Best Rated threads in Electronics Designshow all threads
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control theory in the shower
So the shower at my gym has a sluggish response. It's a single rotary knob, I usually I have to twist it a few times before it settles at the right temperature; it delays, then overshoots. Alternate...
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1 year ago
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iowa hills
The iowa hills site has been down for awhile. I don't understand dropbox, but some time ago I did archive the iowa hills sw. I have links but don't know if they work due to my dropbox knowledge:...
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1 year ago
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aioe.org is running in casters-up mode
It was unresponsive earlier this morning, and now redirects to a parking site. :( Cheers Phil Hobbs
2
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1 year ago
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Photodiode bootstrap phase rolloff
Hi all, I am currently working on a range-switched photodiode design for use in our laboratory [1]. It took me a while, but I've arrived at a design I'm fairly happy with (in no small part thanks to...
16
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6 years ago
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Tek TDS 744A -> TDS 784A upgrade hack!
Hi, all, Just wanted to report success in upgrading my TDS 744A scope (500 MHz, 2 gigasamples) to a much swoopier TDS 784A (1 GHz, 4 gigasamples). It now identifies itself as a TDS 784A everywhere...
7
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7 years ago
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Rectifier Schottkies in parallel
Hello, many Schottky rectifier diodes contain two diodes within a single package, usually with the cathodes connected. Does it make sense to connect the anodes too in order to get a diode which can...
22
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9 years ago
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micropower boost circuit
I need a DC to DC boost circuit with an output defined not with respect to ground, but with respect to the input, which is variable. Output about 15 volts above the input, over a wide range -- from...
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10 years ago
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is the hendershot generator ad a scam?
is it a scam? Will it work in a residential home ?
102
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11 years ago
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102 | |
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Any designs for a cheap x-y position sensor?
need a cheap, low power [read that as don't want to pay much, and need it portable] x-y position sensor that tells me where I am when I ask.. specs 1. RELATIVE position once START is ok. Then can...
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11 years ago
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56 | |
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2.5KVA transformer on square wave 1000hz mains
I just bought a 50/60 hz transformer rated 575VAC pri to 230VAC sec rated at 2.5KVA on ebay. I remember reading some time ago that transformer companies rated their transformers to 1000 hz. I'm...
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12 years ago
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18 | |
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C programming question for Arduino
I'm wanting to make timers that work like PLC timers, a condition comes true, a preset period of time later code is executed. It would be something like: void mytimer(bool enable, long preset) void...
32
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12 years ago
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32 | |
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Soldering iron tips
I've done my fair share of soldering, but never SMT. This video: ....is a good indicator of what's involved. The problem is, where do you get a tip like he's using. Took me awhile, but I googled him...
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12 years ago
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65 | |
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propagation velocity experiment
This would involve CK722 transistors, slotline samplers, and pecan pralines [1]. Unit of measure would be kiloseconds. Let's see what happens. John [1] The crunchy kind, of course. Only Yankee...
7
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12 years ago
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Protection circuit to be used for a gate pulse of SCR
Hello, I am doing a project on a temperature control controller has been designed in LabVIEW and I get a control signal of 0-5V output from DAQ which needs to be given as gate pulse to SCR.We are...
3
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13 years ago
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Improved capacitance multiplier
So, I had this application requiring really absurd amounts of ripple rejection--it's a piezo driver in a laser wavelength locker that (for historical reasons) has to run off a fairly crappy dual...
21
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13 years ago
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Peltier Controller Schematic
Can anyone point me to a schematic for a Peltier constant temperature controller? Thanks for any leads
21
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13 years ago
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21 | |
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generator conclusion
service 120vac 120vac signal o o o | | | o o------------* main | o o | | | | | house | | | | | | | | | barn | (COIL) --- --- | generator ignition -/- N.C. -/- N.C.. | o | | | | o generator o | --- ---...
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14 years ago
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STmicro acceleration/magnetic sensor LSM303DLH == LIS331DLH + HMC5834?
Just had a look at the LSM303DLH datasheet and had a déjà vu ;-) It looks like ST has simply put a LIS331DLH and a HMC5843 into one package. (The HMC lacks the built-in voltage regulator) All data...
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14 years ago
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PCB Cleaning
Is it safe to soak a pcb in acetone for several minutes to clean it up all the flux? The board only has some QFN's, SMT LED's, and passive SMT's. I imagine the acetone won't harm these packages?
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14 years ago
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24 | |
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DSP Device for Guitar Pedal Effect
I was wondering what DSP chip would be appropriate for a guitar pedal effect. I need to sample the incoming signal preferably at 96kHz perform a simple numeric function upon each sample and output he...
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14 years ago
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