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Mano
เข้าร่วมเมื่อ 8 มิ.ย. 2017
[LTSPice] PSFB (Phase Shift Full Bridge)
Spice + Octave Phase Shift Full Bridge DC-DC
Timestamps
00:00 to 4:00 Theory
4:00 to 6:00 Octave Script
6:00 to 10:00 Full Bridge Verification
10:00 to 18:00 Phase Shift Waveform
18:00 to 24:00 PSFB Working
Asc and Octave script on my drive
drive.google.com/drive/folders/15Lclys1pTiaG8YnmQzBdtCN8Ndxpkz2k?hl=it
Timestamps
00:00 to 4:00 Theory
4:00 to 6:00 Octave Script
6:00 to 10:00 Full Bridge Verification
10:00 to 18:00 Phase Shift Waveform
18:00 to 24:00 PSFB Working
Asc and Octave script on my drive
drive.google.com/drive/folders/15Lclys1pTiaG8YnmQzBdtCN8Ndxpkz2k?hl=it
มุมมอง: 307
วีดีโอ
[Power Magnetics Hardware Interview] : Hard Level + LTspice Part 2
มุมมอง 899หลายเดือนก่อน
This is the second part of that nightmarish hardware interview Don't worry if the video is too long, here the timestamps 00:00 to 2:00 Recap and introduction 2:00 to 11:30 Questions 1-8 11:30 to 24:00 Questions 2-7 24:00 to 33:00 BH curves Know How 33:00 to 36:00 Saturation and Flux Imbalance 36:00 to 43:00 Push Pull questions 43:00 to 50:00 Half Bridge and Full Bridge Waveforms You can find al...
[Power Magnetics Hardware Interview] : Hard Level + LTspice Part 1
มุมมอง 6992 หลายเดือนก่อน
Ok guys, this is hardware magnetics, and the questions are not easy. Second part is basically archmage level I didn't know what kind know what kind of engineer they wanted to assume, but that level of question for an interview is a bit too much What will be the next level? To do all the exams all over again because they don't trust us or the Universities that they pay with their own taxes? Plus...
[Interview Question + LTSPICE] Int01 Current Control Circuit
มุมมอง 1.5K2 หลายเดือนก่อน
Let me know in the comments if you like this kind of video. I thought that it would be nice to give it a shot 00:00 to 10:00 Circuit analysis 10:00 to 20:00 Simulation 20:00 to 30:00 Other possible questions Asc in my drive as always drive.google.com/drive/folders/15Lclys1pTiaG8YnmQzBdtCN8Ndxpkz2k?usp=drive_link
[LTSPICE] Negative Voltage Buck Converter
มุมมอง 2913 หลายเดือนก่อน
Timestamps 00:00 to 10:00 Theory 10:00 to 21:00 Construction 21:00 to 26:00 Skip this part 26:00 to 36:00 Efficiency and Thermal optimization 36:00 to 41:00 Step load and compensation 41:00 to 42:00 FFT Asc in my driver here drive.google.com/drive/folders/15Lclys1pTiaG8YnmQzBdtCN8Ndxpkz2k?usp=drive_link
[LTSPICE] Power Electronics for Energy Harvesting Systems
มุมมอง 4984 หลายเดือนก่อน
Timestamps 00:00 to 07:30 Theory 7:30 to 17:00 Construction 17:00 to 20:30 Waweforms Asc in my driver here: drive.google.com/drive/folders/15Lclys1pTiaG8YnmQzBdtCN8Ndxpkz2k?usp=drive_link
Correct Full Bridge DCDC Driving in LTSPICE
มุมมอง 4445 หลายเดือนก่อน
In this video I show you how to correctly drive a Full bridge and in general a transformer in LTSPICE. As you can see, it is NOT correct to put D and 1-D Timestamps 00:00 to 2:30 Theory 2:30 to 4:50 Duty Cycle and dead time effect 4:50 to 9:30 Waveforms 9:30 to 12:00 What if D and 1-D Asc on my drive here : drive.google.com/drive/folders/15Lclys1pTiaG8YnmQzBdtCN8Ndxpkz2k?usp=drive_link I hope t...
