Simple Pressure Sensor Amplifier & Over Pressure Switch
Sensor

Simple Pressure Sensor Amplifier & Over 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...

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Amplifier requires no dc bias
Miscellaneous

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...

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Redefining a new state-of-the-art in microampere current-sense amplifiers
Test/Measurements

Redefining a new state-of-the-art in 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...

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LTC3623 – Switching regulator doubles as Class-D audio amplifier
Audio

LTC3623 – Switching regulator doubles as 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...

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How to Build a Class-D Power Amp
Audio

How to Build a 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...

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Tutorial on High-Power Balanced & Doherty Microwave Amplifiers
RF

Tutorial on High-Power Balanced & Doherty Microwave Amplifiers

Tutorial on High-Power Balanced & Doherty Microwave Amplifiers -...

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4.976
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How to use a fully differential amplifier as a level shifter
Interface

How to use a fully differential amplifier as a 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...

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3W Stereo Audio Amplifier using TDA7266D
Audio

3W Stereo Audio Amplifier using TDA7266D

Tiny stereo audio amplifier board has been designed around SMD TDA7266D IC from ST. The TDA7266D is a dual bridge amplifier specially designed for Portable Audio, LCD TV/Monitor, PC Motherboard, and TV applications. This circuit provides high quality audio output of 3W approx. on each...

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