| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a multiple output type power supply device which can produce a DC output voltage containing no noise in the DC output voltage waveform at the startup. <P>SOLUTION: Since a second DC output voltage regulation circuit 24 regulates to output the second DC output voltage V<SB POS="POST">OUT2</SB>from a second double rectification voltage V<SB POS="POST">BR2</SB>of a multiple stage double rectification circuit 16 in the way of step-up, even if the input impedance drops suddenly due to operation start of the second DC output voltage regulation circuit 24 in the startup section SU or the soft startup section SS and the influence thereof appears as a drop in the first double rectification voltage V<SB POS="POST">BR1</SB>, the first DC output voltage V<SB POS="POST">OUT1</SB>regulated by a first DC output voltage regulation circuit 22 by using the first double rectification voltage V<SB POS="POST">BR1</SB>as the original voltage is not affected until the voltage variation noise Vn included in the original voltage goes below the first DC output voltage V<SB POS="POST">OUT1</SB>. <P>COPYRIGHT: (C)2012,JPO&INPIT |
