Easy peasy
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Today, 07:18Easy peasy replied to a thread Inductance of coile dup cbale on winch (twisted pair or just two strand) in Power Electronicsagreed - twisted pair and side by side is essentially the same thing, for send & return coiling has no effect ... - - - Updated - - - as to...2 replies | 141 view(s) -
Today, 07:16transformer design and phasing of windings is critical to the flyback circuit working - as is making sure the feedback is working before applying...3 replies | 105 view(s)
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Yesterday, 23:03Easy peasy replied to a thread Rectifier diodes with bypass capīs & gounding speaker basketīs in Hobby Circuits and Small Projects Problemsif you are happy putting snubbers across the 15Vac - then go for it ...41 replies | 3701 view(s)
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Yesterday, 10:37there is no limit on the duty cycle if the feedback, via opto, does no work properly. There is a 36V zener inside the chip on the Vcc line - but...28 replies | 363 view(s)
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Yesterday, 10:23the problem here is lack of cognitive function, without a zener the Vcc will be exceeded if the IC does not start ....28 replies | 363 view(s)
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Yesterday, 10:13Simple logic tells you that if the IC fails through over-voltage it is likely that over-voltage will make it to the gate pin, holding the fet on, ...28 replies | 363 view(s)
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Yesterday, 09:41OK - it's pretty ugly gate drive - but cannot say more without a schematic ...69 replies | 3505 view(s)
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Yesterday, 09:40As above - there is no zener to limit the volts on the chip supply ....28 replies | 363 view(s)
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Yesterday, 04:55temp rise is a function of the watts dissipated in the Tx and the surface area and shape of the Tx and any cooling air flow - there is no simple...13 replies | 292 view(s)
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Yesterday, 04:46Sorry but none of the documentation provided helps to solve your issue - schematic please - it could be that you are running off an isolated...28 replies | 363 view(s)
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21st February 2020, 21:46R = rho. L / Area is what an engineer would use, watts dissipated = R . i^2 ( for rms current in the wire ) then there is an added...13 replies | 292 view(s)
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21st February 2020, 21:43I wouldn't worry about that too much - - is that the gate drive ... ?69 replies | 3505 view(s)
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21st February 2020, 21:40Easy peasy replied to a thread Please help power supply dead 110V to 24vdc 5vdc in Service Manuals, Requests, Repair Tipsntc could have gone open ckt - but more likely the low power ckt supplying the IC has died - hence the IC dead & main mosfet check o/p diode...7 replies | 242 view(s)
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21st February 2020, 21:38you need to post the schematic - you are doing something wrong - but the magic crystal ball is clouded over by lack of real information ...28 replies | 363 view(s)
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19th February 2020, 22:17Easy peasy replied to a thread common mode feedback question in Analog Integrated Circuit (IC) Design, Layout and Fabrication- another assumption unless the op-amp is ac coupled with a capacitor - it will act down to DC ...8 replies | 329 view(s)
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19th February 2020, 22:12Mica and thermal paste is not rated for more than 100V, so check the insulation to the heat-sink in case you knocked it and things got shorted out...69 replies | 3505 view(s)
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19th February 2020, 20:58Easy peasy replied to a thread common mode feedback question in Analog Integrated Circuit (IC) Design, Layout and Fabrication- you are making a big assumption - based on what exactly ...?8 replies | 329 view(s)
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19th February 2020, 15:58how are you heatsinking the fets?69 replies | 3505 view(s)
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19th February 2020, 09:42To attenuate the switching noise of the converter the C would have to be on the left of the L, as it is the filter is filtering what is coming thru...8 replies | 284 view(s)
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19th February 2020, 07:51Actuarrrly, the Zo of that filter is 0.22 ohms - so 0.3 ohms is just a bit higher than critically damped ( i.e. less damped )8 replies | 284 view(s)
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19th February 2020, 03:49Yup - mainly to stop ringing at 1uH, 20uF 35.5kHz ...8 replies | 284 view(s)
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18th February 2020, 21:49Yes output diodes are typically those diode on the output side of the transformer ...69 replies | 3505 view(s)
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18th February 2020, 10:19JohnDave started a thread Designing Inductor for designing of buck boost converter of 50W in Power ElectronicsHi, I am designing Buck-boost converter of 50W capacity and I am curious to learn to design Inductor for it and selecting capacitor value. So, what...2 replies | 189 view(s)
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18th February 2020, 09:20yes, a snubber is an R in series with a cap.69 replies | 3505 view(s)
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18th February 2020, 08:30Start with 470pF 1kV cap and 47 ohm 3 watt R across each fet, D-S - - - Updated - - - and, 330pF, 1kV cap and 680 ohm 3W across...69 replies | 3505 view(s)
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17th February 2020, 21:43you recall incorrectly ... tuning, as such, was only ever required if you wished to get close to minimum current ripple on the coupled...23 replies | 803 view(s)
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17th February 2020, 09:12Isolated PFC Cuk @ 3kW is only for the power electronics engineer with 15+ years of solid experience ...23 replies | 803 view(s)
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17th February 2020, 07:32split core CT will easily go over any line, also there is a device that slides on a line to measure joint resistance ....2 replies | 178 view(s)
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17th February 2020, 05:11baileychic replied to a thread Glow LED on specified counter values 0-500 in 89c52 uC in MicrocontrollersPost your circuit and also your Keil complete project files. Also, mention what is your Crystal frequency, 12MHz, 11.0592MHz,...?30 replies | 1174 view(s)
About Easy peasy
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- Power Electronics
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- Biography:
- founder MagnetPowerNZ Ltd
- Location:
- Melbourne
- Occupation:
- engineer
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