i mean an electrical device like transistor,rectifier like that.
2006-09-02 03:20:08 · 6 answers · asked by CHIMPU 2 in Science & Mathematics ➔ Physics
The device you refer to is called an inverter.
In answer to the second part of your question,
the first inverters were used in car radios so the a/c produced could be stepped up in a transformer to supply the tubes (yes, I said tubes) with the high plate voltages necessary to amplify the signal. It was a simple "vibrator." A mechanical set of points which simply vibrated (similar to a door bell) to "switch" the positive and negative voltage at the output. Obviously, this wasn't a very good A/C source and it wasn't a sine wave - more of a square wave because it was simply turning the positive and negative voltage on and off.
Inverters today use solid state devices to switch the DC - the simplest circuits use three transistors to switch the voltage at a particular frequency (usually 60 Hz) resulting in an AC output. However, this is, again, not a very good sine wave. Much more complicated (and more expensive) inverters use IC chips and many more transistors to more accurately mimic a true sine wave.
2006-09-02 04:03:18 · answer #1 · answered by LeAnne 7 · 1⤊ 0⤋
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2016-11-23 19:05:49 · answer #2 · answered by crooker 4 · 0⤊ 0⤋
I don't think such a device exist .Even discrete oscillator IC still need external components to make circuit working.
What is your application?Is the space so critical?
2006-09-02 07:19:52 · answer #3 · answered by dwarf 3 · 1⤊ 0⤋
It is called inverter available in many electronics, auto stores like radio schak etc. they vary in prices $200 to thousands of dollars.
Depending uopn your use like wattage, quality of the output like true sine wave , or modified sinewave or pulse you can choose the right one
2006-09-02 03:31:01 · answer #4 · answered by Dr M 5 · 1⤊ 0⤋
What you are looking for is called an inverter which will convert DC to AC.
2006-09-02 03:29:03 · answer #5 · answered by tlets 2 · 1⤊ 0⤋
You can use an oscillator. It is constructed using transistors, inductors & capacitors.
2006-09-02 04:03:30 · answer #6 · answered by hunnyhiteshseth 2 · 0⤊ 2⤋