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The sawtooth wave does it automatically as an analog function. It is a geometric method to solve two simultaneous equations. Namely, where do the two graph lines intersect? When we try to code it we must use a mathematical approach. I believe it's a calculus problem. Start with the first time increment. Ask, what length does a pulse need to be,
thanks for the reply.. I just have a few questions for you, if you dont mind.. with the PLL circuit, will it have help me control any changes in the grid frequency? what are the possible causes of frequency variation across the inverters output? and how about the output voltage of my inverter? will a voltage sense circuit en
Hello all, I am looking at the technical note for high-speed interfaces for a FPGA. It says that the pulse I have to provide can be assynchronous to the clock, but must be at least two clock cycles wide. For me one clock cycle / period is this: . _ _ _ _ _ _ _ _ _| |_| |_| |_| |_| |_| |_| |_| |_ from he
114188 114189 g1,g2 ....... onn ...... +ve voltage g2,g3 .......onn........ 0 zero voltage g3,g4 ........onn ....... -ve voltage it is the switching theme..! hi i have attached the above diagrams of NPC inverter topology the basic question is about the attachment of the driver ic ir2110 i
as we know a buffer is made of two inverter ,but why the two inverter are created as same in the layout???
Hi, Thanks for your valuable feedback. I have checked with the exact value (= 353nF) and it is giving almost the same results ( with little difference in frequency) as with 470nF capacitor. I have also checked with 330nF capacitor. The result is the same. Basically, there is no standard value capacitor with 353nF available in the market. Therefor
What kind of circuit do you mean, - two-quadrant buck or boost PFC? - four-quadrant active front end?
Hello, The following two LTspice simulations are almost exactly the same (both full bridge SMPS?s)?They have the same NP/NS value, but slightly different primary and secondary inductance values. Everything else is the same about these SMPS's. So why does the one with lower primary inductance have a higher output voltage? (316V versus 301V)
I have two question, 1- what if I want to make it for 24V with 3kva power. 2- If I boost my supply from 5v to 18v then the grounds will remain the same so no isolation please answer my question.
while I repaired an inverter, I found one thing That I did not understand and ask for an explanation To you. It is an 12v 220v modified sine wave Internally there are four transformers each driven by two mosfet IRF320
Your LC arrangement could be called a second order butterworth filter. It should be designed to resonate at a higher frequency than your switching frequency. However it is possible the two frequencies are close together. It is essential that a load be present across the capacitor. With no load, you may expect it to draw enormous current. A simila
you have to think in terms of how the aocv table has been generated. The aocv is generated using back to back one inverter, two inverter and three inverter. So when the delay says 1st stage then variation is 0.9 and the delay gets multiplied by 0.9 ....when two are there then the variation of delay is (...)
Dear, I need to rectify the output of a commercial inverter (Chinese - 12V to 220V - 250W) and then filter it to have a DC voltage. The rectifier works perfect, but when I connect two capacitors in series to achieve the necessary voltage the output became zero. Which is the effect that the capacitors ge
The main reason of your problem is the output of the two transformers are not ok as a series connection should have. They are being connected with the same polarity. It will be good to find the error if you can show the circuit diagram. Anyway, you can test it yourself. Just keep the output of these transformers open. Then run the system. If FETs a
he CMOS inverter structure creates two parasitic transistors namely PNP & NPN as shown in enclosed Fig.These transistors so exist such that each collector drives the Base of the other BJT. This results in formation of a pnpn switch that exists across VDD/VSS supply line.When the breakdown voltage of parasitic switch is less than the CMOS (...)
adding a zero crossing in this sinewaveform ?? I believe a sine waveform has exactly two zero crossings per cycle. How do you add zero crossing (and maintain the sine waveform)?
If you build this circuit,you realise that you must have a manually operated switch to restart the inverter after a low battery shut down? two obvious methods:- one is to feed the battery via normally open relay contacts to the circuit. connect the relay coil downstream of the contacts, put a driving transistor between the coil and earth. Or put
Can IR3537 be used instead of IR2110 in typical bridge converter/inverter to drive high and low side MOSFET? It has two outputs (HI hand LO) and bootstrap mechanism like IR2110. But, I'm not clear how it works with only one input signal (pin3, PWM)... Pin description: Pin3, PWM: The PWM signal is the control input for the driver from a 1.8V or
Hello, I am refining this amplifier this time I perform some measurements as I build it. I have built the input circuit up to T1. I connect the 50Ohm oscilloscope to the two points of the transformer (not the center tap). I expected to see inverter sinewave waveforms, but I see inverter distorted waveforms. Is that norma
Please Define the purpose of ZCS pulse. pulse width? Lag/lead? Polarity? Or just high or low if Vo<=x where x=<0.5V two common solutions 1. A logic inverter can make sine > square wave {with ac couple and 1M feedback.} An XOR gate with small RC delay on 1 side can produce pulse for each transition. RC delay can be anything from <<1us to >