Hi-Fi Stereo Headphone Amplifier using LME49600
https://www.electronics-lab.com/hi-fi-stereo-headphone-amplifier-using-lme49600/
This project is the ideal solution for high output, high performance high fidelity stereo head phone amplifier. The project consists of Op-Amp LME498720 and LME49600 as output driver. The LME49600 is able to drive 32Ω headphones to a dissipation of greater than 500mW at 0.00003% THD+N while operating on ±12V power supply voltages. The LME49600 […]
Design of a Korg Nutube Amplifier
https://www.electronics-lab.com/design-korg-nutube-amplifier/
Karlwoodward @ www.rs-online.com/designspark is in the process of designing a “guitar pedal” for amplification and distortion using the Korg Nutube we featured earlier. The Part 1 of a series of articles goes through the basic aspects of tubes and valves, the pros and cons on using a Nutube valve as well as discussing about low gain […]
Teardown of a TDA7375 audio amplifier IC
https://www.electronics-lab.com/teardown-tda7375-audio-amplifier-ic/
A teardown of a TDA7375 audio amplifier IC from Electronupdate: The TDA7375 audio power amplifier. Another example of a long-lived integrated circuit. 1st introduced in 1998… looks like it’s still being made. Teardown of a TDA7375 audio amplifier IC – [Link]
Simple Pressure Sensor Amplifier & Over Pressure Switch
https://www.electronics-lab.com/simple-pressure-sensor-amplifier-pressure-switch/
The pressure sensor amplifier built using LM358 op-amp and MPXM2051GS pressure sensor from NXP semiconductor. The circuit provides 4V output for full scale pressure input 0-7.5PSI. One op-amp is used as amplifier and 2nd op-amp is used as comparator to provide an output at set value that can be used as over pressure switch to […]
Amplifier requires no dc bias
https://www.electronics-lab.com/amplifier-requires-no-dc-bias/
john guy @ edn.com writes: Intrinsically capacitive transducers and other high-impedance signal sources usually require ac coupling and a buffer amplifier to condition the signal for further processing. Buffers take many forms, but most of them compromise signal quality through the use of external resistors that provide a dc path for the input bias current. […]
Redefining a new state-of-the-art in microampere current-sense amplifiers
https://www.electronics-lab.com/redefining-new-state-art-microampere-current-sense-amplifiers/
Silicon Lab’s TS1100 and TS1101 current sense amplifier’s features discussed in this app note. Sensing and controlling supply current flow are a fundamental requirement in most all electronic systems from battery-operated, portable equipment to mobile or fixed-platform power management and dc motor control. High-side current-sense amplifiers (or “CSAs”) are useful in these applications especially where […]
LTC3623 – Switching regulator doubles as Class-D audio amplifier
https://www.electronics-lab.com/ltc3623-switching-regulator-doubles-class-d-audio-amplifier/
Clemens Valens @ elektormagazine.com discuss about LTC3623 switching regulator which can be used as Class-D Audio Amplifier. Sure thing, Elektor has published several designs of adjustable power supplies based on switching regulators, so we know that doing this properly in a reproducible way and without making things overly complex requires some serious head scratching. The […]
How to Build a Class-D Power Amp
https://www.electronics-lab.com/build-class-d-power-amp/
Cezar Chirila @ allaboutcircuits.com shows how to build a Class-D amplifier which has amazing efficiency. What is a Class-D audio power amplifier? The answer could be just a sentence long: It is a switching amplifier. But in order to fully understand how one works, I need to teach you all its nooks and crannies. How to Build […]
Tutorial on High-Power Balanced & Doherty Microwave Amplifiers
https://www.electronics-lab.com/tutorial-high-power-balanced-doherty-microwave-amplifiers/
Tutorial on High-Power Balanced & Doherty Microwave Amplifiers – [Link]
How to use a fully differential amplifier as a level shifter
https://www.electronics-lab.com/use-fully-differential-amplifier-level-shifter/
Loren Siebert @ ti.com discuss about how to interface signals that have a reference voltage that isn’t 0V while preserving the DC information. Many signal paths are direct current (DC)-coupled, and this can lead to challenges when different portions of the signal path require different operating conditions. Many portions of a signal path are ground-referenced, […]