Easy peasy
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Today, 04:21Easy peasy replied to a thread How to choose right PWM frequency for 3 phase ac motor in Power Electronicslook at the igbt's you will be using - read the data sheet carefully - compute the worst case conduction and switching losses at 20kHz - see...2 replies | 140 view(s) -
Today, 00:24If you ran the 555 off 12V - you could then direct drive a 700/800V mosfet with ease from the 555, - assuming you can common up the gnds on the...20 replies | 368 view(s)
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Today, 00:20Easy peasy replied to a thread LLC converter vs Dual cascaded Buck….1000V to 48V at 500W output…no isolation needed in Power Electronicsif the layout is symmetric and the fets/diodes the same - the odds are good that they will share to +/- 20% for fixed gate drive... how is you...18 replies | 497 view(s)
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Yesterday, 22:35the only way to operate under the inference that Vo = D. Vin ( for 1:1:1 turns ratio ) is to use heavy subbers on the mosfets and o/p diodes ...6 replies | 214 view(s)
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23rd January 2020, 22:23What happens when you include C8...?20 replies | 368 view(s)
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23rd January 2020, 02:22might be a good idea to break one open and draw a schematic of the inside - could be quite helpful...20 replies | 368 view(s)
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22nd January 2020, 23:10What electronics are inside the bulb? - just LED's in series or ...? ?20 replies | 368 view(s)
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22nd January 2020, 20:49Easy peasy replied to a thread LLC converter vs Dual cascaded Buck….1000V to 48V at 500W output…no isolation needed in Power ElectronicsSo, you want to patent the improved buck converter ? I can't quite see the "inventive step" - legal term - that you have created here ...? ...18 replies | 497 view(s)
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22nd January 2020, 20:37also note if you are rectifying 230V mains the push pull fets will see > 650Volts - so 800V min required ...6 replies | 213 view(s)
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22nd January 2020, 05:22PWM -> DC value converter ... with lower output impedance to drive the secret load ( lower than the 4k7 resistor used on the filter ...)6 replies | 307 view(s)
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22nd January 2020, 05:17Auxiliary power supply once the push pull starts - what powers the chip to provide the gate drive at cold start is not shown / not drawn / not...6 replies | 213 view(s)
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22nd January 2020, 03:03Easy peasy replied to a thread LLC converter vs Dual cascaded Buck….1000V to 48V at 500W output…no isolation needed in Power Electronics... and ... does it work in sim ... ?18 replies | 497 view(s)
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21st January 2020, 06:03baileychic replied to a thread three phase volt measurement using resistor network method in MicrocontrollersYour void GetVolt3() code is not good. It tries to find the peak value of voltages but that is only good for sinusoidal voltage. If your...11 replies | 590 view(s) -
21st January 2020, 03:42Easy peasy replied to a thread LLC converter vs Dual cascaded Buck….1000V to 48V at 500W output…no isolation needed in Power Electronics2 x 600V diodes with small snubbers across each, 47pF & 470 ohm should make the sim go ... - - - Updated - - - for 1kV in you probably...18 replies | 497 view(s)
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20th January 2020, 21:09Easy peasy replied to a thread LLC converter vs Dual cascaded Buck….1000V to 48V at 500W output…no isolation needed in Power ElectronicsIf you were going to do 2 x buck stages - you would have the same gate drive to each stage, this would give 1kV:220V:48V naturally Using SiC...18 replies | 497 view(s)
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20th January 2020, 17:08baileychic replied to a thread three phase volt measurement using resistor network method in MicrocontrollersThis is wrong. ADC_value= ((ADRESH<<8)+ADRESL); // Return 10 bit ADC value casting to 16-bit variable needed. ADRESH is a 8-bit...11 replies | 590 view(s)
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20th January 2020, 05:42you run the risk of frying the igbt - try a relay ... - - - Updated - - - p.s. you only need one triac - the other is redundant - also...15 replies | 631 view(s)
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20th January 2020, 01:49Easy peasy replied to a thread LLC converter vs Dual cascaded Buck….1000V to 48V at 500W output…no isolation needed in Power Electronics1000V to 48V, I would do this with 2 x 800V H bridges in series ( we have done up to 4 in series for 3.8kV in, 350Vout 40A ) I would...18 replies | 497 view(s)
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20th January 2020, 01:46are we doing home work for students now ... ?9 replies | 578 view(s)
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20th January 2020, 01:43if you have 2 equal currents 180 deg out of phase in a wire - the net current is zero - if there are in phase then the current is 2x - this...3 replies | 282 view(s)
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20th January 2020, 01:41There are a lot of hard switched H bridges up to 3.5kW ( and well above actually ) usually 20kHz for above 3.5kW and up to 50kHz below 3.5kW ...3 replies | 239 view(s)
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19th January 2020, 23:52Easy peasy replied to a thread Testing Amps on rewound microwave transformer in Elementary Electronic Questions... ... ... .17 replies | 944 view(s)
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19th January 2020, 01:17There is - or should be - no contradiction - you can use a very small amount of current mode control in an half bridge ( but not too much ..! - ...9 replies | 946 view(s)
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18th January 2020, 10:23baileychic replied to a thread Automatic Water Level Controller - Dynamic Dry-Run and OverLoad Current Calc Related in MicrocontrollersWhy there will be voltage / current spikes ifa MOV is put in parallel across the power line? I have one but not shown in the simulation. One MOV is...12 replies | 983 view(s)
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18th January 2020, 06:34Thamilarasan started a thread ADC Value gets changed when a Digital output enables in Power ElectronicsHi, I have designed a temp controller. The temp from the sensor is measured and amplified. I have an relay in my circuit. The relay is...2 replies | 297 view(s)
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18th January 2020, 04:38JohnDave replied to a thread Earth leakage Detection "positive" as well as "Negative" >30mA. in Professional Hardware and Electronics DesignHi ,Thank you very much I will try this and let you know the status . Thank you5 replies | 631 view(s)
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18th January 2020, 01:22Easy peasy replied to a thread Testing Amps on rewound microwave transformer in Elementary Electronic QuestionsThe current needs to be limited by a suitable load on the output of the Tx - if you apply a too low ohm load you will overload the Tx, this is...17 replies | 944 view(s)
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17th January 2020, 09:33Easy peasy replied to a thread Testing Amps on rewound microwave transformer in Elementary Electronic Questionsalso the pri of a uWave Tx has fewer turns than a conventional Tx - it runs very high peak flux and high peak magnetising current - as a result...17 replies | 944 view(s)
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17th January 2020, 09:00Easy peasy replied to a thread Earth leakage Detection "positive" as well as "Negative" >30mA. in Professional Hardware and Electronics Designhere you go :-5 replies | 631 view(s)
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17th January 2020, 03:15Easy peasy replied to a thread [SOLVED] LoopGain analysis with multiple feedback loop in Analog Circuit Design@ The Electrician - they are resistors -17 replies | 846 view(s)
About Easy peasy
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- founder MagnetPowerNZ Ltd
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- engineer
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