基本信息

• 发明名称： 【发明专利】 Improvements in or relating to electric circuits employing elements which operate byvirtue of the hall effect
• 申请日： 1970-08-15
• 申请号/专利号： GB3508057
• 专利权人： 无
• 申请人： SIEMENS AG
• 分类号：
• 发明人/设计人： 无
• 公开日/公告日： 1970.08.16
• 优先权号：
• 代理机构：
• 代理人：
• PCT申请号： 无
• PCT申请日期： 无
• PCT进入国家阶段日： 无
• 生物宝藏信息： 无
• 审查员： 无

摘要：871,867. Semi-conductor devices. SIEMENSSCHUCKERTWERKE A.G. Nov. 11, 1957 [Nov. 13, 1956], No. 35080/57. Class 37. A Hall plate, made of a material in which the carrier mobility is more than 6000 cm.<2>/volt sec., e.g. an AIII BV compound is disposed between the poles of an electromagnet in an air gap the thickness of which is less than (2 x 107- tines the carrier mobility)cm. The device is used as a modulator or frequency converter using a slowly varying direct current or lowfrequency alternating current through the winding of the electromagnet to modulate a higher-frequency current between the current electrodes of the Hall plate. The employment of the lower-frequency current in the magnet winding reduces unwanted inductive voltages in the output circuit. The core of the electromagnet is preferably made of a ferrite of high permeability and negligible hysteresis loss.

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