| 摘要 |
<p>A first in-jack (9) is connected to a negative terminal of a unidirectional supply network; a second in-jack (10) is connected to a positive terminal of said unidirectional supply network; a first out-jack (11) of a negative polarity and a second out-jack (12) of a positive polarity is connected to an electronic device being fed; the first in-jack (9) is connected to one end of a coil (1); second end of the coil (1) being connected to one end of a second blocking diode (5) acting as a cathode thereof, and second end of said blocking diode (5), which is its anode, is connected to the first out- jack (11); the second out-jack (12) and one side of a protective condenser (6) as well as one side of an accumulation condenser (7) are connected to the second in-jack (10); second end of the protective condenser (6) as well as second end of the accumulation condenser (7) are both connected to one side of a first blocking diode (4), which is its anode, and to one side of a switching diode (8), which is its cathode; second end of the first blocking diode (4), which is its cathode, is connected to a second side of a limiting resistor (3); second side of the switching diode (8), which is its anode, is connected to the first out-jack (11); one side of the limiting resistor (3) is connected to second side of the coil (1).</p> |
