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专利名称：LOW POWER HIGH EFFICIENCY SWITCHING
POWER SUPPLY
发明人：ROWLAND WHITFORD申请号：AU5941586申请日：19860627公开号：AU5941586A公开日：19880107
摘要：A low power high efficiency switching power supply comprises a switchingtransducer having primary and secondary windings. The primary winding is supplied with aprimary voltage over a series connected constant current source and Zener diode. Theprimary voltage is chopped by an FET which has a gate connected to an oscillatoroperating at relatively low frequency. The secondary windings of the transformer areconnected to full-wave rectifiers which convert the A.C. signal produced by the choppingof the primary voltage, int a D.C. signal. Efficiency is maximized by using fast switchingFET's and low flux densities in the transformer. The power supply is particularly useful in4-20 mA current loops.
申请人：BABCOCK & WILCOX CO., THE;
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