21,689 reputation
12363
bio website n/a
location Toronto, Canada
age 40
visits member for 4 years, 1 month
seen 1 hour 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.


16h
awarded  microcontroller
1d
answered What facilities/methods exist to debug and simulate programs for PIC microcontrollers
Nov
18
comment How to set the oscilloscope to measure potential between two points that aren't ground?
@pawo38 The fact that your scope is analog is a crucial detail that you did not mention in your question. I have added this detail. In future, if comments elicit information that is absent from the question, edit the question and add the details. (People won't read endless comment threads to get all the details.)
Nov
18
revised How to set the oscilloscope to measure potential between two points that aren't ground?
added 7 characters in body
Nov
18
comment Powering a Digital Alarm Clock with AC
You do understand that 11.68VAC yields 16.8V peak, which is what most likely killed the e-cap?
Nov
18
revised Powering a Digital Alarm Clock with AC
deleted 30 characters in body
Nov
17
comment Can 2 boost converters outputs be put in parallel at the same voltage?
Why would capacitive load matter?
Nov
15
comment Why the voltage drop is so high in my Half-Bridge SMPS?
Inductances? (pri, sec, L2)
Nov
14
revised How do you calculate the power factor of a power supply?
edited body
Nov
14
comment How do you calculate the power factor of a power supply?
You're out of luck then.
Nov
14
answered How do you calculate the power factor of a power supply?
Nov
14
comment How do you calculate the power factor of a power supply?
Related: electronics.stackexchange.com/questions/51320/…
Nov
7
answered USB not detected
Nov
7
comment USB not detected
Many micros have the detection resistors internal and under firmware control. This one does too. From the datasheet, "The LSM bit in UDCON register allows to select an internal pull up on D- (Low Speed mode) or D+ (Full Speed mode) data lines."
Nov
4
comment DC/DC converter 12V > 5V providing 400 Watts?
You'll need to narrow this down a lot - what are your other constraints? Size? Cost? Efficiency? Isolation? Fault protection? Without a lot more details there will be no one answer suitable for this question.
Oct
31
comment What is the best and simple circuit diagram for a radio receiver to receive radio waves in Citizen's Band
Too broad - you haven't indicated (1) if you have any electronics knowledge and (2) what you have tried so far, if anything. "Design it for me" questions aren't really the focus of this site.
Oct
29
comment Most stable internal microcontroller clock
+1 @gbulmer. Which micros were considered and under what conditions, or was this a pure datasheet exercise? Under what conditions are you concerned about stability? The question seems overly broad to me as 'most stable' without any constraints or conditions lends itself to multiple, possibly conflicting answers.
Oct
28
comment Does the rt2832u chip have enough bandwidth for ATSC?
See reddit.com/r/RTLSDR/comments/1bpvwf/…
Oct
26
revised High Power Supply over a distance
deleted 18 characters in body
Oct
26
awarded  Custodian