22,459 reputation
12363
bio website n/a
location Toronto, Canada
age 41
visits member for 4 years, 7 months
seen 4 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 RF VCO not O-ing
Choose a different supply with tighter voltage regulation and the amps will take care of themselves.
Apr
22
answered Error: PIN_B0 undeclared in XC16
Apr
22
comment Error: PIN_B0 undeclared in XC16
If you check the XC16 p24fj64gb002.h device header file, you will find the LATB data structure defined - LATBbits.LATB0 is perfectly acceptable syntax for that part. (I'm currently working with that exact part in a development project.)
Apr
8
comment How to interface PWM output from a microcontroller with power MOSFET?
Put these details into your original question please.
Apr
8
comment How to interface PWM output from a microcontroller with power MOSFET?
What do you plan to do with the MOSFET? Will you be PWMing it? If so, at what frequency? A MCU's weak GPIO driver is generally incapable of high-frequency PWM as the limited drive current capability cannot charge/discharge the gate capacitance quickly. Also you may need to drive it to a higher voltage than the +5V max of the dsPIC to get the Rds(on) minimized.
Apr
8
revised How to interface PWM output from a microcontroller with power MOSFET?
added 52 characters in body
Apr
7
comment Help understanding the code
Look up 'C typecasting'.
Mar
31
revised Buck regulator output
deleted 42 characters in body
Mar
29
revised Old power supply regulation board will not trim to spec
deleted 106 characters in body
Mar
21
comment Getting UL certification for neon signs
Contact your local UL office and ask for a quotation.
Mar
21
comment Analog function generator ICs?
Kind of cool that it took almost 4 years before this question was voted to be closed. :)
Mar
20
answered Analog function generator ICs?
Mar
18
comment Microchip PIC18F24K50 I2C master talking to SHT21
Um, any reason why you're not checking for NACKs after sending the addresses? Shouldn't you be doing a restart before sending the address + read bit?
Mar
17
comment Selecting Loading Capacitor Values for 32 kHz Crystal
I wouldn't use NP0 in this application.
Mar
12
comment STM32 L1 Bootloader: What is needed after a full memory erase?
Please add hyperlinks to your reference documentation. If you help those who can help you, they are more likely to help you.
Mar
12
revised Question on large signal MOSFET DC Circuit Analysis
added 42 characters in body
Mar
12
revised PIC18F26K20 cannot set internal oscillator to high speed
deleted 29 characters in body
Mar
11
comment Logic Circuit Design
You will find that there are many correct ways to solve problems. If the output gives you the correct result then it is correct logically, but there may be other solutions that also give the correct value.
Mar
11
answered Logic Circuit Design
Feb
24
comment Frequency measurement using PIC
Please take all of the additional information that you've provided in these comments and edit your original question with these details. No one should have to read through a long thread of comments to understand exactly what you're asking, and many people on this site simply won't help you because your question is vague.