Unit conversion: 1MHz = 1000KHZ = 1000 000Hz frequency electromagnetic heating Movement: 20 ~ 25KHz IEEE (International Electrical and Electronics Engineers) set for the range: 1, the magnetic field around from about 0.1MHz to 300MHz frequency range, the resulting large commercial cooker magnetic field, the magnetic field strength over 3 gigahertz, which are harmful wholesale large commercial cooker, 90MHz to 300MHz field hurt the most, and the more up closer hurt smaller field 0.1MHz, 0.1MHz following damage to the magnetic field problem, the more trivial. Of course, in the scope of its strength in three harmful milligauss following general is regarded as a safe range. First, the working principle of the similarities and differences: the same: both through a series circuit processing techniques ordinary AC (220V, 380V) is converted to a high-frequency direct current generated by a strong eddy current acting reel, and with the corresponding private cookware induced intense electromagnetic field, led directly to the appropriate special pots and pans inside the material atom collisions agitation speed, making the corresponding private pot with its rapid heating to produce high temperature for cooking processed foods! Different: one, to undertake the conversion of alternating current technology: full-bridge: the dual drive technology offer large commercial cooker, using two IGBT inverter modules are to undertake the mysterious wave and current into alternating current under mysterious wave, resulting in high-frequency current waveform complete, clear and stable; the half-bridge: A single large commercial cooker direct drive technology, the use of a single IGBT inverter module were to undertake the conversion of AC mysterious wave, combined with the corresponding circuit is configured to absorb the additional current discharge under mysterious wave supplement high-frequency current waveform generated relatively intact; 2, corresponding to the load-sensing special pots and pans: Full Bridge: due to the high current conversion technology allocative efficiency, can load high inductive loads, electric heat transfer efficiency correspondingly higher half-bridge: Because the current transformation less efficient technical configuration, you can load low inductive loads, electrical switch correspondingly lower thermal efficiency of large commercial kitchen cooker, Katherine letter kitchenware manufacturers, authorities provided by large commercial cooker Ltd. Shenzhen trillion letter kitchenware. Shenzhen Katherine letter Kitchenware Co. (www.cbdcl.com) is an industry leader in Shenzhen, Guangdong, cooking, baking equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Katherine letter kitchenware manufacturers in leadership with the staff warmly welcome all inquiries negotiations to create Katherine letter kitchenware manufacturers a better future.