FvM
Super Moderator
Find latest posts
View Articles
View Blog EntriesMini Statistics
- Join Date
- 22nd January 2008
- Last Activity
- Yesterday 23:07
- 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
- betwixt,
- Cesar0182,
- esp1,
- FlyingDutch,
- irfan ahmad,
- KlausST,
- mikeliog,
- mili123456,
- NECAIBIA,
- vivekroy
- Tab Content
- FvM's Activity
- About Me
- Friends
- Experience
-
Older Activity
-
Yesterday, 23:06The mysterious point is stated 233 mV sensor output voltage although the datasheet says it's only 30 mV at rated pressure.12 replies | 522 view(s) -
Yesterday, 18:00That's not the suggested circuit but it should amplify at least. OPAMP component however misses a bipolar power supply to work with zero DC bias.3 replies | 146 view(s)
-
Yesterday, 08:10Any rectifier circuit has some residual ripple. You can reduce it by increasing the filter time constant at the expense of high settling time.16 replies | 1935 view(s)
-
Yesterday, 08:06Drawing error. R5 has to be connected to ground not output. As sketched, the circuit misses negative feedback. The corrected circuit has CMRR but...3 replies | 146 view(s)
-
22nd May 2019, 08:06FvM replied to a thread Noise source vs tracking generator for frequency response measurement in RF, Microwave, Antennas and OpticsA VNA USB box is probably the better solution, you get 1 MHz to 3 GHz VNA < 500$. Or a used benchtop VNA.5 replies | 292 view(s)
-
22nd May 2019, 07:50Most MCUs are using AVdd as reference, in this case it's well accessible. If the ADC has an internal reference without external connection, you would...7 replies | 151 view(s)
-
21st May 2019, 23:31You want to center Vcm within the common mode range, about 1.65 V. 1 V will give reduced output swing with 5V single supply, review datasheet figure...7 replies | 151 view(s)
-
21st May 2019, 23:10FvM replied to a thread Noise source vs tracking generator for frequency response measurement in RF, Microwave, Antennas and OpticsDynamic range respectively accuracy will be considerably lower. Can be partly compensated by extended measurement time. May be o.k. for some...5 replies | 292 view(s)
-
21st May 2019, 22:53Using an instrumentation amplifier circuit with bridge sensors is a matter of accuracy, not only noise suppression. Single OP differential amplifier...12 replies | 522 view(s)
-
21st May 2019, 16:20You can build a discrete instrumentation amplifier. 2 or 3 OP circuit to get away with affordable resistor accuracy. 3 OP circuit is sketched in the...12 replies | 522 view(s)
-
21st May 2019, 16:07FvM replied to a thread Vivado Taking A Long Time To Run Synthesis & Implementation in PLD, SPLD, GAL, CPLD, FPGA DesignThe link is about pipelining with HLS compiler, not applicable to generic HDL code. As far as I understand, you are coding in generic VHDL. You...9 replies | 260 view(s)
-
21st May 2019, 15:58FvM replied to a thread Output of exors are showing x in EDA playground in ASIC Design Methodologies and Tools (Digital)module my_XOR(output Out, input A, input B); wire x,y,inA,inB,not_inA,not_inB; and(x,inA,not_inB); and(y,not_inA,inB); not(not_inA,inA);...2 replies | 195 view(s)
-
21st May 2019, 11:40The picture is showing composite video with sync, not composite sync. Composite sync as such is a digital signal, HSYNC xnor VSYNC.1 replies | 156 view(s)
-
21st May 2019, 11:24FvM replied to a thread [moved] Calculate the Input/Output Capacitor Value on DCDC converter in Power ElectronicsThe NQ60W60QTx25 datasheet has specifications for output capacitors with expectable ripple current. Why don't you follow the datasheet? ...6 replies | 176 view(s)
-
21st May 2019, 06:15FvM replied to a thread SCR speed brushed DC 180v motor control does not work in Analog Circuit DesignGood question. A possible solution is to use MOC3021 opto triacs instead of the low voltage opto couplers.16 replies | 1338 view(s)
-
20th May 2019, 21:38FvM replied to a thread Looking for a PSPICE/orCAD model of op amp LT1970 in Software Problems, Hints and ReviewsThe previous thread doesn't talk about simulating the device, may be real hardware problem. Linear/Analog is providing binary models for LTspice,...1 replies | 114 view(s)
-
20th May 2019, 16:30That's a possible explanation. Or shorted FRC output. Not sure if an ENC input signal outside specified frequency and level range may cause a similar...5 replies | 266 view(s)
