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60Hz Square wave to sinusiodal

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Gundam001

Gundam001

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60 hz sine wave oscillator

Hi guys, I'm planning to convert a 60hz square wave to a sine wave, could someone help me in how to to filter/or convert the wave...

I need it badly.. thanks..

:cry:
 

60 hz sine wave generator

Thanks,

By the way, do this will not cause distortion in the output sinosiodal when load will be applied since it is operated in low frequencies..:arrow:
 

square wave to sine wave using filters

That depends on the type of OPAM you will be using ..
For example, if you use power opamp such as L272 ( https://www.fairchildsemi.com/ds/L2/L272.pdf ) you can draw up to 0.7A from its output ..
Standard opamps will give you <10mA, or whatever output current they are rated for ..

Regards,
IanP
 

60 hz sine wave

Its much clearer for now..

I'm planning to boost the current of the square wave to a level above 5A before filtering it to become sine wave. Is it possible?
 

square wave to 60 hz sine wave

Much better idea is to amplify sine wave after filtration ..
For that (60Hz) you can use any integrated audio amplifier ..

Regards,
IanP
 

square wave orcad harmonic

I think you've miss interpret it.

I'm not using audio signal, I'm using a power signal. I would like to create a sinusoidal inverter, by doing this I would have an sinusoidal input with high current capacity to the transformer before step-up to 220V 60 Hz..

How could I boost the current rating of that sinusoidal signal above 10A.
 

60hz square wave circuits

Hi,
try to use an integrator followed by a diode conformator
 

square wave to sine wave low pass filter pwm

can you explain to me the diode conformator, its quite a new term to me.. can you show me a reference circuit.
 

squarewave to sinewave circuit 60hz

I don't think you want to build a sine-wave inverter by trying to filter a big 60Hz square-wave. The low-frequency filter components would be enormous, and the output impedance would be poor. One common way to do this is by using a high-frequency PWM followed by a relatively small filter that removes the PWM frequency. Maybe you can get some design ideas from this service manual for the Agilent 681x family of AC Power Sources. It includes schematics and a brief "Principles of Operation":
**broken link removed**
 

60hz wein bridge oscillator circuit

Hi Gundam001
See P34 &35 of
**broken link removed**

timo67
 

60 hz square wave oscillator

timo67 said:
Hi Gundam001
See P34 &35 of
h**p://www.alsdesign.fr/alsftp/orcad/Supports_PSpice.pdf

timo67
Click to expand...

You've shown me wrong view --- "modulation"--- what is the connection with this to the Power inverting process..
 

60 hz square wave to sine wave

timo67 said:
Hi Gundam001
You've shown me wrong view --- "modulation"--- what is the connection with this to the Power inverting process..
Click to expand...
Pulse Width Modulation of varying duty cycle with low pass filter are used generate "Sine Waves" in many commercial power inverters.
 

60hz sinewave oscillator

CMOS said:
timo67 said:
Hi Gundam001
You've shown me wrong view --- "modulation"--- what is the connection with this to the Power inverting process..
Click to expand...
Pulse Width Modulation of varying duty cycle with low pass filter are used generate "Sine Waves" in many commercial power inverters.
Click to expand...

I know that, but the problem is after you have the "sine wave" how you will boost up the sine wave to a higher current level so that it can compensate to the need of the output?
 

square wave to sine by filter 60 hz

Build a 60Hz sine/square wave generator, filter out all harmonics and feed this 60Hz sine wave signal to an amplifier .. This can be normal AUDIO power amplifier ..
Then connect the output of this amplifier to a 12/24-230V transformer .. and off you go ..
Maybe this is not the best and most efficient way but it is simple ..

Regards,
IanP
 

sine generation pi filter

IanP said:
Build a 60Hz sine/square wave generator, filter out all harmonics and feed this 60Hz sine wave signal to an amplifier .. This can be normal AUDIO power amplifier ..
Then connect the output of this amplifier to a 12/24-230V transformer .. and off you go ..
Maybe this is not the best and most efficient way but it is simple ..

Regards,
IanP
Click to expand...

I've also thinking this way but, I think the output will drop dramatically or the stability of the output is not satisfied when the load increase in number..
 

5a square wave power

Gundam001,

If you want to build something efficient, you should use PWM at a frequency high enough that you can use a smaller filter to generate a sine wave. Here is (in general) the way it is usually done:

(1) Build a sinewave generator (like a Wien Bridge Oscillator) with a fixed 60 Hz sinewave output (low current circuit).

(2) Build a higher frequency triangle wave generator (like 100+ or 1000+ times the frequency of the sinewave). The higher the frequency, the smaller the output filter requirements but the greater the output switching noise.

(3) Compare the sinewave to the triangle wave, generating a PWM pulse train.

(4) Feed the pulse train into a high current switching amplifier (could be IGBT, Power BJT, Power MOSFET). Feeding the pulse train will cause the semiconductor switch to operate in either completely open or completely closed. Look up type D amplifers.

(5) Filter the output with a low pass filter, usually ladder of series inductors and shunt capacitors (like a pi filter). Part of the filter current can be a transformer to step the voltage up if necessary. A transformer will be a natural filter because of the inductance in the coils.

-jonathan
 

60hz sine wave oscillator circuit

I'll try this and inform you if its work.. thanks again..
 

modulate sine wave with square wave

Gundam001 said:
Pulse Width Modulation of varying duty cycle with low pass filter are used generate "Sine Waves" in many commercial power inverters.
Click to expand...
I know that, but the problem is after you have the "sine wave" how you will boost up the sine wave to a higher current level so that it can compensate to the need of the output?
Click to expand...
The high-frequency PWM output stage runs at high voltage and high power. When you filter it (by using relatively small components), you have your high-power 60Hz sine-wave. See that Agilent service manual. Its PWM output bridge runs at 83 kHz and around 500 volts.
 

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