Easy peasy
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Yesterday, 10:04I can help you with your project. You really need to use a delimiter at the end of each UART command transmission which controls the output of the...2 replies | 194 view(s) -
Yesterday, 09:12Easy peasy replied to a thread Extracting energy from gyroscope precession in Mathematics and Physicsany precession will necessarily be slow ... (?) thus the ability to get energy from it is limited. One assumes you are not talking about the...5 replies | 262 view(s) -
Yesterday, 09:09Easy peasy replied to a thread Micro controller affected by ripple from bldc motor in Power Electronicslarger turn on resistors usually a good place to start, 47E or larger ...9 replies | 393 view(s)
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Yesterday, 06:45It is because of using delays in the main loop where the 7 Segment display codes are also called. It is time for you to learn how to multiplex 7...3 replies | 107 view(s)
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Yesterday, 04:13e.g. SMBJ120A x 4 on the HVDC3 replies | 126 view(s)
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Yesterday, 01:40inrush startup SCR most likely ... turn off time of common scr = 10uS4 replies | 245 view(s)
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Yesterday, 01:351200 V according to data sheet - for a very short time ( the applied test pulse is very short ) - the volts at the bridge depend on the amount...3 replies | 126 view(s)
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13th September 2019, 22:35Easy peasy replied to a thread Is it possible to make an IGBT to work at duty cycles up to 100%? in Power ElectronicsThat gate driver: the Semikron SKYPER 32R can be run at 100% on time for the upper IGBT, we have made many hysteretic controllers for 50kVA ...16 replies | 568 view(s)
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13th September 2019, 22:25if you are using a small diode in a switching ckt and the data sheet does not give switching information, then you use it at your own risk, other...4 replies | 288 view(s)
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12th September 2019, 06:23usually specified on the data sheet, e.g. 125 degC and If = 30A, and dIf/dt = 100A/us ( quite slow ) etc you have to read all the fine...4 replies | 288 view(s)
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11th September 2019, 10:26Easy peasy replied to a thread Is it possible to make an IGBT to work at duty cycles up to 100%? in Power Electronicsshort answer = yes, as long as the load can handle the current, and the IGBT, and the source ...16 replies | 568 view(s)
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11th September 2019, 06:55Easy peasy replied to a thread Flyback SMPS power MOSFET getting hot? uc3843 pwm converter in Power Electronicsyou'll find there is the same gap in the centre leg of the core too - sometimes only in the centre limb ... - - - Updated - - - if you...17 replies | 490 view(s)
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10th September 2019, 19:56Easy peasy replied to a thread Flyback SMPS power MOSFET getting hot? uc3843 pwm converter in Power Electronicsflyback Tx needs to have correct air gap, it is a storage and release transformer - all the energy per pulse is stored in the air gap ...17 replies | 490 view(s)
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9th September 2019, 22:17Easy peasy replied to a thread 3 phase 4 wire(480V) AC to 12VDC (100mA) power supply for energy metering application in Power ElectronicsTo do this properly you need to rectify the 3 phases ( and the neutral - so 8 diodes ) and then use a flyback to generate the isolated 12V ( or...9 replies | 352 view(s)
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9th September 2019, 00:35Easy peasy replied to a thread Looking for a suitable DC -DC buck conveter topology in Power Electronicsit is not isolated ....16 replies | 666 view(s)
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8th September 2019, 03:02Easy peasy replied to a thread Well regulated mains to large cities in Elementary Electronic Questions4,320,000.007 replies | 423 view(s)
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8th September 2019, 02:57Easy peasy replied to a thread Micro controller affected by ripple from bldc motor in Power ElectronicsAlso your power ckt is not shown - so hard to offer cogent advice ..9 replies | 393 view(s)
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8th September 2019, 02:54That's fine for mouse power - but it doesn't scale ...4 replies | 245 view(s)
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7th September 2019, 11:51Easy peasy replied to a thread Looking for a suitable DC -DC buck conveter topology in Power Electronicsthat transformer is not good for much ...16 replies | 666 view(s)
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7th September 2019, 04:12Easy peasy replied to a thread Reducing radiated emissions in an offline flyback SMPS transformer in Power ElectronicsThe best way to reduce emissions is to go to a resonant flyback ...6 replies | 402 view(s)
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7th September 2019, 04:09Easy peasy replied to a thread Flyback SMPS power MOSFET getting hot? uc3843 pwm converter in Power ElectronicsAt 100kHz, Bmax <= 0.1 T at 50 kHz, Bmax < 0.12T17 replies | 490 view(s)
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7th September 2019, 03:50you need to pack cotton wool or sinilar around your resistor at these very low dissipation levels to trap the heat and hence get a temp rise that you...3 replies | 219 view(s)
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7th September 2019, 03:43Easy peasy replied to a thread Looking for a suitable DC -DC buck conveter topology in Power ElectronicsFrom your transformer diagram - you have a pri wdg and a sec wdg ( centre tap ) for the power transfer and then an auxilliary wdg on each side too...16 replies | 666 view(s)
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6th September 2019, 11:10Easy peasy replied to a thread Flyback SMPS power MOSFET getting hot? uc3843 pwm converter in Power Electronicsit needs a heatsink ...!17 replies | 490 view(s)
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6th September 2019, 07:28I can provide you a working code but only mikroC PRO PIC code if you are interested and if you can port it to your XC8 code because I don't use XC8...8 replies | 421 view(s)
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6th September 2019, 03:21Easy peasy replied to a thread [moved] Switch mode power supply interview question and response...bluffing? in Power ElectronicsNo slope comp needed in volt mode converter - but you do use the Vin to modulate the ramp to the same effect ( iron out 100Hz ripple on Vin) ...3 replies | 271 view(s)
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6th September 2019, 01:42Easy peasy replied to a thread Looking for a suitable DC -DC buck conveter topology in Power ElectronicsWell spotted Mr Schmitt trigger, the OP does call for fully isolated apparently, so yes, push pull, half or full bridge are good...16 replies | 666 view(s)
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6th September 2019, 01:14Easy peasy replied to a thread [SOLVED] Inductor quality value for switching regulators in Elementary Electronic QuestionsI can't really agree with that, AC resistance is affected greatly by proximity effect in a coil of wire. for a single straight wire, AC...44 replies | 2136 view(s)
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5th September 2019, 11:50Easy peasy replied to a thread Looking for a suitable DC -DC buck conveter topology in Power ElectronicsI have yet to see one that works very well, or has the same self shielding as, say, 2 x RM14 cores ... a lot of these papers never consider...16 replies | 666 view(s)
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5th September 2019, 10:32Easy peasy replied to a thread Looking for a suitable DC -DC buck conveter topology in Power Electronicsyou are missing the diodes on the LH side for a buck converter ( interleaved ) with the diodes added the ckt will work OK and meet your specs ...16 replies | 666 view(s)
About Easy peasy
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- founder MagnetPowerNZ Ltd
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- engineer
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