.:madworm:.'s photos with the keyword: electrolytic

Short-term energy storage

Short-term energy storage

.:madworm:.
08 May 2015 227
IKEA LED bulb - power supply capacitors

IKEA LED bulb - power supply capacitors

.:madworm:.
25 Nov 2014 281
Step-down converter

Step-down converter

.:madworm:.
29 May 2012 134
It is pretty efficient. Drop out voltage is about 0.5V at light loads. Only the trimmer is a bit strange. It's really unwilling to turn without force. Maybe I'll replace it some day.
Reflow mishap?

Reflow mishap?

.:madworm:.
29 May 2012 118
I tried to re-melt the solder, but that didn't help. I will have to get a hot-air thingy some day.
One through hole part

One through hole part

.:madworm:.
29 May 2012 135
If it weren't for this through hole trimmer, the board would be much nicer.
It's an old radio

It's an old radio

.:madworm:.
23 Jan 2012 181
They don't make chips anymore. And Austria... I'm shocked.
New parts - enough for 3 boards.

New parts - enough for 3 boards.

.:madworm:.
08 Aug 2011 145
Those 0603 resistors are tiny. I'm lucky I found a better pair of tweezers. And I will need glasses in a few years.
ATtiny13 board doing PWM and sensing

ATtiny13 board doing PWM and sensing

.:madworm:.
02 Jan 2012 133
This reads 2 contact pairs and adjusts the PWM duty cycle going to the PT4115.
PT4115 driver - modded

PT4115 driver - modded

.:madworm:.
02 Jan 2012 382
I've added a signal wire going to the 'dim' pin and wires getting the rectified voltage.
Does this one have any dual use issues?

Does this one have any dual use issues?

.:madworm:.
12 May 2011 131
Throwing it wouldn't work, but I bet I could do some serious poking with it. Nasty little headers...