Search Engine **www.edaboard.com**

## Sine Wave Filter |

Are you looking for?:

sine wave inverter filter , sine wave amplitude , sampling sine wave , sine wave generator

sine wave inverter filter , sine wave amplitude , sampling sine wave , sine wave generator

162 Threads found on edaboard.com: **Sine Wave Filter**

Hi,
1) Any idea why the FIR **filter** does not attenuate the amplitude of the input signal? Could be an error in the calculation of the FIR coefficients?
usually for two different frequencies you need two different **sine** tables.
My assumption is:
That you just modified the data_rate for the **sine** generation and used the same (...)

PLD, SPLD, GAL, CPLD, FPGA Design :: 03-15-2017 08:32 :: KlausST :: Replies: **16** :: Views: **833**

I assume that you are talking about 230V single phase. In that case first you have to convert that AC (50Hz) to DC using rectifier and **filter** then using H bridge (IGBT) and **sine** PWM pulsing you will get **sine** **wave** of your required frequency. By varying the pulsing from microcontroller you can obtain 48Hz or 52Hz.

Power Electronics :: 01-26-2017 06:31 :: francis29 :: Replies: **1** :: Views: **549**

I produce a rectified **sine** **wave** 1Vpp 100Hz using a PIC + DAC 12bits.
I would like to smooth the line by applying a **filter**.
What **filter** do you suggest?
135668

Microcontrollers :: 01-25-2017 15:24 :: victoramas :: Replies: **4** :: Views: **613**

Hello,
I am designing and building a simple radio transmitter just to practise my electronic skills and learn a little bit more. I started by designing a clapp oscillator, which produce a **sine** **wave** with a fundamental at 1 MHz (the goal), and many harmonics at 2 MHz etc. My first question is if I should add a band **filter** to try to reduce (...)

RF, Microwave, Antennas and Optics :: 12-30-2016 17:06 :: waulu :: Replies: **0** :: Views: **3**

You can have look at the basic working theory @ Its implemented for LPC2148 but the underlying working is the same. You need to generate or use a hardcoded **sine** lookup table which feeds values to your PWM block and at the PWM output use a **filter** which acts a D

Microcontrollers :: 04-06-2017 12:19 :: Power_user_EX :: Replies: **9** :: Views: **1775**

Problem is also that the bridge requires **sine** rather than square **wave** input. A **filter** (e.g. low-pass) is required. Could insert an amplifier too.

RF, Microwave, Antennas and Optics :: 09-19-2016 06:32 :: FvM :: Replies: **8** :: Views: **606**

At the output i am using 1kOhm and 102 to **filter**.
102 means 1 nF? 1k*1nF = 1?s time constant = low pass cut off frequency 160 kHz. How should it **filter** 20 kHz pwm?
Secondly, why are you stepping through the **sine** table up and down alternatingly? Makes no sense. A **sine** full cycle should be repeated continuously, either up- (...)

Microcontrollers :: 09-14-2016 11:33 :: FvM :: Replies: **15** :: Views: **1035**

Hi guys!
I have one simple question. If I design a **filter** circuit for a **sine** **wave** signal, is it possible for the same **filter** circuit to be implemented for different type of signals (for example square **wave**, ping, etc)? The signal have the same frequency and used in the same environment. If yes, what are the (...)

Analog Circuit Design :: 08-03-2016 16:15 :: helmi_mjd :: Replies: **3** :: Views: **396**

no other requirements?
THD, impedance? phase noise?
Perhaps **sine** **filter** on PECL output

Analog Circuit Design :: 07-26-2016 11:38 :: SunnySkyguy :: Replies: **6** :: Views: **836**

A 40khz square**wave** has harmonics at 80kHz, 120kHz, 160kHz and many higher multiples. An RC lowpass **filter** can be made with one series resistor then a capacitor to ground and it can reduce the harmonics a little but the **filter**ed **wave**form will not yet be a **sine****wave** unless many RC (...)

