Dual Power
DC dual end power supplies?
I've seen how to make a dual power supply (in my case for an OP-amp) by grounding the centre of two batteries or cells, but where or what do you do on a real circuit, how would you ground a little DC circuit?
It is the same basic idea (as the battery example you used). Lets say your circuit needed a plus 5 volts and a -5 volts. You just could use two regulators a +5 volt one and a -5 volt one.
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Cool 3G Hiphone, with Dual SIM Card Support
Cool 3G Hiphone, with Dual SIM Card Support
3G style Quad band China Hiphone, Yet Dual SIM Cards
When you think about hipone, what do you think of first? Which aspects of hipone are important, which are essential, and which ones can you take or leave? You be the judge.
3G 11Quaband China Hiphone - Dual Cards Dual Standby , Touch Screen Multimedia Cell Phone
3G Hiphone
NEW China Hiphone Style-3G11 Style
10 Pages Menu Options, win Big Surprise!
3.2? Touch Screen ! Multimedia Cellphone
Multi- Languages:English,Spanish, French,Portuguese, German(deutsch), Italian, Bahasa Melayu, Bahasa Indonesia, Hungarian, Turkish,Greek, Romanian,
Frequency: 850/900/1800/1900 Band, GSM 3G Style China Hiphone !
This Fantastic China Hiphone , Multimedia 3.2? Touch Screen, Check out The Pictures below, and then scan the Specifications to see how many features you get for a little budget !
I trust that what you’ve read so far has been informative. The following section should go a long way toward clearing up any uncertainty that may remain.
Features:
• 3.2 inch l Widescreen Display, Touch Screen- HiPhone 3G Style!
• Built-in Battery, Built in 2GB Flah Memory.10 pages menu options, powerful games! big surprise!
• Multi-Languages:English,Spanish, French,Portuguese, German(deutsch), Italian, Bahasa Melayu, Bahasa Indonesia, Hungarian, Turkish,Greek, Romanian
• Frequency 850/900/1800/1900 Band, GSM cellphone available for all of the world
Powerful Game Functions,JAVA Games,E book
• 3G style Hiphone Has applied the most updated technology of of Touch Screen
• Support Video Player/Video Recording, Audio Player, FM Radio
• Embeded megapixels camera enables you to keep record of your world
• Bluetooth Wireless Technology makes you feel easy in Business approaching
• Support E-Books, Movie playing, and simple Games.
• Support WAP, GPRS,Java,Phonebook quick search,Message SMS,MMS.
Specifications:For NEW GSM China Hiphone-3.2? Touch Screen 3G11 -Pow
• Networking Frequency: GSM 850/900/1800/1900 Band
• Languages: English,Spanish, French,Portuguese, German(deutsch)
• Size: 11.5X6.4X1.4CM
• Video Player and Recorder
• Support Message SMS and MMS,Voice mail
• FM radio , MP3 Radio Player,Bluetooth.
• Built in Battery, Built in 2GB Flash Memory.
• Alarm,Caculator,Calendar,World time,Document, Notes
• Card-slot: Support T-flash card, present 256mb TF card.
• Data Transfer: USB cable/USB flash disk
• WAP: Support Wap 2.0 /GPRS: Support
• Telephone directories: 300 groups of contacts, Quick Contact Search,support incoming call with big head sticker,group ring an Messages SMS, MMS
• Schedule power on/off: support to start/close under set time
• Alarm clock: 5 groups, support alarm clock when machine’s closed, can set from Monday to Sunday
Package Contents:For N
• 1 x 3G 11Quaband China iMobile–Dual Cards Dual Standby
• Built in Battery,Built-in 4 GB Memory
• 1 x Stereo Headset
• 1x Leather Phone Bag
• 1 x Battery Charger
• 1 x USB Data Cable
• 1 x User Manual –English
Now might be a good time to write down the main points covered above. The act of putting it down on paper will help you remember what’s important about this Cool hipone.
So with all this features How Much this Phone cost?
Only $169.50
You can buy this amazing Hiphone here
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