Posts Tagged ‘Power Amplifier’

Sensing Light with a Programmable Gain Amplifier

Photo sensors bridge the gap between light and electronics. Microchip’s Programmable Gain Amplifiers (PGAs) are not well suited for precision applications (such as CT scanners), but they can be effectively used in position photo sensing applications minus the headaches of amplifier stability. When the two, six or eightchannel PGA is used in this system, the other channels can be used for other sensors or an array of photo sensors without an increase in signal conditioning hardware or PICmicro® microcontroller I/O pin consumption.

Read more original source: http://www.microchip.com/stellent/

50 Watt power Amplifier by TDA2052

This is a stronger type. It features mute and stand-by functions, which require some additional discrete devices. The rest is just the common op-ampish and power-ampish stuff. I’ve never built this one, so I’ve got no suggestions concerning practical construction.
source : www.elektropage.com

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OTL Amplifier 60W by LM3900

This is power amplifier OTL circuit,It is old but good amp(classic) I like it.
It is have power output 60W at 8ohm speaker.
I use IC op-amp LM3900 is mian part in this circuit.
The LM3900 function amp audio signal,ad have transistor 2N3055 x3 for boost power sound audio.

The voltage power used 70V at 3A min.

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