Elementary Electronic Questions :: 07-22-2016 03:51 :: Audioguru :: Replies: **7** :: Views: **844**

For designing and measuring an audio amplifier I use a **sine****wave** to measure its output power at clipping and its distortion.
A **sine****wave** has a defined peak to RMS relationship (peak V= 1.414 times RMS V) and has no harmonics.
SPWM has switching artifacts that must be **filter**ed out with a very good (...)

Power Electronics :: 06-16-2016 15:32 :: Audioguru :: Replies: **19** :: Views: **1659**

details of your output choke? which you assume is saturating? if you put an RC **filter** on the o/p of your H bridge, you can look at this on a scope and you should see a **sine** **wave**, if you operate your inverter with no load, unless the **filter** is properly damped (and not resonant at Fsw or Fo/p) you may well see some (...)

Hobby Circuits and Small Projects Problems :: 06-11-2016 05:55 :: Easy peasy :: Replies: **6** :: Views: **523**

hi,
What type of feedback amplifier (type-2,type-3 or PI) is used in a pure **sine** **wave** inverter?
Suppose an inverter consists of a h-bridge and a low frequency iron core toroidal transformer. H-bridge is derived by sinusoidally modulated PWM (20KHz). At the secondary of the transformer there is a **filter** to get **filter**ed (...)

Power Electronics :: 05-21-2016 03:51 :: adnan012 :: Replies: **3** :: Views: **420**

I have a Pic16f628a does anyone have a pure **sine** **wave** inverter design with a hex I could build with pcb also something like 500 watts or more.

Power Electronics :: 04-29-2016 16:59 :: Enzy :: Replies: **4** :: Views: **704**

Sounds like a useless setup. Bandwidth respectively ac response is defined for **sine** input signals, not square **wave**.
Usually AC response is determined for small signal, e.g. using AC analysis of a circuit simulator (with VAC source). A large signal transient analysis can be performed with different **wave**forms (e.g. VSIN or VPULSE), but (...)

Analog Circuit Design :: 03-09-2016 13:36 :: FvM :: Replies: **1** :: Views: **369**

I'm new here, I have some fairly basic doubt. I am creating a PWM signal in MatLab by comparing a **sine** **wave** (50Hz) and a triangular **wave** (2kHz) ....
1- So what is the PWM frequency will output?
2- After getting the PWM signal **filter**s I want to get a sinusoid, using an LC **filter**, but do not know what (...)

Analog Circuit Design :: 02-03-2016 17:19 :: ricperes :: Replies: **0** :: Views: **2**

The half-bridge applies 12 V peak-to-peak, so 6 V peak. The secondary will receive 6*(220/9.5) = 140 V peak. Since the DVM is calibrated for **sine** **wave** the 74 V reading is not unreasonable even if a little lower than expected. If you can't get a true RMS meter, half **wave** rectify and **filter** the output, this will give you the (...)

Hobby Circuits and Small Projects Problems :: 01-30-2016 18:40 :: ydtech :: Replies: **15** :: Views: **854**

Your reservoir capacitor takes a pulse of current only at the peaks of the incoming **sine** **wave**. This high current is saturating the transformer core. You need a better transformer or a choke input DC **filter**.
Frank

Elementary Electronic Questions :: 12-03-2015 07:52 :: chuckey :: Replies: **8** :: Views: **580**

Thanks for the reply.
I didn't quite understand some of it. So you're saying that you take two VCOs and mix them together (one of which is a voltage controlled cavity resonator)? What did you mean by "offset by the fmax"? In my example (1 MHz to 5 GHz), can you give some numbers? I can imagine that you could mix together two oscillators, one tuna

RF, Microwave, Antennas and Optics :: 10-27-2015 05:21 :: aaron_do :: Replies: **3** :: Views: **474**

Hi all, if we have a current mirror to generate a current source signal or sink signal, with repetitive rate frequency, such as **sine** **wave**, are we able to apply some low pass **filter**ing circuit directly to this current, and generate a close to DC level current? Thank you!

