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Powerful Filter Simulation with SPICE


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amplitude of the input noise. In this case, the 10A choke from the DKIH-1 family may be the best choice because it is compatible with the available space. When one downloads the DKIH-1 SPICE library from the


the customer can insert a choke symbol into his own circuit, prop- erly link it to other circuit ele- ments and select a specific ele- ment of the family via a drag- and-drop menu. With these advanced simu- lation models it is possible to


Figure 2: Simplified schematic of a buck converter.


SCHURTER website, two files are shared. In both cases, it is the DKIH-1 family, which con- tains models for all elements (ferrite version only), and the symbol of the product family, i.e. the circuit element itself, which represents the choke to be uploaded to the circuit. After downloading the LTSpice soft- ware, a special folder is created within the “Documents” folder in Windows. After transferring the files,


simulate very precisely the effect of a common mode choke used in an electrical circuit with electri- cal noise problems. SCHUR - TER’s service is designed to help the customer to find the best solution for his problem before testing a real choke prototype. Contact: SCHURTER, Inc.,


447 Aviation Boulevard, Santa Rosa, CA 95403 % 707-636-3000 fax: 707-636-3033 E-mail: stephanie.elliott@schurterinc.co m Web: www.schurterinc.com r


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