In some circuits which are sensitive to noise and ripple, a filtering capacitor may be added to the DC/DC output end and input end to reduce the noise
and ripple. However, the capacitance of the output filter capacitor must be proper. If the capacitance is too big, a startup problem might arise. For every
channel of output, provided the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor sees the external capacitor table. To
get an extremely low ripple, an “LC” filtering network may be connected to the input and output ends of the DC/DC converter, which may produce a more
significant filtering effect. It should also be noted that the inductance and the frequency of the “LC” filtering network should be staggered with the dc/dc
frequency to avoid mutual interference (see figure 1).
Requirement on output load
To ensure this module can operate efficiently and reliably, a minimum load is specified for this kind of DC/DC converter in addition to a maximum load
(namely full load). During operation, make sure the specified range of input voltage is not exceeded, the minimum output load is not less than 10% of the
full load, and that this product should never be operated under no load! If the actual output power is very small, please connect a resistor with proper
resistance at the output end in parallel to increase the load.
本周，微软在加拿大多伦多开展了其2012年微软全球合作伙伴大会（WPC，在大会上，微软向全球的合作伙伴展示了其新的产品以及服务。其中，微软宣布将推出新的基于Windows的云系统。新的服务可以让用户能够建立自己的网站和网络应用程序；也将能够建立自己基于Windows或基于Linux的虚拟机；最后，还能够建立自己的自助服务门户。 微软Windows云服务将提供Windows Server 20...[详细]
国际半导体设备材料产业协会（SEMI）昨（10）日公布半导体设备资本支出的年中预测报告（SEMI Capital Equipment Forecast），预估2012年全球半导体设备营收规模将达到423.8亿美元，2013年将成长至467.1亿美元。
受惠平板电脑、智慧型手机与行动装置等消费性电子商品亮丽表现，半导体设备的采购需求仍将持续。SEMI在报告中指出，2011年半...[详细]
模拟电子
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