Analog Integrated Circuit (IC) Design, Layout and Fabrication :: 10-06-2015 01:02 :: bhl3302 :: Replies: **2** :: Views: **445**

hi, i am going to design pure on-line **sine** **wave** inverter, ranges from 600va to 1000va capacity. i analyzed some reference design and i got how to make it. but only the point is choosing input EMI line **filter** and output flyback transformer. In reference design there is long calculation but i unable to get that, please anyone help me?

Power Electronics :: 07-25-2015 20:23 :: parthiban :: Replies: **1** :: Views: **646**

I am using this circuit. As DC bus I am applying currently 30V and at output I am able to achieve a **sine** **wave** by further employing a **filter** Circuit
In theory what should be the peak output voltage of the **sine** **wave**???? Shouldn't it be +30V
I am getting a peak of +12.5V and 25V p-p.
Hi
Who told that out put (...)

Power Electronics :: 03-26-2015 14:45 :: goldsmith :: Replies: **2** :: Views: **555**

Hello to all.
I have built a pure **sine** **wave** inverter from 12v to 230v AC at aproximately 500W.
The DC/DC converter is the usual forward converter with sg3525 and ETD39.
Now my actual problem is the LC **filter** at the output.
The output is 50HZ **sine****wave**.
The SPWM is 24.3KHZ.
The H bridge (...)

Power Electronics :: 03-24-2015 15:16 :: mrdevil83 :: Replies: **1** :: Views: **962**

The output of a first order **filter** can be most simply predicted in time domain, it's just a succession of exponential **wave**s. The first derivative will be always discontinuous, so it can be clearly distinguished from a **sine**.

Elementary Electronic Questions :: 02-25-2015 15:30 :: FvM :: Replies: **5** :: Views: **610**

1. Control system is a generalized theory and low pass **filter** is an application. That's the only relation between them.
2. Every random signal is composed of basic types of signal. Just like when u do Fourier transform of a signal, u fins out all the frequencies within the signal. And every signal is a **sine** **wave**, a basic building block of (...)

Elementary Electronic Questions :: 02-02-2015 16:58 :: ashugtiwari :: Replies: **4** :: Views: **561**

It depends what topology is used. Half bridge resonant or full bridge flyback or feed forward. Square **wave**, tri-level , pseudo-**sine** **wave**
one must also consider egress noise for total **filter**ing of CM and DM **filter**s and define those falong with output harmonic content.
But normally operating any bridge is (...)

Power Electronics :: 12-06-2014 17:29 :: SunnySkyguy :: Replies: **27** :: Views: **3723**

There is a lot article on this regards. And I try to follow there directions. But I stuck with LC **filter**. Can any one help me on this regards. I enclosed my H-Bridge circuit. I vision is to generate 50~100 Watt Inverter (220V, 50Hz) **sine** **wave** ac from a DC 12V battery with SPWM Technique.
112054
I used [URL="ta

Microcontrollers :: 12-05-2014 12:24 :: bkar :: Replies: **12** :: Views: **1832**

Hi,
(Please find the data in the pdf file attached).
I am simulating a **filter** in the LTSPICE. The input to the **filter** is the quantised and sampled version of the **sine** **wave**( i generated the **wave** from data in the MATLAB by my code and I gave the data set to the **filter** which is 2nd order (...)

Analog Circuit Design :: 11-08-2014 21:00 :: Chaitanya Varma D :: Replies: **0** :: Views: **897**

Hi Nick. Are you trying to produce a pulse, or a **sine** **wave**? Are you converting the PWM output back to analog with a **filter**?
You have two basic controls on a PWM: frequency and duty cycle. Generally with a micro you control these by setting the clock source and frequency, total PWM cycle period (or timer overflow counter in clock (...)

