22,814 reputation
12463
bio website n/a
location Toronto, Canada
age 41
visits member for 4 years, 9 months
seen 11 hours ago

c programmer, embedded dabbler, power supply tinkerer. (also loser of three consecutive moderator elections on EE.SE.)

[formerly known as 'madmanguruman' but shed that identity after a nice conversation with Olin Lathrop at Microchip MASTERS 2014.]

almost 15 years experience with switching power supplies at two different companies in the greater toronto area. worked my way from production technician to sustaining engineering, then product development (electrical and embedded). also fluent in vba and labview. currently studying project management theory while working as a power supply designer.


1d
comment Oscillator Error and PIC24F stopped working
Edit your question with the details, don't put them in comments. People often won't search lengthy comment threads looking for context that belongs in the body of the question. Also, where's main()?
1d
comment Pic 18F452 / push button
MPLAB IDE 8 v8.50 is not a compiler, it is the integrated development environment. Also, the way your circuit is wired, pressing SW1 places the PC into reset by pulling _MCLR low - no code will execute while the button is pressed.
Jun
30
comment Breaking a 16-bit long int to write into eeprom?
@HannoBinder He said that he was using a long int to store 16 bits of data. He could be not using the other 16 bits and still be 100% correct in his statement. Inefficient, sure, but still correct...
Jun
27
reviewed Approve A doubt on electromagnetic induction?
Jun
27
comment USB: what are the advantages (or disadvantages) or using HID over serial-over-USB?
FYI: If you don't want 'virtual COM port roulette', make sure your CDC device has a serial number descriptor. If the device has a S/N descriptor, Windows assigns a unique com port to that VID-PID-S/N, and you can move it to whichever USB port you like - the VCP will stay the same. If you don't have a S/N descritpor, Windows substitutes in a field representing the physical USB port - this is why the virtual COM port changes when you move the device.
Jun
26
comment Why is ground voltage non-zero, and why does it increase when I plug in an LED?
Ground is zero by definition. Hence, what you're measuring isn't ground.
Jun
25
revised pic24f16ka102 i2c problrm.i get the acknowledgement for the address but i didn't get any acknowledgement for data i am sending.
added 176 characters in body
Jun
25
comment pic24f16ka102 i2c problrm.i get the acknowledgement for the address but i didn't get any acknowledgement for data i am sending.
@nilesh What is your question? You posted code but didn't ask anything.
Jun
23
comment Is this a class A type audio amplifier circuit?
Why are you assuming that only men use this site? 'Sir' is not an appropriate salutation for mixed-gender audiences.
Jun
23
revised Is this a class A type audio amplifier circuit?
deleted 45 characters in body; edited title
Jun
18
awarded  Necromancer
Jun
13
comment roland micro cube fuse?
@IgnacioVazquez-Abrams He did say that his power supply fried in the first sentence.
Jun
13
comment roland micro cube fuse?
You will need to show a picture or describe the markings around the metal ends of the fuse for us to have a chance of identifying it. Also, know that if you don't find the issue that caused the fuse to blow, simply replacing it and applying power will likely cause the new fuse to blow as well.
Jun
11
revised surge protection — grounding in a slummy apartment without ground access
deleted 571 characters in body
Jun
11
comment surge protection — grounding in a slummy apartment without ground access
@Jon Mind you, he wouldn't need a kettle if there ever was a major electrical fault - the sink would do a nice job of boiling whatever was in it! :)
Jun
11
comment surge protection — grounding in a slummy apartment without ground access
This would be a better fit on the DIY stack exchange.
Jun
11
comment Metal Film Resistor: Coating Reliability
@SpheroPefhany +1. PR0x resistors aren't UL-recognized and as such the lacquer isn't considered insulation at all (from a safety standpoint).
Jun
9
revised Can you help me find the part number for this push button cap?
deleted 74 characters in body
Jun
8
revised IR2110 LTspice - High frequency switching
deleted 25 characters in body
May
27
revised X-rated capacitors required for DC input voltage circuits
deleted 35 characters in body