| 摘要 |
PURPOSE: A circuit for reducing switching noises of a DC/DC(Direct Current) converter is provided to reduce noises of load output voltage, by inserting a condenser into both ends of a switching element in a shortest distance, to prevent a wrong operation of an apparatus applying the DC/DC converter, and to protect elements. CONSTITUTION: A circuit for reducing switching noises of a DC/DC(Direct Current) converter comprises a first switch and a second switch. The first switch switches input voltage to boost up the input voltage. The second switch switches output voltage to supply the switched output voltage to load. The circuit for reducing switching noises of a DC/DC converter eliminates ripples of DC voltage by being operated as an inductance component and an L-C filter, generated from a ground line by inserting a condenser into both ends of the first and the second switch in the shortest distance. The condenser applies a ceramic condenser, and a capacity of the ceramic condenser is in proportion to the inductance component generated from the ground line.
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