Microcontrollers :: 10-17-2014 11:52 :: ARQuattr :: Replies: **3** :: Views: **1762**

you will get (230 X 1.414) -2 X .8V (voltage drop across the diodes, when off load. As you load it up the voltage will fall and will end up as a DC with a peak voltage of the above but will have a **sine** **wave** shape, so the mean DC will be 230V.
Frank

Analog Circuit Design :: 10-16-2014 11:48 :: chuckey :: Replies: **2** :: Views: **560**

how to design a RC lowpass **filter** in mentor graphics tool.
I mean how to apply the **sine** **wave** source and values that should be given for transient analysis....

Software Problems, Hints and Reviews :: 09-07-2014 11:10 :: kanya :: Replies: **0** :: Views: **659**

If you add a square **wave** to a slightly delayed copy of itself, you get a staircase **wave**form that looks more like a **sine** **wave**. Delays up to about a quarter **wave** would be useul. I don't think this approach can be used if you only have three inverters, so you will need to use an analog **filter**.

Analog Circuit Design :: 07-11-2014 14:22 :: godfreyl :: Replies: **5** :: Views: **643**

Unless there you don't mind measuring Signal + Noise, the appropriate method is to convert Peak to RMS assuming **sine** **wave** and RMS=Peak/Root(2) or 0.707 x Vp as Audioguru stated.
If you want to eliminate noise, then a tracking **filter** is needed.

Analog Circuit Design :: 07-01-2014 21:04 :: SunnySkyguy :: Replies: **11** :: Views: **1243**

The 555 output is a square **wave** that is full of harmonic frequencies, not just one **sine** **wave** frequency.
You need a bandpass **filter** for each frequency that is not a simple capacitor.
Why not use a touch-tone encoder IC for the transmitter and a touch tone decoder IC for the receiver instead then the frequencies will be (...)

Hobby Circuits and Small Projects Problems :: 07-01-2014 17:16 :: Audioguru :: Replies: **2** :: Views: **702**

If you consider a bit of RF hash flowing down through a **filter** capacitor, it arrives at the "neutral" point, then where does it go? Up through the other LPF caps into the other FETS? - they may be off? Also the neutral point is neutral wrt the 50 HZ, not to the PWM carrier, because even if the PWM carrier is exactly timed so each pulse is 12

Power Electronics :: 05-02-2014 06:37 :: FvM :: Replies: **13** :: Views: **2063**

Did you observe the **wave**form across a resistor in series with the capacitor? In that case the capacitor acts as a high-pass **filter**. High frequency noise would show up.
I can see a lot of hash just by touching the probe clip. The **wave**form resembles a rocky mountain, instead of a 60 Hz **sine** **wave**.
An (...)

Elementary Electronic Questions :: 04-27-2014 05:20 :: BradtheRad :: Replies: **1** :: Views: **571**

This link has an informative article:
'DC/AC Pure **sine** **wave** Inverter'
It describes designing and constructing one.
(This ebook is several MB and may take a while to load. It can be found at more than one website, and it may pay to try a few, if one site bogs down.)

Power Electronics :: 04-13-2014 04:07 :: BradtheRad :: Replies: **3** :: Views: **2466**

I follow the instruction in Microchip Application Note AN236 to design a simple PLC. I simulate its modules separately to ensure that it works. But when I attach the PWM signal into the power line through a high pass **filter**, the power signal is still **sine** **wave**! (Of course! It's the power source, the voltage can't be changed!)
What the thing (...)

Power Electronics :: 02-28-2014 16:27 :: dazzlingvit :: Replies: **0** :: Views: **677**

Any way about the math... the **sine** voltage is across the 50 ohm load and with a peak value of 5V so a current of 5/50 = 0.1A is flowing and at resonance we are left only with the the two resistor in series.
Definitely not right. If you remove the 50 ohm resistor, the series LC circuit shorts the input source in resonance. The 50 ohm

Analog Circuit Design :: 12-13-2013 08:32 :: FvM :: Replies: **6** :: Views: **1899**

is there a low pass analog **filter** for square **wave** which does not cause ringing effect or conversion to **sine** **wave**.....
or please say which is best **filter** for square **wave**...
if so please give the circuit diagram of that **filter**...
What about a lowpass with Thomson-Bessel response?