-
20th May 2019, 16:27Yes. As the example shows, it can be also implemented with unity gain if the load resistance is infinite.16 replies | 1935 view(s)
-
20th May 2019, 16:22Yes, that's true.10 replies | 1188 view(s)
-
20th May 2019, 12:23FvM replied to a thread problem with my simulation on orcad pspice vers 9 in Elementary Electronic QuestionsAs the error message clearly says, there's a net list problem. You want to review the error log.1 replies | 281 view(s)
-
20th May 2019, 08:26FvM replied to a thread SCR speed brushed DC 180v motor control does not work in Analog Circuit DesignMissing connection between "GND" and SCR cathodes. Please notice that the control circuit GND, Arduino etc. carries mains voltage, with or without...16 replies | 1338 view(s)
-
20th May 2019, 08:14You need to observe the voltage difference between each cathode and both heater terminals. The heater circuit sketched in post #1 would most likely...19 replies | 648 view(s)
-
20th May 2019, 08:03tf(,) is a time continuous transfer function, not a time discrete IIR.4 replies | 434 view(s)
-
19th May 2019, 22:02FvM replied to a thread What do you call a ceramic SMD cap in a metal frame? in Elementary Electronic QuestionsThat's the idea. Better withstanding mechanical and thermal stress.4 replies | 349 view(s)
-
19th May 2019, 21:59Yes, you want to read the data sheets. They have 200 V cathode to heater voltage limit.19 replies | 648 view(s)
-
19th May 2019, 21:481 yes 2 no. There's no way to disable FRC separately.5 replies | 266 view(s)
-
19th May 2019, 17:17My VHDL tool says it's -3, no reason to doubt about. Please review numeric_std.vhd how it's calculated. if XL(XL'LEFT)='1' then XNUM :=...10 replies | 1188 view(s)
-
19th May 2019, 08:46FvM replied to a thread Design and construction of scintillometer for evapotranspiration in MicrocontrollersNo. Water vapor NIR lines have about 10% absorption for 1 km atmospheric path according to literature. You can well detect it with a simple...21 replies | 2634 view(s)
About FvM
Basic Information
Optional Info
- Location:
- Bochum, Germany
- Interests:
- Analog, DSP, Power electronics and more
Statistics
Total Posts
- Total Posts
- 44,445
- Posts Per Day
- 10.74
General Information
- Last Activity
- Yesterday 23:07
- Join Date
- 22nd January 2008
Helpful Postings
- Has Rated
- 2072
- Post Rated
- Rated helpful 13189 out of 13189 times
128 Friends
Showing Friends 1 to 10 of 128
Experience
Points
- Points
- 255,078
- 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
- 57,680
- Points for Reputation
- 53,174
- Points for every day since registration
- 4,113
- Points for Friends
- 387
- Points for posting Visitormessages
- 2
- Points for filling profile
- 4
All Points for threads
- Points for threads
- 3,620
- Points for Threads
- 113
- Points for tagging threads
- 3,385
- Points for replies
- 122
All Points for posts
- Points for Posts
- 193,778
- Points for Posts
- 127,709
- Points for uploading Attachments
- 54
- Average Posts per Day
- 10.00
- Helpful Answers
- 66,015
All Points for miscellaneous
- Points for Misc
- 0
Activities
23rd May 2019
- 03:05 FvM has earned 36 Points for Posts points
- 03:05 FvM has earned 13 Points for User points
- 03:05 FvM has earned 1 Points for threads points
22nd May 2019
- 03:06 FvM has earned 6 Points for User points
- 03:06 FvM has earned 42 Points for Posts points
- 03:06 FvM has earned 2 Points for threads points
21st May 2019
- 03:06 FvM has earned 7 Points for User points
- 03:06 FvM has earned 39 Points for Posts points
- 03:06 FvM has earned 3 Points for threads points
20th May 2019
- 03:06 FvM has earned 8 Points for User points
- 03:06 FvM has earned 35 Points for Posts points
19th May 2019
- 03:05 FvM has earned 41 Points for Posts points
- 03:05 FvM has earned 3 Points for threads points
- 03:05 FvM has earned 3 Points for User points
18th May 2019
- 03:05 FvM has earned 21 Points for Posts points
17th May 2019
- 03:06 FvM has earned 3 Points for User points
- 03:06 FvM has earned 14 Points for Posts points
16th May 2019
- 03:06 FvM has earned 2 Points for User points
- 03:06 FvM has earned 14 Points for Posts points
- 03:06 FvM has earned 1 Points for threads points
Show Activities from all Users