nuttaphong191
- Mar 31, 2007
- 33
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- Mar 31, 2007
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- 33
hi there , i need to convert a 15v dc to a 15v ac 50 hz, is this possible for a beginer like me? i herd you can do this based on a 555 astable
audioguru2
- Apr 6, 2004
- 12,026
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- Apr 6, 2004
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- 12,026
If an ordinary 555 has a 15V supply, as an oscillator its output goes up to only about 13.8V and down almost to 0V. So the output is not 15VAC.
A Cmos 555 like an LMC555, TLC555 or ICL7555 has an absolute max supply voltage of 15V and its output will swing up to exactly 15V and down to 0V if it has a very high load resistance.
The outputs of a 555 and a Cmos 555 are square-waves.
A Cmos 555 like an LMC555, TLC555 or ICL7555 has an absolute max supply voltage of 15V and its output will swing up to exactly 15V and down to 0V if it has a very high load resistance.
The outputs of a 555 and a Cmos 555 are square-waves.
LostViking
- May 22, 2007
- 36
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- May 22, 2007
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- 36
Yes the 555 has a squareware output. But you can integrate this over a cap and get a psuedo signwave. Use that to drive a descrete transistor switching the DC. You will have to play with it, but it's doable.
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