Houston, Texas—Mimix Broadband, Inc. announced the XP1003 GaAs monolithic microwave integrated circuit (MMIC) power amplifier optimized for linear operation. This two-stage power amplifier is well ...

Here this circuit is based on the principle of audio amplification using operational amplifier and pulse width modulation using 555 Timer. In this article we are describing the principle, design and ...

June 3, 2009 We’ve been living in a digital age for a while now and many of us access all our music from digital formats like CD and MP3. But has anyone managed to perfect a purely digital amplifier?

Pulse Width Modulation (PWM) or Pulse Duration Modulation (PDM) is a technique of converting analog signals into rectangular waveforms. The width of the waveform varies in proportion with the ...