baileychic
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Yesterday, 18:19What are the other better ways?31 replies | 1362 view(s)
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Yesterday, 15:18I have one more issue. I have a parameter named Accuracy for weight. It has three options 1, 2 and 5. How to implement these? 1. If set...31 replies | 1362 view(s)
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Yesterday, 02:02control loop / feedback components / freq comp - should all be done on the LT4430, main control IC should be unity follower. - - - Updated -...48 replies | 2388 view(s) -
Yesterday, 02:00you can never get Vce < Vbe in common emitter config. For max Hfe at a given Ic you need to carefully select a xtor from its data sheet, Hfe...9 replies | 230 view(s)
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16th August 2019, 20:56Just a note on reading english, 10 ohm to each fet means just that, not a fet pair, similarly for fet snubbers, 15nF & 6.8 ohm across each fet, ...48 replies | 2388 view(s)
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16th August 2019, 12:35Easy peasy replied to a thread Pulse transformer output measured vs. calculated? in Power ElectronicsAir core xfmr's are notorious for very high magnetising current loading the driving voltage ( i.e. pulling it down), and not so great coupling to...9 replies | 222 view(s)
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16th August 2019, 12:30Easy peasy replied to a thread [SOLVED] Center tapped transformer (forward converter) in Power Electronicsfor such mismatched loads - the proposed ckt is not such a good idea ... buck ckt off the 24V to derive the 12v would be better ...7 replies | 253 view(s)
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15th August 2019, 21:21Easy peasy replied to a thread LTC4020 not regulating, blowing sense resistors during debug in Power Electronicsyou may need to have a power supply that can supply lot more current to keep the ckt working - try adding 1000uF or more, temporarily to the...6 replies | 219 view(s)
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15th August 2019, 20:54Try and put at least 4u7 from the CT, centre tap, of the LV side to gnd, this wdg should be near the fets, this gives turn off current some...48 replies | 2388 view(s)
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15th August 2019, 00:55Easy peasy replied to a thread LTC4020 not regulating, blowing sense resistors during debug in Power ElectronicsCurrent sensing is very important - read the data sheet carefully on using caps to filter the signal ... reading the whole datasheet very...6 replies | 219 view(s)
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15th August 2019, 00:52Easy peasy replied to a thread [SOLVED] magnet wire parasitic properties in Elementary Electronic Questionscapacitance varies heavily with winding structure ...! there is no magic figure ...5 replies | 178 view(s)
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15th August 2019, 00:25the choke that goes to the mid point of the o/p caps - correct ... Sensing Vout from the midpoint is a bad idea. a 10E resistor to each...48 replies | 2388 view(s)
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14th August 2019, 20:55for your new ckt choke needed only in the neg line, you diodes will have to be 1200V at least due to rev rec spikes - 2 x 800V in series...48 replies | 2388 view(s)
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14th August 2019, 09:34Easy peasy replied to a thread Determine the power of the ferrite ring in its dimensions in Power Electronicsput 5 turns on it and measure the L, from that you can work out the Ur, if it is quite high ( > 3000 ) it is likely a common mode choke material...1 replies | 132 view(s)
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14th August 2019, 02:21Easy peasy replied to a thread Mutual Inductance between two toroids Coils? in Analog Circuit Designif the RF current xfmrs are toroidal with complete windings all round the toroid - then there is very little external field and the CT's can be...2 replies | 134 view(s)
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14th August 2019, 02:19Easy peasy replied to a thread Calculating switching losses of a mosfet when switching energy is not given in Elementary Electronic Questionstypically in a circuit with an inductive load, the current must rise to full value before the volts across the device turning on can fall - so...6 replies | 254 view(s)
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14th August 2019, 02:12Easy peasy replied to a thread Single conductor inside hollow conductor in Elementary Electronic Questions13 Turns on a steel core will give you a much better indication @ 50Hz25 replies | 762 view(s)
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14th August 2019, 01:52Easy peasy replied to a thread 1 minute vs 1 second isolation voltage test for isolated offline SMPS transformer in Power ElectronicsIEC61558 has been withdrawn - it is no longer an applicable standard - from my recent information received.17 replies | 621 view(s)
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13th August 2019, 04:57Easy peasy replied to a thread Single conductor inside hollow conductor in Elementary Electronic Questions50 Hz is way too low for 13 turns on an unknown core size for ferrite Bpk < 0.3T Bpk = Erms /( 4.44 F. N Ae ) for...25 replies | 762 view(s)
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12th August 2019, 22:29Easy peasy replied to a thread 1 minute vs 1 second isolation voltage test for isolated offline SMPS transformer in Power ElectronicsThey list the standards in the data sheet - it is a matter of reading same.17 replies | 621 view(s)
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12th August 2019, 02:43Put the npn on the top and the pnp on the bottom and you have an emitter follower, tie the bases together and use 100R resistor - for a 5V...6 replies | 220 view(s)
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12th August 2019, 02:41Easy peasy replied to a thread 1 minute vs 1 second isolation voltage test for isolated offline SMPS transformer in Power ElectronicsThe whole reason for the 1 second test - at the higher voltage - is speed of manufacture, over the 1 min test. The voltage is scaled up (...17 replies | 621 view(s)
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11th August 2019, 04:06Easy peasy replied to a thread 1 minute vs 1 second isolation voltage test for isolated offline SMPS transformer in Power Electronicsthe 3mA is capacitive current - not necessarily leakage - usually the test is 2750 for 1 min or 3750 for 1 sec & 3750 for 1...17 replies | 621 view(s)
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11th August 2019, 04:01Easy peasy replied to a thread Single conductor inside hollow conductor in Elementary Electronic Questions@wwfeldman, EMF is measured in volts, and the voltage of a system is the electro motive force, there is no edict that says that volts only...25 replies | 762 view(s)
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9th August 2019, 09:12thannara123 replied to a thread One audio (Stereo ) master transmitter to multple audio reciver. in MicrocontrollersCan i make it or may i get the details 900MHz based one ? - - - Updated - - - As the above experts suggestion i concluded that it can be make...11 replies | 578 view(s) -
8th August 2019, 11:42You can see a drop down box in the screenshot that you have posted. In that select the .c file that is the main source file and debug.2 replies | 193 view(s)
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8th August 2019, 08:10as to in phase - I meant rather in synchronism, as in constant phase difference, so 45kV peak and 6500 Apk ... ?16 replies | 373 view(s)
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8th August 2019, 06:28Easy peasy replied to a thread Single conductor inside hollow conductor in Elementary Electronic Questionscan you tell me the distinct difference please? without using " back - emf "25 replies | 762 view(s)
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8th August 2019, 06:24Why not just have a buck converter off the 48V to 24V - much less issues ...?3 replies | 183 view(s)
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7th August 2019, 22:06Easy peasy replied to a thread Single conductor inside hollow conductor in Elementary Electronic QuestionsThe post was very clear: i.e. voltage is applied to the ends of the inner conductor, therefore current flows in the inner conductor - ...25 replies | 762 view(s)
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