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As with the previously exposed data, the iPhone 5's overall design style is not much different from the iPhone 4S. However, its screen size has been upgraded to 4.0 inches, the resolution is reached 640 × 1136 pixels, and ppi is still 326, but the actual display effect is indeed a lot clearer. In addition, an 8-megapixel camera is built into the back of the camera body for excellent imaging results.
Hardware configuration, Apple iPhone 5 also brought us a lot of surprises, this phone is equipped with the latest A6 processor, running memory upgrade to 1GB, the overall performance has also been greatly improved over the previous generation, the actual operation is extremely smooth. On the system side, the machine uses the latest iOS 6 version, which Siri Voice also officially supports Chinese, which is undoubtedly a good news for domestic consumers.
The Unipolar stepper motor operates with one winding with a center tap per phase. Each section of the winding is switched on for each direction of the magnetic field. Each winding is made relatively simple with the commutation circuit, this is done since the arrangement has a magnetic pole which can be reversed without switching the direction of the current. In most cases, given a phase, the common center tap for each winding is the following; three leads per phase and six leads for a regular two-phase Stepper Motor.
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Shenzhen Maintex Intelligent Control Co., Ltd. , https://www.maintexmotor.com