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KlausST
KlausST
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17th April 2014
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14:27
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Today,
12:35
KlausST
replied to a thread
UART condition in PIC18F65K40
in
Microcontrollers
Hi, This all sounds good. The only thing that worries me is "RS232" .... because there is no RS232 in your schematic... Klaus
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13 replies | 234 view(s)
Today,
09:05
KlausST
replied to a thread
AC sinewave sampling circuit
in
Microcontrollers
Hi, The benefits of the Microchip solution against my solution: * differential input * less output impedance * not urgently needed to connect...
see more
6 replies | 145 view(s)
Today,
08:01
KlausST
replied to a thread
choosing relay coil voltage rating specifications
in
Elementary Electronic Questions
Hi, The relay is built to safely isolate coil signal from switching signal. There generally is no need for isolating 24V, there generally is no...
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15 replies | 227 view(s)
Today,
07:46
KlausST
replied to a thread
AC sinewave sampling circuit
in
Microcontrollers
Hi, https://www.edaboard.com/showthread.php?355515-moved-AC-voltage-measurement-using-pic&p=1520931&viewfull=1#post1520931 You need to know...
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6 replies | 145 view(s)
Yesterday,
19:42
KlausST
replied to a thread
AC sinewave sampling circuit
in
Microcontrollers
Hi, There are a lot of discussions about AC mains voktage measurement. I've posted schematics. Do a forum search. Why do you think the...
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6 replies | 145 view(s)
Yesterday,
15:19
KlausST
replied to a thread
Picture Attachment Function is not working
in
About EDAboard.com
Hi, How did you do this exactly? At the Quick Reply window you have: * "Insert Image" button at the top toolbar * "Add an Image" button at the...
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8 replies | 190 view(s)
Yesterday,
12:06
KlausST
replied to a thread
choosing relay coil voltage rating specifications
in
Elementary Electronic Questions
Hi, This is what I mean: Now you are concerened about power, but you never mentioned this before. Tell us your ideas. --> Relay coil power: I...
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15 replies | 227 view(s)
Yesterday,
11:16
KlausST
replied to a thread
choosing relay coil voltage rating specifications
in
Elementary Electronic Questions
Hi, Yes, I ask myself. Why donīt you choose it? Itīs the straight forward solution. Why bother? Why do you consider extra effort for the...
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15 replies | 227 view(s)
Yesterday,
10:26
KlausST
replied to a thread
choosing relay coil voltage rating specifications
in
Elementary Electronic Questions
Hi, Is the coil fixed connected to one of those supplies? or is the coil operation controlled somehow. If so, then why, how, what application......
see more
15 replies | 227 view(s)
Yesterday,
10:13
KlausST
replied to a thread
choosing relay coil voltage rating specifications
in
Elementary Electronic Questions
Hi, I really donīt understand the question. If you want to run the coil in a car with 12V DC supply, then choose a 12V DC coil. If you want to...
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15 replies | 227 view(s)
Yesterday,
10:09
KlausST
replied to a thread
UART condition in PIC18F65K40
in
Microcontrollers
Hi, just read datasheets. * SN65HVD1471 pin "R" is clearly declared as output * you connected this to your signal "RS422_RX" * you connected...
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13 replies | 234 view(s)
Yesterday,
10:02
KlausST
replied to a thread
CXA8038AP ic by Sony (instruction)
in
Service Manuals, Requests, Repair Tips
Hi, can you upload a photo of it? Klaus
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4 replies | 131 view(s)
Yesterday,
09:49
KlausST
replied to a thread
Masterguard series E100 battery
in
Service Manuals, Requests, Repair Tips
Hi, Iīd * read the datasheet * go through the manufacturerīs internet pages * contact the manufacturer Klaus
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2 replies | 78 view(s)
Yesterday,
09:40
KlausST
replied to a thread
UART condition in PIC18F65K40
in
Microcontrollers
Hi: * In the text you write: "RC0 - TX as output and RC1 - RX as input like" but your schematic shows it the other way round. * According...
