FvM
Super Moderator
Find latest posts
View Articles
View Blog EntriesMini Statistics
- Join Date
- 22nd January 2008
- Last Activity
- Today 00:26
- Blog Entries
- 0
More 128 Friends
1 Groups
Join Groups 0 Permission Groups
FvM is not a member of any public groups
Awards
1st Helpful MemberAchievements
7 years registeredRecent Visitors
- amona,
- Cesar0182,
- EltonBrasil,
- firasgany7,
- Kartikpatel,
- Neelsama,
- pancho_hideboo,
- sjaikumar,
- std_match,
- wondrous
- Tab Content
- FvM's Activity
- About Me
- Friends
- Experience
-
Older Activity
-
Today, 00:22FvM replied to a thread Switch +/- 15v supply for audio preamp in Hobby Circuits and Small Projects ProblemsDo you need isolation between SPI and supply switches? If not, there are simpler solutions than optoMOS.5 replies | 251 view(s) -
Today, 00:05FvM replied to a thread $freq while using AC analysis to access lookup table in Analog Circuit DesignForgot to mention the circuit analysis tool.2 replies | 143 view(s)
-
Today, 00:00The circuit is rather unclear because you are showing less than half of the DC/DC pins. Each converter has two input and three output pins.2 replies | 98 view(s)
-
Yesterday, 19:45See below an example of plotting transistor capacitances over Vds in Ltspice.7 replies | 243 view(s)
-
Yesterday, 13:25Im under the impression, you are trying to drag on the thread without ever looking into the 18F2550 datasheet Simply notice that the PLL has...4 replies | 234 view(s)
-
Yesterday, 13:18Please some more snippets of specification. Waveform, rise-/falltime, pulse width, magnitude, just to mention a few parameters.5 replies | 203 view(s)
-
Yesterday, 13:13FvM replied to a thread Multiple pulse width ( 5 pulses ) inverter and lowest low order harmonics in Mathematics and PhysicsYes, exactly.17 replies | 589 view(s)
-
Yesterday, 10:18RF should be ok then.12 replies | 559 view(s)
-
Yesterday, 10:13FvM replied to a thread Difference circuit not acting as expected in Analog Integrated Circuit (IC) Design, Layout and FabricationLooks like single supply OP in saturation.3 replies | 146 view(s)
-
Yesterday, 09:25FvM replied to a thread Multiple pulse width ( 5 pulses ) inverter and lowest low order harmonics in Mathematics and PhysicsSorry for lack of clarity. r1,f1 etc. are the edge times (rising 1, falling 1,...) in rad. To get the full picture, you should review the original...17 replies | 589 view(s)
-
18th November 2019, 23:58FvM replied to a thread Multiple pulse width ( 5 pulses ) inverter and lowest low order harmonics in Mathematics and PhysicsThe emphasis of the presented results is on the feasibility of harmonic cancellation over a certain magnitude range. I'm assuming that this solution,...17 replies | 589 view(s)
-
18th November 2019, 19:13Crystal oscillator output has DC bias of Vcc/2, RF in bias is unknown. Where is it connected to? Use capacitor to clock oscillator DC bias. It's...12 replies | 559 view(s)
-
18th November 2019, 17:26For correct double balanced mixer operation (e.g. achieving the specified LO to IF isolation), RF and LO inputs must be DC free. According to your...12 replies | 559 view(s)
-
18th November 2019, 16:24dpaul replied to a thread Using a BFM in system verification code. in ASIC Design Methodologies and Tools (Digital)Did you consult the *_user_manual.pdf that comes with the download? You have written the master module, so you need to use the BFM as a slave. ...6 replies | 309 view(s) -
18th November 2019, 15:56Can't comment unknown measurements.16 replies | 396 view(s)
-
18th November 2019, 12:26FvM replied to a thread asynchronous D Flip flop with negative edge triggered clk,set and reset in ASIC Design Methodologies and Tools (Digital)Can you please clarify which hardware should be represented by the equation? I'm not able to read a physical sense into it.2 replies | 162 view(s)
-
18th November 2019, 12:22FvM replied to a thread Transformer Phase shift used in isolated zero crossing detectors in Power ElectronicsA voltage measuring transformer with specified accuracy class will show lower phase error, but be much more bulky. See...4 replies | 165 view(s)
-
18th November 2019, 12:14FvM replied to a thread Multiple pulse width ( 5 pulses ) inverter and lowest low order harmonics in Mathematics and PhysicsI get the below shown edge timing for cancellation of 3/5/7/9th harmonic. Time scale is rad. Magnitudes without the 4a/pi factor. I have set an...17 replies | 589 view(s)
-
18th November 2019, 11:24FvM replied to a thread "RS-232 port to transfer data to PC for analysis" in Software Problems, Hints and ReviewsO.k., if your protocol includes CRC, it will be transported through MCP bridge like any other data. So what are you specifically asking about CRC and...13 replies | 585 view(s)
-
