Easy peasy
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Today, 22:043856: pin 6 does not go to gnd, link 6 & 7 for a voltage follower29 replies | 1190 view(s) -
Today, 22:03Easy peasy replied to a thread Tip41c/42c arrangement problem in Hobby Circuits and Small Projects Problemsyou need to find xtors with much higher gain ...15 replies | 332 view(s)
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Today, 22:01Easy peasy replied to a thread Half-Bridge 0-30V, 0-20A Feedback loop problem in Analog Circuit Designlooks like your power supply source is running out of steam and supplying ripple to the input ...13 replies | 273 view(s)
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Today, 21:39Just an update for the thread. Adding a simulation screenshot showing the signals on the graph. Edit: I need to post an image and forum is not...9 replies | 212 view(s) -
Today, 11:31It was a lot of work to get the SBP, DBP and MAP readings on LCD and also the MAP signal on DAC. Finally the project is finished. The subject was...9 replies | 212 view(s)
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Today, 07:01you can easily work out the min slope comp you need above 50% duty cycle ( of maximum ) it has to be greater than half the inductor down slope (...2 replies | 102 view(s)
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Today, 06:14Easy peasy replied to a thread Tip41c/42c arrangement problem in Hobby Circuits and Small Projects ProblemsTIP41A 42A has fairly low current gain - so you are asking a lot to drive it direct from a 555 ( esp a CMOS one ) - this is one of those...15 replies | 332 view(s)
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Today, 01:37Easy peasy replied to a thread Buck/Boost Battery Charger works on dummy load, but does not charge batteries in Power ElectronicsSlow the soft start down so it takes ~2 sec to start, use the values in the app note for the control loop - i.e. the slower ones52 replies | 1394 view(s)
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Yesterday, 22:19Easy peasy replied to a thread Half-Bridge 0-30V, 0-20A Feedback loop problem in Analog Circuit DesignfLC - which is the only freq of interest in the power ckt ( apart from output ESL/ESR with C i.e. self res )13 replies | 273 view(s)
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Yesterday, 22:14reading data sheets and app notes for oneself can be very instructive ...11 replies | 193 view(s)
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Yesterday, 10:36easy - some 5W zeners on the DC lines ...11 replies | 193 view(s)
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Yesterday, 00:04Easy peasy replied to a thread Buck/Boost Battery Charger works on dummy load, but does not charge batteries in Power Electronicsplease post the schematic of the control loop bits - as it is built right now - I suspect a poorly soldered R or C - or cooked/cracked C or...52 replies | 1394 view(s)
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13th June 2019, 22:07Easy peasy replied to a thread Half-Bridge 0-30V, 0-20A Feedback loop problem in Analog Circuit Designstart with 3x slower than the o/p filter ...13 replies | 273 view(s)
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13th June 2019, 22:02Easy peasy replied to a thread Buck/Boost Battery Charger works on dummy load, but does not charge batteries in Power Electronicscheck your schematic / new board for basic errors - e.g. wires crossed over - you may have cooked or cracked a chip R or C in the new build ...52 replies | 1394 view(s)
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13th June 2019, 10:37Easy peasy replied to a thread Half-Bridge 0-30V, 0-20A Feedback loop problem in Analog Circuit Designshunt resistor should be before the o/p filter caps - else you have an extra delay in the current loop you don't need ... - - - Updated - - - ...13 replies | 273 view(s)
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13th June 2019, 09:55Got correct SBP, DBP, and MAP. I messed up the variables inside ADC ISR but got it working. MAP signal in simulation is also okay. I used 1 Hz half...9 replies | 212 view(s)
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13th June 2019, 08:48Easy peasy replied to a thread Half-Bridge 0-30V, 0-20A Feedback loop problem in Analog Circuit DesignPin 10 can be used for cycle by cycle current limiting on the 3525 & 3525A ....13 replies | 273 view(s)
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13th June 2019, 08:38perhaps you need to read the data sheet more closely - it clearly states 1100VDC P-N for 2 sec, and other ratings for P->E 2000Vac and ...11 replies | 193 view(s)
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13th June 2019, 08:10impossible to tell - the golden rule of EMC compliance is: start with everything you can fit ....11 replies | 193 view(s)
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13th June 2019, 07:42No. 2 includes No.1 so both is implied in your post.11 replies | 193 view(s)
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13th June 2019, 07:34sounds like you are on the right path ...11 replies | 193 view(s)
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13th June 2019, 07:31Easy peasy replied to a thread Half-Bridge 0-30V, 0-20A Feedback loop problem in Analog Circuit Designmay not be feedback loop - per se - if you have a buck derived converter ( includes, half bridge, full bridge, push pull ) then you will need...13 replies | 273 view(s)
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13th June 2019, 07:15I changed the code and used ADC interrupt to read sensor data continuously to get SBP and DBP but they are not working as required. How to get the...9 replies | 212 view(s)
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13th June 2019, 02:40Kamoden 360-TRCX simple analog hfe tester2 replies | 1034 view(s)
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13th June 2019, 01:24Easy peasy replied to a thread Buck/Boost Battery Charger works on dummy load, but does not charge batteries in Power ElectronicsC39, 40, 41,43 would seem to be useful if fitted - worth trying before posting. I see the gate drive lines are more or less under the I...52 replies | 1394 view(s)
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12th June 2019, 23:58Easy peasy replied to a thread Buck/Boost Battery Charger works on dummy load, but does not charge batteries in Power ElectronicsIf D3 gets warm then the associated fets are not doing their job - very hard to help any further from a distance - but layout is everything - ...52 replies | 1394 view(s)
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12th June 2019, 20:521) "at low levels of noise" esp in the presence of CM radiation 2) not good to believe everything you stumble across on the internet - ...13 replies | 308 view(s)
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12th June 2019, 19:49Upper resistor 27k Lower resistor 3.3k ADC connected across 3.3k.13 replies | 274 view(s)
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12th June 2019, 18:47Then what is the easiest method to get SBP, DBP, and MAP? How can wave cut before reaching the minimum? What reasons for it? Edit: Should I...9 replies | 212 view(s)
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12th June 2019, 17:40If this is the Pressure wave then how to read and find out SBP and DBP? http://pixhost.to/show/140/110830428_cnap-co-pulsewave-analysis.png9 replies | 212 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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