| 摘要 |
A circuit for securing a power supply is provided. The circuit consists of an energy storage means for supplying current to a load. The energy storage means receives current from the power supply at first and second current levels. The first current level is greater than the average current necessary to supply the load and the second current level is less than the average current necessary to supply the load. The current level of the power supply alternates between the first and second current levels as a function of a comparator means and a switching means assuring an adequate supply of current to the load. The comparator means compares the voltage across the energy storage means to a reference voltage and actuates the switching means. Hence, the current supplied by the power supply is different than the current supplied by the energy storage means to the load and the electrical characteristics of the load remain undetectable from the radio frequency emissions of the power supply.
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