Easy peasy
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Today, 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...4 replies | 163 view(s) -
Today, 09:00Easy peasy replied to a thread Earth leakage Detection "positive" as well as "Negative" >30mA. in Professional Hardware and Electronics Designhere you go :-4 replies | 273 view(s)
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Today, 03:15Easy peasy replied to a thread LoopGain analysis with multiple feedback loop in Analog Circuit Design@ The Electrician - they are resistors -5 replies | 222 view(s)
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Yesterday, 02:19Easy peasy replied to a thread Need to reduce drain voltage spike in LM5019 Buck converter in Power Electronicsif you short your "probe" on the Vin line and still see the spikes - you know it is the probing system - you can subtract the artifact spikes...4 replies | 195 view(s)
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15th January 2020, 21:56Easy peasy replied to a thread Need to reduce drain voltage spike in LM5019 Buck converter in Power Electronicscould be partially your scope - see how you have a spike on the current - where no spike should be - e.g. at turn off the current simply cannot...4 replies | 195 view(s)
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15th January 2020, 05:26Easy peasy replied to a thread [SOLVED] Need very basic R-C "delay off" circuit in Hobby Circuits and Small Projects Problemsyes - for a fast turn on the diode points to the base of the Darlington, i.e. cathode to base ...7 replies | 354 view(s)
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15th January 2020, 05:24Easy peasy replied to a thread Earth leakage Detection "positive" as well as "Negative" >30mA. in Professional Hardware and Electronics Designyou set up a balanced 30mA using a class B amp structure with the earth in the middle - that way if either the + or - is pulled to earth by...4 replies | 273 view(s)
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15th January 2020, 01:33Easy peasy replied to a thread Regulating temperature of mains connected heating element: Skipping mains half cycles in Power ElectronicsSo you want full cycles of control ( 20mS for 50Hz ) or multiples thereof, zero crossing detect opto coupler and a ckt that keep the firing on for...32 replies | 1776 view(s)
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14th January 2020, 23:16Easy peasy replied to a thread [SOLVED] Need very basic R-C "delay off" circuit in Hobby Circuits and Small Projects Problemsacross the timing resistor 220k, if you apply 3v3 or 5V to the 220k it will take a while for the volts to come up to 1.1V necessary to turn on...7 replies | 354 view(s)
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14th January 2020, 08:11here you go, this link contains schematics that will supply what you want ... ...2 replies | 180 view(s)
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14th January 2020, 08:01Easy peasy replied to a thread [SOLVED] Need very basic R-C "delay off" circuit in Hobby Circuits and Small Projects Problemsif you use darlington connected xtors (bjt's) to turn on the relay, emitter gnded, then you can have 4u7 on the base to gnd and 220k drive...7 replies | 354 view(s)
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14th January 2020, 03:52Easy peasy replied to a thread Regulating temperature of mains connected heating element: Skipping mains half cycles in Power ElectronicsMost 1st world countries require that the net average DC over a 24 hour period be 5mA or less - this to prevent earth stake corrosion If you draw...32 replies | 1776 view(s)
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13th January 2020, 02:04agreed - you need a peak power ckt to draw the max from the panels ( even on on a sunny day ) and batteries to store (hopefully) the excess so...5 replies | 440 view(s)
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12th January 2020, 02:36Easy peasy replied to a thread Resistor at input to high side current monitor IC in Elementary Electronic Questions"Transient Protection Add a protection resistor (RP) in series with the LOAD pin if VSENSE can exceed 5.0V in positive sense or 600mV in negative...3 replies | 300 view(s)
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11th January 2020, 10:21if you measure the high side gate drive w.r.t. 0v then you will see the totem pole shift + the gate drive signal ... - - - Updated - - - you...22 replies | 1550 view(s)
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10th January 2020, 09:45Easy peasy replied to a thread [SOLVED] Technique behind the Charging and Inverting Function of an Inverter in Power Electronicsyou cannot use the same Tx to charge the battery without some sort of boost circuit to raise the output of the rectified low voltage winding ...6 replies | 428 view(s)
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10th January 2020, 09:09look up "boost converters" used a lot in transformerless grid tied inverters to step up the PV panels to 380VDc for inversion to 230Vac ...5 replies | 440 view(s)
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10th January 2020, 09:06Seems unlikely you will get 3kW continuous through an ETD54 at 50kHz - what is your calc Bpk under these conditions? Usual way to stop flux...7 replies | 393 view(s)
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9th January 2020, 11:16What is your Crystal frequency? 11.0592MHz or 12MHz?16 replies | 743 view(s) -
9th January 2020, 09:25baileychic replied to a thread How to assign bit values at once to different port pins of different I/O ports? in MicrocontrollersTry this but not tested. #define myPortA LATA typedef struct { uint8_t B0:1; uint8_t B1:1; uint8_t B2:1; uint8_t B3:1;7 replies | 423 view(s)
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9th January 2020, 09:21Okay? And what should be the PWM frequency? Can I choose any PWM frequency between 500 Hz and 2kHZ?16 replies | 743 view(s)
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9th January 2020, 08:58How are you going to vary the PWM duties in your final device? Using a button to increment and another one to decrement? And between 50 to 100%...16 replies | 743 view(s)
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9th January 2020, 08:38What duties PWM do you want? Are they are some fixed duties or do you want 0% to 100% variable duties?16 replies | 743 view(s)
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8th January 2020, 12:23baileychic replied to a thread Automatic Water Level Controller - Dynamic Dry-Run and OverLoad Current Calc Related in MicrocontrollersForgot to mention. My code works for mains frequency 40Hz to 80Hz.10 replies | 728 view(s)
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8th January 2020, 00:38baileychic replied to a thread Automatic Water Level Controller - Dynamic Dry-Run and OverLoad Current Calc Related in MicrocontrollersFinished the simulation. Have to test more. Made a quick simulation video. Will make PCB Layout today and get one assembled board manufactured...10 replies | 728 view(s)
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6th January 2020, 12:05baileychic replied to a thread Automatic Water Level Controller - Dynamic Dry-Run and OverLoad Current Calc Related in MicrocontrollersYes, I am considering 7 times nominal current and so 6A * 7 = 42A and so I am using a 50A type ACS758 sensor. Is my method correct? How to use the...10 replies | 728 view(s)
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6th January 2020, 07:22Easy peasy replied to a thread 16A 250V switch rated for 10000 ops at mains peak or zero cross? in Elementary Electronic Questionsall AC switches arc - obviously more for higher currents and higher L in series - if the contacts open quick enough ( quality AC switch ) then as...7 replies | 533 view(s)
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5th January 2020, 22:33baileychic started a thread Automatic Water Level Controller - Dynamic Dry-Run and OverLoad Current Calc Related in MicrocontrollersI am doing a automatic water level controller using PIC18F46K22 which also monitors mains voltage and pump current and controls the Pump. I...10 replies | 728 view(s)
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5th January 2020, 02:51Easy peasy replied to a thread Is this the reason there's so few 2 Transistor Fwd Sync Rect controllers? in Power ElectronicsNew chips generally require a lot of development time - as the companies supplying them simply do not test them in the way a real application does...3 replies | 385 view(s)
About Easy peasy
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- founder MagnetPowerNZ Ltd
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- Melbourne
- Occupation:
- engineer
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