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	<title>oscilloscope &#8211; Olafsen &#8211; Tech and more</title>
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		<title>Measurements of DC-DC Converters</title>
		<link>https://marzocchi.net/wp/2025/05/measurements-of-dc-dc-converters/</link>
		
		<dc:creator><![CDATA[Olaf Marzocchi]]></dc:creator>
		<pubDate>Thu, 22 May 2025 14:21:57 +0000</pubDate>
				<category><![CDATA[Electronics]]></category>
		<category><![CDATA[dc-dc]]></category>
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					<description><![CDATA[Oscilloscope tests to check shape, ripple, accuracy Update: for some more detailed tests, check&#160;this article. I bought some DC-DC converters to make a custom car USB-charger for my phone, able to supply more than 1.5 A on each USB port, with a good filtering of the spikes from the ignition coils and with low noise. [&#8230;]]]></description>
		
		
		
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		<title>Oscilloscope With an Audio Card</title>
		<link>https://marzocchi.net/wp/2024/12/oscilloscope-with-an-audio-card/</link>
		
		<dc:creator><![CDATA[Olaf Marzocchi]]></dc:creator>
		<pubDate>Fri, 13 Dec 2024 09:40:28 +0000</pubDate>
				<category><![CDATA[Electronics]]></category>
		<category><![CDATA[audio-card]]></category>
		<category><![CDATA[oscilloscope]]></category>
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					<description><![CDATA[Description of a circuit able to feed signals into an audio card and to use it as oscilloscope Audio cards are like oscilloscopes, more or less, but they are not provided with special controls and are limited to a narrow band of frequencies, usually 20 Hz to 20 kHz or at most 45 kHz. A [&#8230;]]]></description>
		
		
		
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