Polarized Capacitors and 555
Howdy! This circuit of yours is EXACTLY what I was looking for. TOTALLY cool! However, I have a few questions about it…mostly because I’m a software guy. Astable 555 Timer Flasher So please bear...
Author: delabs
Analog Ground and Digital Ground
I need a few tips from you on Analog design in general: I have seen that a lot of ADCs have a separate AGND and DGND, but they are shorted at the chip. I...
Millivolt Source for Calibration
I was looking for a simple MILLIVOLT SOURCE for ion electrode testing and came across your pdf schematic. This design would appear to fit my needs perfectly, but I have a couple minor questions...
Optical switch with photo sensors
Can you help me to find circuits which uses photo-sensors.and if you do have them, would you please send them to me. Mail from TM Just a few days back i have added one....
Lighting and Power control Automation
i am researching for a project for industrial automation . in this i am having one concept that is following below if any one of person is in room the electrical power should be...
uC Board is Buggy on Brown Out
I’m working on a project which involves battery Ni-Mh 4×1.2v, 2100mAh], which power-ups the boards. The current consumption is about 150mA. Now what I wish to do is disconect the load when my battery...
Using LEDs with Battery Power
What are LEDs ? How can we use them for Long Battery Life Mail from AD If LED flashes at 5-10 K Hz at even 50% Duty Cycle. It may save some power and...
Resistance measurement with Current Source – DMM
U3 LF 356 is used as a constant current source (sink as the current is negative). R4, R5, R7 and R9 set the four resistance ranges by changing the constant current in decade steps....
