首页>
外国专利>
Power source of high efficiency and low power comutacao
Power source of high efficiency and low power comutacao
展开▼
机译:高效低耗电源
展开▼
页面导航
摘要
著录项
相似文献
摘要
A low power high efficiency switching power supply comprises a switching transducer having primary and secondary windings. The primary winding is supplied with a primary voltage over a series connected constant current source and Zener diode. The primary voltage is chopped by an FET which has a gate connected to an oscillator operating at relatively low frequency. The secondary windings of the transformer are connected to full-wave rectifiers which convert the A.C. signal produced by the chopping of the primary voltage, int a D.C. signal. Efficiency is maximized by using fast switching FET's and low flux densities in the transformer. The power supply is particularly useful in 4-20 mA current loops.
展开▼