Posts Tagged ‘audio amplifier’

100W Audio Amplifier Transistor by BDW84 , BDW83

Wednesday, September 17th, 2008

The circuit works from a symmetrical ñ40 VDC power supply and draws a maximum current of 2.6 A. The input circuit of the amplifier is a differential amplifier built around Q4 and Q5 that employ DC feedback thus preventing any DC voltage from appearing across the speaker with the usual. … วงจรแอมป์โอซีแอล 100W คลาส เอบี [...]

Power Amplifier OCL 50W by BD250C , BD249C

Tuesday, September 16th, 2008

This simple audio power amplifier was originally designed for a circuit board workshop, conducted by the OSU IEEE Student Group. At the workshop, 20 participants each constructed this amplifier, by etching and drilling the single sided circuit board, soldering all components, and attaching a pre-built heatsink assembly with the output transistors. … วงจรแอมป์ทรานซิสเตอร์ OCL 50Watt [...]

Power Amplifier 60W by TDA7294

Monday, September 15th, 2008

The TDA7294 amplifier module is a monolithic integrated circuit. It is intended for use as an audio class AB amplifier in hi-fi applications. It has a wide voltage range and output current capability, enabling it to supply the highest power into both 4 ohm and 8n ohm loads. … วงจรแอมป์โอซีแอล ขนาด 60Watt ด้วยไอซี TDA7294 อ่านต่อ