| 摘要 |
<p>The present invention relates to the analog / digital converter which converts received analog signals to digital signals; including the power supply part that converts input voltage incoming from an outside power source to DC voltage that above analog / digital converter needs, and provides the DC voltage to the above analog / digital converter. The above power supply part is provided with a digital repeater that cut offs the above DC voltage provided to the above analog / digital converter when it detects the malfunction of the above input voltage. The digital repeater according to the invention is effective in removing the digital circuit damage caused by spurious wave due to the power trouble.</p> |
