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自1988年以来,POLYFET一直在向市场大量提供最新技术的大功率RFMosfet射频晶体管,产品包括LDMOS(横向扩散MOSFET晶体管)和VDMOS(垂直扩散MOSFET晶体管)两大类。公司位于美国南加州,距洛杉矶西北部约一小时的车程。作为一家专业的半导体生产企业,我们通过优质的产品,快速的交货以及极佳的服务,技术支持,帮助我们的客户选择了合适的晶体管产品,成功的设计并使用于他们的功率放大器,创造了值得骄傲的业绩和历史。我们的产品广泛应用于通信行业各个领域,如通信电台,移动通信和寻呼基站,MRI成像仪,广播电视FM/TV发射设备,激光驱动器等等。POLYFET的产品使用寿命之长超过15年,对设备的稳定性和可靠性来说无疑是一个可靠的保证。对于那些使用软件进行功放设计的工程师们来说,我们还有一个很好的便利服务提供给您,那就是,您可以下载到我们的产品的S参数和Spice模型。
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Power Integrations introduces a new Power Supply Design Idea, DI-141, that enables anti-
tampering protection in electricity meter applications.
In some countries it is estimated that five percent of electricity production is
consumed illegally through tampered meters, a very real and high cost to utility
companies. New and effective anti-tampering strategies are in continuous demand by
meter developers.
Based on the companys highly successful LinkSwitch-XT family, the design idea offers
an isolated power supply in flyback configuration that delivers 150 mA at 5 V, even
under an intense external magnetic field, the most commonly used method of disabling
meters without alerting existing anti-tampering measures.
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