| 摘要 |
PURPOSE:To miniaturize the device, to reduce the cost, and to prevent heat, generation by continuously stably supplying a large current only in the time zone when the frequency in use of a load is high. CONSTITUTION:A power source part A is operated to supply a certain DC voltage to a communication equipment 20. In the specific time zone when the frequency in use of the communication equipment 20 is high, the power source part A and an additional power source part B are operated in parallel, and currents Are supplied from them to the communication equipment 20. A driving circuit 23 and a switching circuit 21 in the additional power source part B are operated by the indication signal from a clock and storage circuit 24, and a stabilized DC voltage is supplied from a constant voltage circuit 22 to the communication equipment 20 through a diode D2 by the switching voltage. |