Analog Circuit Design :: 12-02-2013 21:29 :: LvW :: Replies: **4** :: Views: **753**

A 555 will give you a square **wave**, not a **sine** **wave**. I suppose you COULD put a **filter** on that , but I think you'd be better off just generating a **sine** **wave** and amplifying it.

Analog Circuit Design :: 11-30-2013 03:32 :: barry :: Replies: **10** :: Views: **1114**

I m designing a pure **sine** **wave** inverter of around 2 kVA. Can somebody propose me a sort of **filter** for switching frequency? Please mention any types!

Power Electronics :: 11-25-2013 05:05 :: Yasir Usman :: Replies: **2** :: Views: **1185**

The easiest solution is to use a low-pass **filter** to cut harmonics.
I am sorry to misread the definition of the problem. To get a **sine** to square-**wave** conversion a 10 GHz, I used Hittite HMS 647 fast comparator working up to 12 GHz, maybe you can try it or check Hittite component selection.
Generating harmoni

RF, Microwave, Antennas and Optics :: 11-06-2013 14:35 :: jiripolivka :: Replies: **4** :: Views: **646**

I then need to low pass **filter** each half **sine** but I really need to preserve the sharp edges at the bottom where they join.
You better describe what you actually want to achieve.
After low-pass **filter**ing the rectified **sine** you either get a pure DC voltage, or a DC voltage with superimposed 100 Hz **sine**, (...)

Digital Signal Processing :: 10-29-2013 08:04 :: FvM :: Replies: **6** :: Views: **630**

nope. Since it is a digital gate, it is expecting a digital input, like a square **wave**. A square **wave** would have a strong 15 GHz component also, and you definitely would not want to **filter** it out.
If you are sending it a non-digital input, like a **sine** **wave**, and it only happens to have a 2nd harmonic (...)

RF, Microwave, Antennas and Optics :: 10-05-2013 17:03 :: biff44 :: Replies: **2** :: Views: **562**

I agree with Picgak. This design is practical. You should complete it first. To replicate your system front and back of your boards and hex code will be required. I suspect the cause of malfunction is more, the RF interference generated by the inductor rather than any other issue, generated due to improper layout.
I found these documnts of your in

Power Electronics :: 10-03-2013 12:25 :: ALERTLINKS :: Replies: **113** :: Views: **25131**

A recent thread here discusses an LC **filter** for a similar **sine****wave** inverter.
It is three pages worth and it may have helpful information.

Power Electronics :: 09-28-2013 17:33 :: BradtheRad :: Replies: **1** :: Views: **1179**

Hello
I am trying to make a **sine** **wave** inverter. But i am facing a lot of troubles. At the first time i feel it might be easy to generate the **sine** **wave** using the controller because i studied that using a low pass **filter** at the output of the high frequency output of the controller then the square (...)

Microcontrollers :: 07-01-2013 07:38 :: anoop kr :: Replies: **3** :: Views: **1371**

hi,
i have formulated extended kalman **filter** estimation for a channel with **sine** **wave** input. now i want to make the channel rayleigh faded. i need the slow fading case. can anyone please help me with it...
Thank you..

Digital communication :: 06-17-2013 05:19 :: Lekshmi B S :: Replies: **1** :: Views: **645**

Hi, any one know how to design square **wave** to **sine** **wave** with MOSFET? frequency about 20MHz and unity gain if possible. Thanks

Analog Circuit Design :: 05-21-2013 06:15 :: suribright :: Replies: **3** :: Views: **531**

Last searching phrases:

spi examples | dot matrix message display | circuit simulation matlab | power down detection | 555 power delay | nanosim verilog vcs | design manager | pic current consumption | mat lab | physical layout

spi examples | dot matrix message display | circuit simulation matlab | power down detection | 555 power delay | nanosim verilog vcs | design manager | pic current consumption | mat lab | physical layout