LTSPICE 1kW Interleaved Buck Converter
มุมมอง 5215 หลายเดือนก่อน
Timestamps 0:00 to 3:00 Theory 3:00 to 15:00 Simulations and construction Sch in my driver here: drive.google.com/drive/folders/15Lclys1pTiaG8YnmQzBdtCN8Ndxpkz2k?usp=drive_link
LTSPICE Logic Gate Dead Time PWM for Synch. Buck
มุมมอง 7726 หลายเดือนก่อน
Timestamps 00:00 to 3:00 Theory 3:00 to 9:30 Dead Time Generation 9:30 to 12:10 Synch Buck PWM 12:10 to 17:00 Dead time impact Asc on my drive here: drive.google.com/drive/folders/15Lclys1pTiaG8YnmQzBdtCN8Ndxpkz2k?usp=drive_link
[LTSPICE] 3kW LLC Resonator Soft Switching
มุมมอง 3.3K7 หลายเดือนก่อน
This time I remade the video of the LLC converter Timestamps 00:00 to 7:00 Theory 7:00 to 10:00 Tank Gain Simulation 10:00 to 30:00 LLC Tank Resonator Passive Bridge 30:00 to 43:00 LLC Tank Resonator Synch Rectifier In my drive you will find 1)LLC Tank Only 2)LLC Tank Resonator Passive bridge 3)LLC Tank Resonator Synch Rectifier Link: drive.google.com/drive/folders/15Lclys1pTiaG8YnmQzBdtCN8Ndxp...
LTSPICE RDC Snubber for 250W Flyback DC DC
มุมมอง 9617 หลายเดือนก่อน
Timestamps 00:00 to 05:00 Theory 5:00 to 10:00 No RDC Snubber Waveforms 10:00 to 16:00 RDC Snubber Waveforms and considerations Asc in my driver here drive.google.com/drive/folders/15Lclys1pTiaG8YnmQzBdtCN8Ndxpkz2k?usp=drive_link
LTSPICE Driving Mosfet with negative low voltage
มุมมอง 3877 หลายเดือนก่อน
Timestamps 00:00 to 2:00 Theory 2:00 to 8:00 Costruction 8:00 to 18:00 Waveforms
NPN Overcurrent Protection
มุมมอง 2918 หลายเดือนก่อน
00:00 to 2:00 intro 2:00 to 8:00 Construction 8:00 to 13:00 Waveforms Asc on my driver here: drive.google.com/drive/folders/15Lclys1pTiaG8YnmQzBdtCN8Ndxpkz2k?usp=drive_link
[LTSPICE] Timer and Delay Analog Circuits (without 555timer)
มุมมอง 1.2K9 หลายเดือนก่อน
Timestamps 00:00 to 4:00 Theory 4:00 to 10:00 Delay circuit (When button is released, hold light for 10s) 10:00 to 20:00 Timer circuit (After 100s, the circuit goes down) Asc in my driver here: drive.google.com/drive/folders/15Lclys1pTiaG8YnmQzBdtCN8Ndxpkz2k?usp=drive_link
[LTSPICE] Integrated Circuit Sawtooth for Push Pull DC-DC
มุมมอง 3299 หลายเดือนก่อน
Asc in my drive here: drive.google.com/drive/folders/15Lclys1pTiaG8YnmQzBdtCN8Ndxpkz2k?usp=drive_link Timestamps 00:00 to 2:00 Theory 2:00 to 9:00 Construction 9:00 to 11:00 Consideration and Frequency tuning
[VHDL+LTspice] Mux5to1 using Mux2to1 in Quartus Prime
มุมมอง 33010 หลายเดือนก่อน
[VHDL LTspice] Mux5to1 using Mux2to1 in Quartus Prime
[VHDL] Full Adder in Quartus using Two Half Adder with Port Map
มุมมอง 39210 หลายเดือนก่อน
[VHDL] Full Adder in Quartus using Two Half Adder with Port Map
LTspice Push Pull DC-DC Center Tapped Open Loop
มุมมอง 1K10 หลายเดือนก่อน
LTspice Push Pull DC-DC Center Tapped Open Loop
LTSpice Active Turn on-off path in Mosfets driver
มุมมอง 73511 หลายเดือนก่อน
LTSpice Active Turn on-off path in Mosfets driver
LTSpice Two Switches Forward Converter
มุมมอง 56811 หลายเดือนก่อน
LTSpice Two Switches Forward Converter
LTSPICE Active Clamp and Rectifier Forward Converter (No Diodes)
มุมมอง 1.7Kปีที่แล้ว
LTSPICE Active Clamp and Rectifier Forward Converter (No Diodes)
LTSpice Buck Ideal PI Control Kp Ki Tuning
มุมมอง 1.8Kปีที่แล้ว
LTSpice Buck Ideal PI Control Kp Ki Tuning
LTSPICE RC Dead Time for Synch. Buck Converter
มุมมอง 741ปีที่แล้ว
LTSPICE RC Dead Time for Synch. Buck Converter
LTSPICE Current Sources NPN,PNP and Opamps
มุมมอง 2.2Kปีที่แล้ว
LTSPICE Current Sources NPN,PNP and Opamps
LTSpice Transistor Only Analog Temperature Heater Control
มุมมอง 241ปีที่แล้ว
LTSpice Transistor Only Analog Temperature Heater Control
Great video! Thanks. Try using QSpice. It's much better
Hello. Thank you for the excellent, informative video. There is a reverse voltage surge of about 50V between the emitter and the base of the transistors Q1 Q2. Can any transistor withstand such a voltage between the base and the emitter? Thank you
Thank you so much, I am developing an LED Driver with this topology and it helped me a lot to prepare my simulation
Hi, love the video. Can u explain how u got the LLC-tank values? Im following the Infinion design guide and it does not match at all :/
@@maxi4539 These values are from my trasformer that I use in my Company. I can't say more Because it's confidential and I Risk much. Sorry.
