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1) Amp meter
2) Volt Meter
3) Watt Meter
you hit the 3 types of meters.
By initiating latching reley with a 10ohm 100w resistor (10 100ohm 10w in parallel) may give additional load to the battery under charge, and when battery is full, the amp meter will reduce, possibly cause the relay to...
I was going though s few links and found a nicd car charger schematic, using a voltage regulator 5v, connected as a constant current, with taps for different current levels. The schematic was from a ham operator, and it looks like it sends current pulses at a rate of 1.5khz to charge batteries...
Good luck, charging non rechargeable batteries, They are not designed to release the hydrogen buildup when recharging, However, I would suggest using a 555 with your charging circuit , with a changing duty to let the battery time to catch up.
50% of charge at 100% , 50% duty for 75% of time...
as you have stated, virtual uses the hard drvive wich is SSSSSlllllooooowwwww. vista and above has an alternative method, and a paid program e-boost-r for xp will try to use thumb drives to increase the speed of virtual memory. Though maxing your motherboard up to 4M on a 32 bit peocessor...
yea its simple, lm317t and inefficient, what happends to the chip, with excess voltage, its converted to heat, yea it will work in a crunch, but bad design if you plan on marketing and selling
LT1510 - Constant-Voltage/Constant-Current Battery Charger
LT1510 - Constant-Voltage/Constant-Current...
yes they have ir led pulse/ox piezo changes electricity to pressure or pressure to electricity, though the pressure is quite a bit higher in frequency, and it can resonate, question i see what length of piezo will give best performance. normally the lower the frequency the larger area required...
found an item from search "piezoelectric sensor heart rate monitor" h**p://www.ecrater.com/p/7190199/visual-electronic-stethoscope-ecg-hr at $160
since you can use a pezo as an input and output it sounds possible, though I would be questioning the low frequency of a heartbeat. though they have...
have you tried "LT1028 Ultralow Noise Precision High Speed Op Amp" data sheet here h**p://cds.linear.com/docs/Datasheet/1028fa.pdf looks quite good actually, I have to keep this in mind, I may need this for 1.8-30mhz low band receive amp, once I build a few filters. fleebay has them 2 for 17 a...
looks fine, keep c1 close to pin7. If you use this in a vehicle or computer power supply units, use 4700uf by the power supply, and by the fan to ground. cleans the power supply to prevent false triggers.
They currently have a watch style heart rate monitor. There are also finger style heart rate and pulse ox in one unit. check **broken link removed**
found it with the search below
http://www.google.com/search?rlz=1C1AVSX_enUS417US417&aq=f&sourceid=chrome&ie=UTF-8&q=heart+rate+monitor+schematics
what type of battery are you charging?
the old nicd's you charge until the batteries heat up to a preset limit, then stops charging, much like the wheller cordless soldering irons (I have a few they use a reset able thermal fuse. I remember it opening at 108 deg F. Others use a constant...
h**p://regpro.mechatronik.uni-linz.ac.at/downloads/pat1/Tutorium/DS1104.pdf is a pci based card, you have a few ways of going about this, one contact the manufacturer, and see if there is a usb alternative or, go to thrift stores and see if there is a computer. Depends on the location you live...
cache memory is real memory, virtual memory is a part of your hard drive used for memory, usually when you run out of real memory, and makes your computer sluggish to stall for a few minuets.
You can go to crucial.com and take their memory scan, to see whats in your computer, and if it can be...
the op07's are they connected as shown?
did you zero the op07's by shorting the in inputs and connect a pot to pins 1 and 8 to zero the opamp like on the spec sheet for the op07's h**p://www.ti.com/lit/ds/symlink/op07c.pdf
did you place a .1mf cap by each ic +v to ground...
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