Ground Isolation Audio Amplifier for Automotive Applications
https://www.electronics-lab.com/project/ground-isolation-audio-amplifier-for-automotive-applications/
This Ground Isolation Amplifier is developed for car and automotive applications. The board efficiently eliminates problems caused by wiring resistance and removes noise generated by other electrical devices used in automobile environment. In a car or automotive the audio system is grounded to the car body. For this reason, electrical noise generated by the car […]
Precision Thermocouple Amplifiers with Cold Junction Compensation – Temperature Range −25°C to +400°C
https://www.electronics-lab.com/project/precision-thermocouple-amplifiers-with-cold-junction-compensation-temperature-range-%e2%88%9225c-to-400c/
This Thermocouple Amplifier project provides a simple, low-cost solution for measuring thermocouple temperature. This board simplifies many of the difficulties of measuring thermocouples output. An integrated temperature sensor performs cold junction compensation. A fixed-gain instrumentation amplifier amplifies the small thermocouple voltage to provide a 5 mV/°C output. The high common-mode rejection of the amplifier blocks […]
Dual 2A Power Amplifier Module for TEC
https://www.electronics-lab.com/project/dual-2a-power-amplifier-module-for-tec/
This Dual 2A Power Amplifier module is a low-cost operational amplifier designed for driving a wide variety of loads while operating on low-voltage supplies. The dual amplifier can drive high output loads with a current of up to 2A. This Dual 2A Power Amplifier has been designed as a TEC (thermoelectric cooler) driver but it […]
Mono 2W – Switch-Mode (Class D) Audio Power Amplifier
https://www.electronics-lab.com/project/mono-2w-switch-mode-class-d-audio-power-amplifier/
This is a compact size, mono, switch-mode (Class-D) audio power amplifier intended for multimedia and general-purpose high-power applications. It has greater than 87% efficiency and is capable of delivering 2W maximum continuous power to a 4Ω load. The project is designed to be driven by the line-out or headphone jack of a CD/MP3 player or […]
4 x 45W Quad Bridge Audio Amplifier
https://www.electronics-lab.com/project/4-x-45w-quad-bridge-audio-amplifier/
This is an AB class audio amplifier based on the TDA7388 chip and it is a great choice for car audio applications. This compact board has 4 channels each 26W with 4 ohms speaker. Then IC consists of a fully complementary PNP/NPN configuration and the TDA7388 allows a rail-to-rail output voltage swing with no need […]
Dual 105mW Headphone Amplifier with Digital Volume Control and Shutdown Mode
https://www.electronics-lab.com/project/dual-105mw-headphone-amplifier-with-digital-volume-control-and-shutdown-mode/
This is a low noise Headphone Amplifier capable of delivering 105mW per channel of continuous average power into a 16Ω load with 0.1% (THD+N) from a 5V power supply. The project is based on the LM4811 chip from the boomer series. The board provides high-quality output power with a minimal number of external components. It […]
2.5W Stereo Audio Amplifier using LM4752
https://www.electronics-lab.com/project/2-5w-stereo-audio-amplifier-using-lm4752/
The Stereo Audio Amplifier project shown here is capable of delivering 2.5W per channel of continuous average output power to 4Ω loads using a single 12V supply at 10% THD+N. The project is built using the LM4752 chip. This chip is specifically designed for single supply operations and low external components count. The gain and […]
Current-Sense Amplifier with Dual Over Current Level Monitor & Alert Output
https://www.electronics-lab.com/project/current-sense-amplifier-with-dual-over-current-level-monitor-alert-output/
The project presented here is a high common-mode current sense amplifier with two high-speed comparators to detect out-of-range current conditions. The comparators are configured to detect and respond to dual over current conditions. These devices feature an adjustable limit threshold range for each comparator set using an external limit-setting resistor. Limit 1 Resistor is R10 […]
SPI Programmable-Gain Amplifier with Input VOS Trim and Output OPAMP
https://www.electronics-lab.com/project/spi-programmable-gain-amplifier-with-input-vos-trim-and-output-opamp/
The project presented here is an SPI programable Gain Amplifier using MAX9939. The MAX9939 is a general-purpose, differential-input programmable-gain amplifier (PGA) that is ideal for conditioning a variety of wide dynamic range signals such as those found in motor current-sense, medical instrumentation, and sonar data acquisition applications. It features SPI-programmable differential gains from 0.2V/V to […]
Dual 40W Audio Power Amplifier with Mute
https://www.electronics-lab.com/project/dual-40w-audio-power-amplifier-with-mute/
The stereo audio amplifier project shown here is capable of delivering typically 40W per channel continuous average output power into an 8Ω load with less than 0.1% (THD+N). The project is built using an LM4766 chip from Texas Instruments, The performance of the LM4766, utilizing its Self-Peak Instantaneous Temperature (°Ke) (Spike) Protection Circuitry, places it […]