this circuit is a wide range like 19dB whereas the frequency response is 1200MHz. In this circuit, the audio signals can be received usi...
This OCL amplifier circuit is amid-range power amplifiercapable of delivering a good 150 watts of power due to its symmetrical structure, wide frequency response, simple layout and so on. The sound quality will be quite satisfactory, and comparable to other equivalenthigh-fidelity amplifiersnormally...