Please make voltage control feedback in flyback circuit
And how to design compensator circuit
@@pallavisingh9973 Ok. That Will be my 100th video of the Channel. Sold.
Do you familiar simulate DC-AC inverter using SCR for full-brdige. If so please provide the video. Thanks
very low voltage ac-dc converter video can make
can you make a video on ac-dc converter having very low input voltage, perhaps 0.3-0.4V?
Great video
Can u please make a ac-dc boost converter, buck-boost and H-bridge converter?
Hi Mano, I have bumped into your channel and I have been viewing in order full of your videos. I would like to say a special thank you for your great efforts. My questions is that what are the differences between Lm1 and L1 in the transformer? Lm1 is participating resonant tank equations, and L1 is considered as transformer operation? In real LLC transformer, how can we extract/measure Lm1 and L1 by using LCR meter to distinguish their values? Thanks in advance!
Hi! Thanks for your comment So in order To create a transformer in LTSPICE, you need two coupled inductors, hence L1 and L2. You need also the parameter K L1 L2 1 to ensure that L1 and L2 are magnetically coupled. If K is less than 1, you are modelling also non ideal coupling. L1 and L2 are related to n^2, hence, if L1=400m and L2=1m, it means that the turn ratio of the transformer is 22 Input 1000V, Output 1000/22 Now Lm1 and Lr1, Lr2 Lm is the magnetizing inductance. In the LLC tank resonator, it has a pivotal role since it performes ZVS on the primary by changing energy with the Cds parasitic capacitance of the SiC mosfet of the primary Full Bridge. To do that, you need precise dead time. Hence Lm and Cr will be responsible for the ZVS on the primary. That's the first frequency. Lr is the leakeage inductance. His role is mainly to give the series resonant frequency for the ZCS (not ZVS, take care) of the secondary synchronous bridge. The current will be modulated by this series LC to make the current go to zero naturally before the mosfet starts commutating. Now, how to measure them You use instruments like Bode 100 and study the primary impedeance, and with some heavy formulas, extract the parameter. Trust me on this, it's a job I am doing, as a Power Electronic Hardware Designer. Fun for the first 10 minutes, heavy after a month. Feel free to ask
@@manoA98A Thank you for your quick response. I really really appreciate it. It sound silly but I am still having a little confusion here for Lm1 and L1. I could measure Lm1 when the secondary is open-circuited by Bode100 or LCR meter. I could also measure Lr1 when the secondary is short-circuited. I couldn't figure out that how to measure L1 in a real transformer. Yes, I can easily understand that K is coupling factor which is used to enter the N1/N2 to the simulation. But, my questions is that Do L1 & L2 values (400m and 1m) has any effect on LLC operation? Or, they are only used for determining turns ratios and they are not reflect any real circuit parameters? Thank you for your explanations in advance. Best regards,
@@volkansuel4910 In LTspice you could put literally any values, provided they are big, because that inductance here has to operate like an ideal trasformer. His role is not to store energy and to change at each cycle like the Lm magnetizing does, but to transfer energy to the secondary. Imagine a trasformer and it has a 2-3% of leakeage flux. That would be the Lr, so, all the other flux is transfered. If you want to measure the true L1, well, it won't even be important as long as you have the gain of your transformer You open there, short that, short this with that and bla bla and obtain the Gain But the L1 and L2? Not useful
How would you now integrate a close loop control in LTSpice? Basically adjusting the switching frequency with changing input voltage and load steps?