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13 replies | 234 view(s)
Yesterday,
08:56
KlausST
replied to a thread
Picture Attachment Function is not working
in
About EDAboard.com
Hi, from time to time I upload picturees in png format. Never had any problem. Tell us how you try to upload it and give an error description,...
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8 replies | 190 view(s)
Yesterday,
08:44
KlausST
replied to a thread
UART condition in PIC18F65K40
in
Microcontrollers
Hi, I assume you additionally need to setup TRISC and USART4. If you want us to verify it you should show your complete code and also your...
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13 replies | 234 view(s)
Yesterday,
06:59
KlausST
replied to a thread
Is V = IR Correct as per the my example
in
Analog Circuit Design
Hi, Yes. For an ideal voltage source. But real voltage sorces have internal resistance. I don't know what's a realistic value for an AAA...
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2 replies | 86 view(s)
Yesterday,
06:46
KlausST
replied to a thread
UART condition in PIC18F65K40
in
Microcontrollers
Hi, I'm not familiar with PICs. But if I understand the example right... Datasheet says: Thus I expect you set output pin of PC0 to USART4Tx...
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13 replies | 234 view(s)
Yesterday,
00:17
KlausST
replied to a thread
Test program to check ADC.
in
Microcontrollers
Hi, You don't give an error description. Some issues I see: They are only set to 1, but never set to 0, Thus it is expectable that both...
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2 replies | 141 view(s)
21st June 2018,
17:35
KlausST
replied to a thread
Feedback on LED cube circuit sought
in
Hobby Circuits and Small Projects Problems
Hi, Why guessing? --> the datasheet tells you it is a "current source". in post#11 I told you this. in post #15 and #30 c_mitra told you the...
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35 replies | 609 view(s)
21st June 2018,
12:46
KlausST
replied to a thread
Switching power supply emission the electromagnetic waves
in
Power Electronics
Hi, * bad PCB layout * inductors * wiring usually itīs not a single component that is responsible for EMI Maybe, maybe not. It depends...
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4 replies | 176 view(s)
21st June 2018,
12:37
KlausST
replied to a thread
How to deal with large offset voltage in high-power op-amps?
in
Analog Circuit Design
Hi, It seems your picture is a low resolution B/W one, which is artifically stretched to higher resolution. Best is to show to optimize the...
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7 replies | 183 view(s)
21st June 2018,
11:33
KlausST
replied to a thread
AC PIR Light Controller ELMOS E910.99?
in
Analog Circuit Design
Hi, The manufacturer is interested in selling, therefore they give the informations: https://www.elmos.com/english.html then goto -> or:...
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1 replies | 53 view(s)
21st June 2018,
11:23
KlausST
replied to a thread
selection of devboard for hobby project
in
PLD, SPLD, GAL, CPLD, FPGA Design
Hi, The NDA comes with a lot of rules you have to observe. They will tell you how you have to behave and what you have to do and what not. Read...
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7 replies | 213 view(s)
21st June 2018,
11:17
KlausST
replied to a thread
Feedback on LED cube circuit sought
in
Hobby Circuits and Small Projects Problems
Hi, Because your simulation is not realistc. I donīt want to repeat the issue with the constant current driver outputs of the TLC4950... ...
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35 replies | 609 view(s)
21st June 2018,
11:15
David_
replied to a thread
How to deal with large offset voltage in high-power op-amps?
in
Analog Circuit Design
The OPA544 and OPA541 have some desirable features but I think I will go for the OPA564, it has only a +-12V supply capability(the original design...
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7 replies | 183 view(s)
21st June 2018,
09:50
KlausST
replied to a thread
My controller Malfunctioning due to Radiated Emision of 350Mhz Walkie Talkie device
in
Microcontrollers
Hi, First and - in my eyes - the most important is a really solid GND plane. Best: No splits, no other wires in it. All the signals refer to this...
see more
9 replies | 441 view(s)
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