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IC-MZDFN10 Datasheet(PDF) 10 Page - IC-Haus GmbH |
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IC-MZDFN10 Datasheet(HTML) 10 Page - IC-Haus GmbH |
10 / 11 page iC-MZ DIFFERENTIAL HALL SWITCH Rev A2, Page 10/11 P S1 S2 B 1 B 1 B 2 BT,hi B-B 12 B B 2 iC-MZ pole wheel V P P/2 V NA V A V dc 3P/2 P P/2 3P/2 V D BT,lo VB P P/2 3P/2 V ND VB 0 P/2 0 P 3P/2 N S P/2 P 3P/2 N S Figure 10: Pole wheel scanning Pole wheel scanning Pole wheels have a cyclic magnetization along their perimeter which is used for the magnetic modulation of iC-MZ. The intensity of the magnetic field is great- est along the perimeter and significantly diminishes with an increase in distance , so that iC-MZ should be placed as close to the pole wheel as possible. The magnetic subdivision along the pole wheel perimeter is repeated by a cycle P; iC-MZ’s electrical output signals also demonstrate this periodicity. The pole wheel is optimally adjusted when the Hall sen- sors are activated in antiphase, i.e. the distance of the Hall sensors is equivalent to just half a magnetic cycle. With iC-MZ this is the case when P = 4 mm. The dimensions of a pole wheel and its magnetic sub- division are often stipulated by the application so that the signals provided by the two Hall sensors are no longer in antiphase but in an arbitrary yet fixed phase relation to one another. The differential signal and the analog and digital iC-MZ output signals derived from it in dependence on the an- gle of rotation of a pole wheel are shown in Figure 10. iC-Haus expressly reserves the right to change its products and/or specifications. An Infoletter gives details as to any amendments and additions made to the relevant current specifications on our internet website www.ichaus.de/infoletter; this letter is generated automatically and shall be sent to registered users by email. Copying – even as an excerpt – is only permitted with iC-Haus approval in writing and precise reference to source. iC-Haus does not warrant the accuracy, completeness or timeliness of the specification on this site and does not assume liability for any errors or omissions in the materials. The data specified is intended solely for the purpose of product description. No representations or warranties, either express or implied, of merchantability, fitness for a particular purpose or of any other nature are made hereunder with respect to information/specification or the products to which information refers and no guarantee with respect to compliance to the intended use is given. In particular, this also applies to the stated possible applications or areas of applications of the product. iC-Haus conveys no patent, copyright, mask work right or other trade mark right to this product. iC-Haus assumes no liability for any patent and/or other trade mark rights of a third party resulting from processing or handling of the product and/or any other use of the product. As a general rule our developments, IPs, principle circuitry and range of Integrated Circuits are suitable and specifically designed for appropriate use in technical applications, such as in devices, systems and any kind of technical equipment, in so far as they do not infringe existing patent rights. In principle the range of use is limitless in a technical sense and refers to the products listed in the inventory of goods compiled for the 2008 and following export trade statistics issued annually by the Bureau of Statistics in Wiesbaden, for example, or to any product in the product catalogue published for the 2007 and following exhibitions in Hanover (Hannover-Messe). We understand suitable application of our published designs to be state-of-the-art technology which can no longer be classed as inventive under the stipulations of patent law. Our explicit application notes are to be treated only as mere examples of the many possible and extremely advantageous uses our products can be put to. |
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