Wireless Ir Headphone Receiver Circuit

Using this low cost project, one can reproduce audio from a TV without disturbing anyone. It does not use any wire between the TV and headphones. Instead of a pair of wires, it uses invisible infrared light to transmit audio...

8 Watts Audio Amplifier (TDA2003)

Nice small audio amplifier which use only few parts to give good quality sound. This amp can be used as a simple booster, the heart of a more complicated amplifier or used as a guitar amp. Although not perfect, this...

Infrared receiver by LM1458-CD40103

This simple project allows for circuits with special features to be programmed to operate when an input pulse signal is received. This project involves the design of a programmable circuit that responds to an input pulse signal. The primary function of...

IR Remote Control Transmitter ATtiny28

Use of IR (infrared) light as a method for wireless communication has become popular for remote control applications. There are a number of different standards for such communication. In this application note, the widely used RC5 coding scheme from Philips...

Infrared Transmitter-Receiver with 555

The infrared transmitter and receiver circuit depicted in the schematic diagram can function as a remote control system. The transmitter operates as an oscillator circuit, with the frequency adjustable through the R1 potentiometer (or trimmer pot). This oscillation ensures that...

TDA1013B - 4W Audio Amplifier Circuit

The following is a circuit for a 4-watt audio amplifier. The amplifier utilizes an integrated audio amplifier chip, TDA1013B, which is capable of delivering an audio power output of up to 4W at an 8-ohm load. Its wide supply voltage...

BH-SK-1 with the production of non-contact infrared light switch

The non-contact infrared lamp switch circuit produced by BH-SK-I, as depicted in Figure 3-42, primarily consists of voice integrated circuits, an infrared light-emitting diode (LED), and a receiving tube. It includes a triac circuit and a power circuit. When the...

LM4610 Dual Dc Operated Tone/volume/balance Circuit With National 3-d Sound - National Semiconductor

The LM4844 is an integrated audio subsystem designed for stereo cell phone applications. Operating on a 3.3V supply, it combines a stereo speaker amplifier delivering 495mW per channel into an 8Ω load and a stereo OCL headphone amplifier delivering 33mW...

100w audio amplifier

This amplifier features high fidelity (Hi-Fi), high sensitivity, low power consumption, and low distortion, making it an excellent choice for high fidelity sound systems. The process of creating a printed circuit board (PCB) can be accomplished in a few straightforward...