| 摘要 |
<p>PURPOSE:To prevent malfunction due to fluctuation of power supply generated when inserting a stopcock easily by supplying current to an electronic circuit board where the stopcock is inserted at least in two stages from a mother board while shifting time. CONSTITUTION:When inserting a mother board 4 into an electronic circuit board 12 with a stopcock, a long terminal 5 of the mother board 4, a ground terminal 7, a power-supply layer 14 for the long terminal of the electronic circuit plate 12, and a ground layer 20 are connected one another,m rush current is introduced into a pass-capacitor 19 through a diode 15, and a transient electricity drop occurs at a power-supply layer 9-1 for long terminal of the mother board 4. Then, a short terminal 6 of the mother board 4 and a power-supply layer 16 for the short terminal are connected and power begins to be supplied to the electronic circuit board 12, thus preventing malfunction of another electronic circuit boards 13 in operation due to fluctuation of power supply caused when a stopcock of the electronic circuit board 12 is inserted easily.</p> |
