baileychic
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Today, 02:19Respectfully - I cannot agree with you.7 replies | 177 view(s) -
Yesterday, 22:33looking at those equations, they only come into play when Rload is very large and the duty cycle D is very large & L is large - under these...7 replies | 177 view(s)
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17th May 2019, 07:46Easy peasy replied to a thread Phase and frequency locking multiple (9 units) LLC drivers that are each 10cm apart in Power ElectronicsWhy I insist on LLC: 1- Severe oscillations on the secondary rectifiers.(especially at light load). Need heavy snubbers to damp. Yes but its...15 replies | 357 view(s)
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16th May 2019, 21:56you seem not quite to understand the full import of the word - unavoidable. Your sim and the real world will be different, choose mosfets with...13 replies | 903 view(s)
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16th May 2019, 21:45Easy peasy replied to a thread Phase and frequency locking multiple (9 units) LLC drivers that are each 10cm apart in Power ElectronicsThe assumption is, with rectifying, that you have very large o/p caps to give a stable Vout - without this the paralleling you are seeking...15 replies | 357 view(s)
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16th May 2019, 08:47you haven't zoomed in on the overshoot at turn off - what you have captured is a blip ... please try again ...12 replies | 985 view(s)
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15th May 2019, 23:27Your gate drive is possibly too soft, the overshoot is well reduced with the 100nF 630V cap across the supply right by the IGBT's the...12 replies | 985 view(s)
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15th May 2019, 08:38not Cds, reverse recovery of internal diode - if you dissect the fet model you may see it there ... - in real world it will likely be less...13 replies | 903 view(s)
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15th May 2019, 04:02Easy peasy replied to a thread Phase and frequency locking multiple (9 units) LLC drivers that are each 10cm apart in Power Electronicsimpossible to answer without seeing the control ckt so far ...15 replies | 357 view(s)
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15th May 2019, 03:59you might consider putting in a resistive load on the sim ... - - - Updated - - - the sim might be giving the reverse recovery in the other fet...13 replies | 903 view(s)
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15th May 2019, 03:54Easy peasy replied to a thread Help for my Collpits oscillator circuit in RF, Microwave, Antennas and Opticsthe layout is just too open - which is not helping - your gnd plane is not a gnd plane, use blank pcb ( full copper sheet ) and solder every...11 replies | 618 view(s)
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15th May 2019, 03:47I see you are switching on & off quite slowly with those high-ish gate resistors - but you still need 1uF 630V say across the pair of IGBT's from...12 replies | 985 view(s)
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14th May 2019, 22:30Easy peasy replied to a thread Paralel connection of multiple LLC converters with synchronous rectification. in Power ElectronicsI am assuming you have never done any thing similar before? to completed and working? you could, in theory, parallel the AC output of the LLC ...17 replies | 1688 view(s)
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14th May 2019, 13:08baileychic replied to a thread Automatic temperature controller using pic 16f877a [MOVED] in MicrocontrollersZip and post the complete mikroC PRO PIC project files and also the Proteus file so that I can test it here and fix it if needed.8 replies | 226 view(s)
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14th May 2019, 11:55baileychic replied to a thread Automatic temperature controller using pic 16f877a [MOVED] in MicrocontrollersYou have to change this, volt=result*4.88; to this volt=(float)result*4.88;8 replies | 226 view(s)
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14th May 2019, 08:33Easy peasy replied to a thread Paralel connection of multiple LLC converters with synchronous rectification. in Power ElectronicsNo, you don't need to synch the converters - we used an LLC variant - parallel btw, 300A is a lot for LLC - the ripple current in the o/p...17 replies | 1688 view(s)
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14th May 2019, 05:06Easy peasy replied to a thread Paralel connection of multiple LLC converters with synchronous rectification. in Power ElectronicsGenerally the best method is to have accurate volt and current settings on each rectifier - command them all to be the same - then work out...17 replies | 1688 view(s)
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13th May 2019, 14:50baileychic replied to a thread Automatic temperature controller using pic 16f877a [MOVED] in MicrocontrollersIn mikroC code if you use assign integer value to float or double type variable then that doesn't work. Try this. // LCD module connections...8 replies | 226 view(s)
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13th May 2019, 02:45Easy peasy replied to a thread Leakage Inductance and primary inductance for Flyback converter in Power ElectronicsI get the impression that the other windings are not being shorted properly - a sketch of the actual construction is needed to get to the root cause...11 replies | 985 view(s)
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12th May 2019, 08:39You really need to design with gate drive transformers - some for signal - or use an optocoupler based gate drive and then use other gate drive...18 replies | 2926 view(s)
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12th May 2019, 00:40you need a 3rd switch either on the pri or sec to short out the transformer in the dead time between power pulses - else the magnetising current in...9 replies | 2027 view(s)
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12th May 2019, 00:25What are those diodes? if there is no change you must be picking up noise on your scope - put croc clip and probe to the same point ( i.e....29 replies | 3189 view(s)
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10th May 2019, 16:17baileychic replied to a thread How to read signal similar to half-wave rectifier output using PIC16F's ADC? in MicrocontrollersI don't wany mean or average. I want only peak value that is if peak is 2.5V I need to display it as 2.5V.11 replies | 272 view(s)
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10th May 2019, 14:02Where is Ready signal connected to and from where it comes? I guess your professor has asked you to use external interrupt to detect Ready signal...5 replies | 393 view(s)
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10th May 2019, 13:15baileychic replied to a thread How to read signal similar to half-wave rectifier output using PIC16F's ADC? in MicrocontrollersI had even tried the timer method but that didn't read anything. Here is that code. Okay I will add a resistor as load at RA0 pin (4.7k). //...11 replies | 272 view(s)
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10th May 2019, 06:37baileychic replied to a thread How to read signal similar to half-wave rectifier output using PIC16F's ADC? in MicrocontrollersI am just trying to read a signal generated from Signal generator. I have a 1N4148 diode connected in series (FB) with the signal line. The signal is...11 replies | 272 view(s)
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9th May 2019, 23:01Tiva TM4C123GH6PM controller? Or which Tiva or Stellaris controller. If Tiva/Stellaris then as you are using PORTF you need to unlock the port and...5 replies | 393 view(s)
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9th May 2019, 22:57baileychic started a thread How to read signal similar to half-wave rectifier output using PIC16F's ADC? in MicrocontrollersHow to read signal similar to half-wave rectifier output using PIC16F's ADC? I am using PIC16F1779 and need to read a signal similar to half wave...11 replies | 272 view(s)
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9th May 2019, 22:16yes there are - but for a variety of reasons, round wire works very well - unless you are doing 50/60Hz transformer design6 replies | 3543 view(s)
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9th May 2019, 20:11see post #6 ...29 replies | 3189 view(s)
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