jippie

Eindhoven, Netherlands

wirespeed.xs4all.nl/mediawiki

Age: 46

I'm into:

  • Linux;
  • Networking;
  • IT Security;
  • Perl;
  • System integration;
  • Arduino;
  • ATtiny & ATmega Microcontrollers (AVR);
  • Analog electronics;
4h
comment Why is one of my cats licking walls and windows?
@MatthewLechner smoking is equally bad for cats (or most any other pet for that matter) as it is for children. Therefore my house is a no-smoking area.
1d
awarded Citizen Patrol
May
1
comment Is there such thing as a hdmi to csi-2 adapter?
Are you looking to buy one or to design/develop one?
Apr
30
comment How to calculate amp for a power supply?
If you are worried about the 13 Amp rating, you'd better investigate the other four outlets. A properly behaving alarm clock power supply shouldn't make much difference.
Apr
27
comment Beaglebone Power Failure and Overheating
Your circuit at first glance doesn't look bad. The only thing thing I can think of is maybe too few decoulping caps, or a short of some sort. What worries me most is the fact that BBB is not a power station, it is the brains of the circuit. Did you try powering the power amp from an external power source?
Apr
27
comment Why LTspice is showing singular matrix error in the following inverter circuit?
Whenever you ask a question about an error message (on any computer related topic), always quote the exact message. Don't give it your own interpretation, don't skip parts because you think it is unimportant. A screenshot can be helpful, but to be able to search for the message it is vital to include it in typed text.
Apr
23
comment Is power rating of transformer determined by input or load?
Interesting idea for harvesting energy, but you are aware that the power consumed by the PRi is no longer powering the main load? You can't create power out of nothing. On this stack we obey the laws of thermodynamics.
Apr
23
comment Is power rating of transformer determined by input or load?
Draw a circuit diagram and annotate the different components so it is easier to refer to in answers and comments.
Apr
23
comment Is power rating of transformer determined by input or load?
What is important is the current × voltage with respect to the current transformer, not with respect to the main series load. Although current in the primary winding is the same as through the main load, the voltage across it isn't.
Apr
17
comment Tube Guitar Amp Audio Output Transformer Winding Theory
One could write a book on this topic and book recommendations are a poor fit for the SE format. Try to ask a more focussed question before yours is getting closed.
Apr
17
comment NPN or PNP for multiplex seven segment display?
For common cathode (CC in your circuit diagram) displays you want to use NPN transistors. PNP is not really an option.
Apr
17
comment Programming pattern to generate VGA signal with micro-controller?
There are VGA libraries for AVR. Different microcontroller, but you might get some inspiration from it. You might be able to utilize the DMA controller to offload the main CPU, because generating a video signal is pretty CPU intensive without these sort of tricks.
Apr
16
comment How to identify a component on a board?
@Pigrew yup, seems reasonable output frequency is either 64 or 128 times 6.788 MHz crystal frequency.
Apr
16
comment How to identify a component on a board?
5100 is probably the modulator and PLL controller IC. Controlled by the PIC 12F508. X1 will set the main frequency which will be multiplied by the PLL to a frequency in a legal to use radio band.
Apr
4
comment How do you draw a truth table on stack electronic?
4. Create an HTML table and convert it to ASCII art using a text browser or HTML to TXT converter. Eg: en.wikipedia.org/wiki/Links_%28web_browser%29 or en.wikipedia.org/wiki/Lynx_%28web_browser%29
Apr
4
comment How do you draw a truth table on stack electronic?
Karnaugh maps are even more fun ;o) I know I've done a MathJax KM once, but I've reverted to ASCII art or a screen grab from a spreadsheet ever since.
Apr
3
comment How do you draw a truth table on stack electronic?
Not sure if you get excited: meta.electronics.stackexchange.com/a/2829/8627
Apr
2
comment PLL with variable pulse widths
Not sure why you want to use a PLL, simply triggering an adjustable monostable multivibrator from the input signal may do the job.
Mar
31
comment AVR Frequency measurement accuracy
Check the datasheet for Input Capture Pin. Together with smart interrupt usage you can extend the timer without the need for using the prescaler. Not entirely sure of mega16 has ICP, which brings me back to my first suggestion of checking the datasheet.
Mar
29
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