Easy peasy
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Today, 09:05a good idea to leave the diode as it is - keep things simple initially, it is fairly obvious the 1mH choke is part of the buck ckt.3 replies | 147 view(s) -
Today, 08:56Easy peasy replied to a thread can triacs rapidly switch AC into a transformer in Elementary Electronic Questionsyour approach is a little bit simplistic - you will need snubbers across the mosfet switch, and source referenced gate drive, you will get...7 replies | 162 view(s)
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Today, 08:10Easy peasy replied to a thread can triacs rapidly switch AC into a transformer in Elementary Electronic Questionsforced commutation was used to turn off SCR's ( mainly ) and triacs - however a lot of extra circuitry is required - then along came mosfets &...7 replies | 162 view(s)
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Today, 05:03you can't turn an SCR off once fired - so your ckt needs a xtor or mosfet - which you can turn off the SCR will stay on forever once triggered...3 replies | 147 view(s)
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Today, 03:47Easy peasy replied to a thread ELECTRICAL AND ELECTRONICS Instrumentation in Elementary Electronic QuestionsPMMC = permanent magnet moving coil - meter, I think all moving coil meters give an average reading... moving iron have expanded...5 replies | 126 view(s)
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14th July 2019, 22:26Easy peasy replied to a thread [SOLVED] Iron sheet laminated gapped core inductor variation in Elementary Electronic Questionsa random data sheet has no bearing on a gapped choke made using transformer steel, an old measuring device with unknown capacitor degradation - and...26 replies | 1055 view(s)
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14th July 2019, 08:58Easy peasy replied to a thread [SOLVED] Iron sheet laminated gapped core inductor variation in Elementary Electronic QuestionsBarkhausen noise would not rise to the level needed to seriously interfere with measurement at 50mV, the main issue with 50mV measurement is the...26 replies | 1055 view(s)
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14th July 2019, 08:47Easy peasy replied to a thread Does it exist an AC to AC converter in small package for converting 220v to 110v? in Power Electronicsthe word AND in the above quote makes the sentence incorrect, you can have the first 65 degC or the last in an half cycle - but not both - for...24 replies | 643 view(s)
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14th July 2019, 03:06Easy peasy replied to a thread [SOLVED] Iron sheet laminated gapped core inductor variation in Elementary Electronic Questionsthere is no published paper or article that says the slope or behaviour the BH curve at low excitation is any different to the slope/ behaviour at...26 replies | 1055 view(s)
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13th July 2019, 22:45Easy peasy replied to a thread [SOLVED] Iron sheet laminated gapped core inductor variation in Elementary Electronic Questionsthere is no evidence to support this - I have never observed this - it also goes against the principles of physics relating to magnetic materials.26 replies | 1055 view(s)
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13th July 2019, 22:35Easy peasy replied to a thread Does it exist an AC to AC converter in small package for converting 220v to 110v? in Power ElectronicsConduction angle is in fact about 65 degrees i.e. the first, or last 65 degrees of each half cycle, if you want 110V rms from 230Vrms - - -...24 replies | 643 view(s)
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12th July 2019, 22:29SMT & heat dissipation - always problematical ....25 replies | 964 view(s)
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12th July 2019, 06:02Easy peasy replied to a thread Half-bridge versus Full-bridge for Power Dense supplies? in Analog Circuit Designnope ... tisn't the rail splitting caps diverge quickly if you try to do current mode control and don't compensate for this ...9 replies | 399 view(s)
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11th July 2019, 01:35Unless you have a 200MHz scope and high quality scope probes - you may not see the true rise and fall times - have you calibrated your probes? ...25 replies | 964 view(s)
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11th July 2019, 00:14Is your choke heating your fets? - it may well be that the IC is damaged and can't drive them properly - I would expect <50nS rise and fall...25 replies | 964 view(s)
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10th July 2019, 23:40Easy peasy replied to a thread [SOLVED] Iron sheet laminated gapped core inductor variation in Elementary Electronic Questionsthat is exactly what I said ...26 replies | 1055 view(s)
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10th July 2019, 23:30Easy peasy replied to a thread Does it exist an AC to AC converter in small package for converting 220v to 110v? in Power Electronicssome what overkill. but: ...24 replies | 643 view(s)
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10th July 2019, 21:45Dear kripacharya, your post appears to show a limited understanding - minor shoot thru is caused by transient gate rise when the other device...29 replies | 935 view(s)
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10th July 2019, 21:18Easy peasy replied to a thread Half-bridge versus Full-bridge for Power Dense supplies? in Analog Circuit Designyou can't easily have current mode control with HB - so if you are seeking a tight dynamic loop - FB may be the better option.9 replies | 399 view(s)
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10th July 2019, 12:49Easy peasy replied to a thread Does it exist an AC to AC converter in small package for converting 220v to 110v? in Power Electronicsan auto - Tx is half the weight approx as you likely don't need isolation - if you get one on a toroid and heatsink the two sides - this will...24 replies | 643 view(s)
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7th July 2019, 22:21Easy peasy replied to a thread [SOLVED] Iron sheet laminated gapped core inductor variation in Elementary Electronic Questionshaving read the above - and, as some one who regularly designs iron cored chokes and transformers - there is a lot of mis-information in the...26 replies | 1055 view(s)
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6th July 2019, 07:41Easy peasy replied to a thread Unsure about this current sensor for use in saturation current measuring circuit. in Analog Circuit Designtight looping of cable will no doubt affect the accuracy - if you can have large diameter looping, say 300mm then such effects will be minimised4 replies | 334 view(s)
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5th July 2019, 23:02I meant for the OP to post the gate drive waveform - Swend even 10E for turn off R may be too high ..29 replies | 935 view(s)
About Easy peasy
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- Power Electronics
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- founder MagnetPowerNZ Ltd & Pwrtrnx.com
- Occupation:
- engineer
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