18th November 2019, 11:17FvM replied to a thread How can I measure AC current with ~500 kHz frequency? in Analog Circuit DesignVoltage dividers have to be compensated for high frequency measurements. There are a few high performance benchtop DMM with MHz frequency range....6 replies | 226 view(s)
-
18th November 2019, 11:00Workaround for what? We are apparently seeing a real start transient. Unfortunately you didn't mention the test conditions.16 replies | 396 view(s)
-
18th November 2019, 10:03FvM replied to a thread Multiple pulse width ( 5 pulses ) inverter and lowest low order harmonics in Mathematics and PhysicsAs mentioned before, the fundamental and harmonic magnitudes can be best calculated and optimized using Fourier series. You can superimpose 5...17 replies | 589 view(s)
-
17th November 2019, 23:49What do you mean with "same result"? You can't achieve more than 100% rectifier efficiency. Assuming 2V LED + rectifier forward voltage for...1 replies | 137 view(s)
-
17th November 2019, 23:28FvM replied to a thread Multiple pulse width ( 5 pulses ) inverter and lowest low order harmonics in Mathematics and PhysicsYou can determine the optimal pulse timing for harmonic cancellation using fourier series and Excel solver. I'll send you an example tomorrow.17 replies | 589 view(s)
-
17th November 2019, 17:39It depends. If a product is directly protected by a patent, US law requires to mention the patent file in datasheet. See e.g....1 replies | 171 view(s)
-
17th November 2019, 17:17Just look at the waveform...16 replies | 396 view(s)
-
17th November 2019, 15:34What did you conclude? The higher sampling rate doesn't change the picture, you have superimposed ripple during the first 45 degree. To me, it...16 replies | 396 view(s)
-
17th November 2019, 15:02FvM replied to a thread Multiple pulse width ( 5 pulses ) inverter and lowest low order harmonics in Mathematics and PhysicsA similar modulation scheme with harmonic cancellation is referred to as Magic Sinewaves, for some reason using an even number of pulses per half...17 replies | 589 view(s)
-
17th November 2019, 14:06The angle values are monotonic, but not equidistant. Obviously the sin/cos readings are not corresponding to constant speed rotation, there seems to...16 replies | 396 view(s)
-
17th November 2019, 12:12FvM replied to a thread Rectifier diodes with bypass capīs & gounding speaker basketīs in Hobby Circuits and Small Projects ProblemsUp to now, I was under the impression that the main purpose of rectifier bypass caps in audio equipment is to reduce MF and SW interferences from...12 replies | 477 view(s)
About FvM
Basic Information
Optional Info
- Location:
- Bochum, Germany
- Interests:
- Analog, DSP, Power electronics and more
Statistics
Total Posts
- Total Posts
- 45,664
- Posts Per Day
- 10.57
General Information
- Last Activity
- Today 00:26
- Join Date
- 22nd January 2008
Helpful Postings
- Has Rated
- 2106
- Post Rated
- Rated helpful 13530 out of 13530 times
128 Friends
Showing Friends 1 to 10 of 128
Experience
Points
- Points
- 261,349
- Level
- 100
Level up completed
- Level up completed
- 0%
- Points required
- 0
Activity
- Activity
- 100.0%
- Activity last 30 days
- 100.0%
- Activity last 7 days
- 100.0%
Points
All Points for user
- Points for User
- 58,459
- Points for Reputation
- 53,862
- Points for every day since registration
- 4,204
- Points for Friends
- 387
- Points for posting Visitormessages
- 2
- Points for filling profile
- 4
All Points for threads
- Points for threads
- 3,947
- Points for Threads
- 113
- Points for tagging threads
- 3,709
- Points for replies
- 125
All Points for posts
- Points for Posts
- 198,942
- Points for Posts
- 131,153
- Points for uploading Attachments
- 54
- Average Posts per Day
- 10.00
- Helpful Answers
- 67,735
All Points for miscellaneous
- Points for Misc
- 0
Activities
20th November 2019
- 03:05 FvM has earned 30 Points for Posts points
- 03:05 FvM has earned 1 Points for threads points
19th November 2019
- 03:05 FvM has earned 33 Points for Posts points
- 03:05 FvM has earned 2 Points for threads points
- 03:05 FvM has earned 1 Points for User points
18th November 2019
- 03:05 FvM has earned 6 Points for User points
- 03:05 FvM has earned 51 Points for Posts points
- 03:05 FvM has earned 3 Points for threads points
17th November 2019
- 03:06 FvM has earned 4 Points for threads points
- 03:06 FvM has earned 38 Points for Posts points
- 03:06 FvM has earned 3 Points for User points
16th November 2019
- 03:06 FvM has earned 8 Points for Posts points
- 03:06 FvM has earned 2 Points for User points
15th November 2019
- 03:05 FvM has earned 9 Points for Posts points
- 03:05 FvM has earned 1 Points for threads points
- 03:05 FvM has earned 1 Points for User points
14th November 2019
- 03:05 FvM has earned 26 Points for Posts points
- 03:05 FvM has earned 2 Points for threads points
- 03:05 FvM has earned 2 Points for User points
13th November 2019
- 03:05 FvM has earned 9 Points for User points
Show Activities from all Users