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Consumer Electronics
Ask questions here about the electronics you use every day: from phones and computers to kitchen appliances and radios.
4,952 Questions
There are a couple types of diode clamping-- A P-N diode was often used for clamping coils of relays that produce high voltages when the relays is de-energized. Bidirectional zeners are now the best solution. Diode clamping is also a term used to limit voltage excursions generally. Zener diodes are generally used for this purpose.
It's a method of protecting electronics from electro-magnetic pulses.
How can you find information on a cell phone owner if you have the number?
Call the number and ask them.
Relation between current gain and collector current?
That's referred to as, `hfe` in transistor parlance. Essentially, since a transistor is a current operated device, the gain means that for every milliamp in at the base, the gain (times X) will be amplified through the junction of the collector/emitter.
For instance, take a transistor with a gain of 30. One milliamp in at the base will allow the transistor to pass 30 milliamps through the collector/emitter junction. Of course, there will also be a resultant voltage drop of 1.2 volts over all. -.6 volts for the base and -.6 volts through the collector/emitter junction. Remember, you're working with a current controlled device, and not a voltage controlled device like an op-amp.
The manufacturer Swees is within an umbrella to Wedowholesale Limited, which is based in the UK. They specialize in various consumer electronics and accessories.
How does the Analog multiplexer IC-4051 works?
I think each channel acts like a drain-source path of a FET switch,whose resistance changes from very high to very low. Yet the Drain - source are almost isolated from gate. It seems internally the a.multiplexer contains such FETs. And depending upon the channel selection by digital pins a0..a2 certain single path is made low resistance
Chance tem one by one then you safe them software
How much does it cost to avoid technology obsolescence?
I would say your wallet would have to be bottomless.
Does Russia have a WEEE directive that explains how E-Waste should be dealt with?
There are no Russian WEEEner and/or RoHS laws or regulations at the moment.
It is expected to have similar to WEEE and RoHS law issued by the Russian Federation in next 3 to 4 year.
Why should you let children use the internet?
The internet is a great resource of information of all sorts, but it is also full of much danger and filth. If you decide to allow your children to use the internet, you should do so only close supervision.
How do you find instructions for Sharper Image atomic clock model LM521?
i set my Sharper Image atomic clock model LM521 and it works for several hours but then the time changes to several hours off. clock is plugged in wall and has batteries. no ower surges, etc.
A Biomedical Engineer is a doctor/scientist that studies the radiological entities that consume all matter in the universe. It pertains to the medical field because when neurons multiply it causes cancer which is a form of consuming matter. Oh, and they also study medicine and new ways to cure diseases.
What voltage is a c battery no good?
A C cell is fully discharged at 0.9 volts, 60% of the nominal 1.5 v.
How do you use Newport cigarette upc's to get stuff?
got a lot of Newport upcs want to trade them in for the debit cards.
How do you reset your casio pcr265p back to normal like it was when it was new has a code e94?
ineed to reset my cash register pcr265p back to when it was new
What is a Bang and Olufsen BEOmaster 6000 worth?
In mint condition, a Beomaster 6000 should fetch about € 200.
What is the first microcomputer?
the first microcomputer is the altair 8080....but the first commercially available microcomputer is the apple II produce by the Intel Corp......=)
Does it harm rechargeable batteries to let them freeze over the winter?
it's worked for me. Last cordless drill both battery packs stopped taking a charge in the middle of a job. Whacked them both in the freezer for an hour or so whilst I did other things and had lunch. They both took a charge again and kept going for at least six months until I sold that drill to cash convertors.
Current drill has one battery that on occasions refuses to take a charge, it's been sent to the freezer a few times now and it takes a charge again. I've no doubt that it's only a temporary fix and that it signals the end of the battery pack but I've managed to squeeze another year out of that batttery. I'm also sure that not all batteries will respond and that possibly frequency of usage will have an impact also. Generally my cordless gets used for 10 hours or more a week. I'm sure that this is better for a battery than infrequent use.
What is a resistor on an electric circuit made of?
The opposition of a body or substance to current passing through it, resulting in a change of electrical energy into heat or another form of energy. So it could be any substance.
From 68.191.13.211. Now would someone out there add to what you have sen so far. Then we will all be more aware of the exact nature of the resistance.
