Codyhtml Posted October 29, 2004 Report Share Posted October 29, 2004 Hi I Need Help Fast I Have a old computer power suply and i want to get a 24 V Corrent from it But i can't affored a transformer ??? :'( Quote Link to comment Share on other sites More sharing options...
Guest Kasamiko Posted October 29, 2004 Report Share Posted October 29, 2004 Hi you can try this one..Unusual application of TDA2004 Power Amp. IC"There are often occasions when a higher direct voltage is required than an available battery can provide. In many such cases, the circuit described can offer the solution. It can raise 6 V to 12 V or 12 V to 24 V."rhonn ;) ;) Quote Link to comment Share on other sites More sharing options...
Guest Yevgenip Posted November 28, 2004 Report Share Posted November 28, 2004 Be sure to remember, even though you raise the voltage, you lower the amps - don't try to put something heavy on the output. ;) Quote Link to comment Share on other sites More sharing options...
Kevin Weddle Posted December 2, 2004 Report Share Posted December 2, 2004 Very interesting use of the opamps. This is a square wave oscillator I believe. It also looks like you have clamped a voltage. The diodes are shottkey not zener. If I am not mistaken the oscillation ocurrs at the mains frequency. That is the frequency being amplified. Quote Link to comment Share on other sites More sharing options...
ante Posted December 2, 2004 Report Share Posted December 2, 2004 Kevin, this is an audio amplifier IC http://www.tde.lth.se/ugradcourses/elektronik/pdf/2004.pdf not an op-amp. The diodes are Schottky diodes that are fast and have a low voltage drop. Quote Link to comment Share on other sites More sharing options...
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