Perfect video. Thank you for sharing such a good content. Maybe, as a next step, it would be glad to add SHIM inductor & Current Doubler to see the ZVS capability of the real switches. Keep working on. Respect ! :)
@@volkansuel4910 Thank you for the suggestion. I Will consider current doubler design for a full bridge and highlight the differences with respect to the classic rectfier
For lazy readers Pro: Modulate Vout with alpha Cons: Harder control, Risk of instability, more commutation losses, not ideal for high switching freq. For readers: PSFB has a big advantage : you can modulate the output voltage by controlling the phasing shift angle alpha. But this comes with a cost. The catch Is that not only the pratical impoementation Is harder, but you Will have more commutations and switching losses. For this reason, classical full bridge dominates the market with High Power applications. LLC and soft switching variations for EMI and cleaness.
I guess if you use voltage controlled switch, the simulation will be fatser. Also, you can add r to the diode model at the output.
Your channel should get more attention from the power electronics community. Great content 👍🏻
@@RaedMohsen Thank you very much
Thank you that was a good presentation and I learned a lot from you
Why in the second input cycle,Vout=Vin/2+Vin/4?😢
Thank you Leonardo da Vinci
@@markoalagic9857 Ahahaha Don't be silly! I am not even 1/10 of that man
Ciao. Ho modificato il tuo file .asc aggiungendo gate drivers e mosfets, vorrei mostrartelo e commentarlo se non è un problema. Hai un'email dove puoi essere contattato? Grazie e buona giornata
Can I have ur email?
Sir, can you please make the video on phase shift full bridge converter topology in close Loop configuration. It is my project but about that not much information available on internet in close loop context. 🙏
How can I contact u? I am in Erope
@@mmhasan1234 I gave you my mail in your last comment
Auguroni!!!
Can I have your email?
Can I have your email?
do u have email?
Great video! Thank you!
It doesn't work in my ltspice simulator. How can I reach u?
Why it doesn't?
Can you include a Switched Reluctance Motor model in your simulation like you did for PMSM?
Hello Mano, Can I have your email? I need your help, your assistance.
Hello sir could you please share the simulation file with us as i couldn't find it in your drive thank your for your help .
Thank u very for sharing ur knowledge, it's really helpful. Can u help/guide me in designing ac-dc converter?
I am a student. Can you help me guiding ac-dc conversion using ltspice. i found your video and realized that you are very expert.
your vedios are very useful thanks for sharing
Thnx for the Video! Where is the torque produced by the motor?
I have done exactly the same thing and in the simulation I get a syntax error: unknown symbol: term Why?
It was really very helpful but I'm finding difficulty in building the gain block it is showing an error :unknown sub circuit called in xx2 001 002 gain value, I have implemented the gain block as shown in the video please let me know how to rectify the error
Very helpful video thank you for the simple explanation can you tell me how can i add and feedback to the system
I have already made videos about voltage controlled and current controlled buck converters, check on my channel
@@manoA98A Can I have your email?
@@mmhasan1234 manoarrostita@gmail.com
Sir can I have document (pdf)
Can you guide 1 similar article with Boost Converter ?
I didn't even that ltspice occur B-H curve. You're different teacher. Thanks
your transformer polarity in primary was wrong, flip that's and you will see the right simulations results
@@theambitiousaristocrat This video Is old and wrong. It has been substituted with Correct full bridge driving
I left in my drive two ASC: Benchmark 1 It used to measure how much inductance you lose after having a certain amount of current. You will se that once you surpass the saturation, the inductor becomes a wire basically, with any magnetic propriety, and you will have a short Benchmark 2 It is a more complete version of what I did in the video, even including The H calculation. If you want, you can see it, but, as I said in the video, putting the current on the X axis gives more pyshical meaning to your simulation.
Fantastic video
This is the content for which I pay for internet every month! Good video. I'm waiting for more videos about magnetics in ltspice
How do you incorporate anti-windup in the integrator PI in LTSpice? I'm not quite familiar with the syntax to clear the integrator term based on a windup event. For example, my boost converter has to withstand a huge transient (load step up and down). When the transient occurs from full load to zero, the integrator term drops below zero and gets wound up (my gate drive signal is 0-1 analog).
I can make a video of an Anti windup controller in LTSPICE, but Ideal of course. Made with equivalent of simulinks blocks rather than analog circuits
@@manoA98Athat’d be cool. But mainly I was wondering if you knew the syntax for just a behavioral voltage source for the I term, like V=ki*idt(v(err),0,”anti windup condition”) I’m just not sure how to get idt(v(err)) to be anti windup
Stupid circuit. Output 5.4 V. Voltage stabilization is done 2 times, but the output voltage will jump because there is no feedback. This is not a current stabilizer, this is a VERY BAD voltage stabilizer.
Yeah, you are not wrong. There are way better circuit than this to make a voltage and current stabilizer. Don't know why they choose something like this in an interview
Thanks so much for spice model! Nice sim!
nice session❤️ RC+CC pair with zener circuit😔