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	<title>delabs Schematics - Electronic Circuit &#187; 555-Circuits</title>
	<atom:link href="http://www.electronics-circuits.com/tech/category/555-circuits/feed/" rel="self" type="application/rss+xml" />
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	<description>Electronic Schematic Diagrams of delabs</description>
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		<title>555 multivibrator like power oscillator</title>
		<link>http://www.electronics-circuits.com/tech/2010/07/555-multivibrator-like-power-oscillator/</link>
		<comments>http://www.electronics-circuits.com/tech/2010/07/555-multivibrator-like-power-oscillator/#comments</comments>
		<pubDate>Thu, 22 Jul 2010 16:09:00 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[555-Circuits]]></category>

		<guid isPermaLink="false">http://www.electronics-circuits.com/tech/2010/07/555-multivibrator-like-power-oscillator/</guid>
		<description><![CDATA[This is dual 555 multivibrator like power oscillator. This is my contraption and conception but couple of decades old. It appears to have errors. It worked but the document fixing after design worked, not done. This can be used to make a small inverter, for powering 230V gadgets of low power. The transformer is used <a href='http://www.electronics-circuits.com/tech/2010/07/555-multivibrator-like-power-oscillator/'>Read More ...</a>]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>InfraRed LED Flasher for Optical Switch</title>
		<link>http://www.electronics-circuits.com/tech/2008/12/infrared-led-flasher-for-optical-switch/</link>
		<comments>http://www.electronics-circuits.com/tech/2008/12/infrared-led-flasher-for-optical-switch/#comments</comments>
		<pubDate>Sun, 14 Dec 2008 07:30:00 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[555-Circuits]]></category>
		<category><![CDATA[LED-Circuits]]></category>

		<guid isPermaLink="false">http://www.electronics-circuits.com/tech/2008/12/infrared-led-flasher-for-optical-switch/</guid>
		<description><![CDATA[This circuit is used to detect objects by reflected infrared light. It can be built into a cylindrical enclosure just like an inductive proximity switch. This is also useful as a level detector for colored liquids like oil. This has some immunity to ambient sunlight as it detects ac pulses. IC 555 is used as <a href='http://www.electronics-circuits.com/tech/2008/12/infrared-led-flasher-for-optical-switch/'>Read More ...</a>]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>LM555 Voltage Doubler</title>
		<link>http://www.electronics-circuits.com/tech/2007/02/lm555-voltage-doubler/</link>
		<comments>http://www.electronics-circuits.com/tech/2007/02/lm555-voltage-doubler/#comments</comments>
		<pubDate>Fri, 02 Feb 2007 14:33:00 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[555-Circuits]]></category>
		<category><![CDATA[LED-Circuits]]></category>
		<category><![CDATA[Power-Supplies]]></category>

		<guid isPermaLink="false">http://www.electronics-circuits.com/tech/2007/02/lm555-voltage-doubler/</guid>
		<description><![CDATA[This circuit shows the voltage doubler working with a 555. LM555 has good drive 200mA, both Vcc and Gnd. LM555 &#8211; Timer LM555 Timer Circuits Voltage Multipliers Jochens High Voltage Page]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Voltage to Current Convertor using LM723</title>
		<link>http://www.electronics-circuits.com/tech/2006/10/voltage-to-current-convertor-using-lm723/</link>
		<comments>http://www.electronics-circuits.com/tech/2006/10/voltage-to-current-convertor-using-lm723/#comments</comments>
		<pubDate>Thu, 12 Oct 2006 01:45:00 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[555-Circuits]]></category>
		<category><![CDATA[Opamp-Circuits]]></category>
		<category><![CDATA[Process Control]]></category>

		<guid isPermaLink="false">http://www.electronics-circuits.com/tech/2006/10/voltage-to-current-convertor-using-lm723/</guid>
		<description><![CDATA[his Circuit converts a voltage control output from a Process Controller to be converted into a Current Control if the AC-Drive or Valve needs a Current Control Signal. This is a three wire voltage to current loop converter. The 1-5 V DC is attenuated and fed to pin 5 LM723 opamp section which tries to <a href='http://www.electronics-circuits.com/tech/2006/10/voltage-to-current-convertor-using-lm723/'>Read More ...</a>]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>555 based Reset Generator</title>
		<link>http://www.electronics-circuits.com/tech/2005/11/555-based-reset-generator/</link>
		<comments>http://www.electronics-circuits.com/tech/2005/11/555-based-reset-generator/#comments</comments>
		<pubDate>Thu, 24 Nov 2005 03:19:00 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[555-Circuits]]></category>
		<category><![CDATA[Embedded-Systems]]></category>

		<guid isPermaLink="false">http://www.electronics-circuits.com/tech/2005/11/555-based-reset-generator/</guid>
		<description><![CDATA[You must have read all the circuits and explanation on the other pages at delabs to understand this, as i cannot repeat the same thing as i have done it more than once already. The circuit is a 555 monostable, The push-switch is to trigger and generate a reset pulse for uC. The diode is <a href='http://www.electronics-circuits.com/tech/2005/11/555-based-reset-generator/'>Read More ...</a>]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Frequency Divider 74HCT4040</title>
		<link>http://www.electronics-circuits.com/tech/2004/11/frequency-divider-74hct4040/</link>
		<comments>http://www.electronics-circuits.com/tech/2004/11/frequency-divider-74hct4040/#comments</comments>
		<pubDate>Sat, 06 Nov 2004 10:45:00 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[555-Circuits]]></category>
		<category><![CDATA[Digital-Circuits]]></category>

		<guid isPermaLink="false">http://www.electronics-circuits.com/tech/2004/11/frequency-divider-74hct4040/</guid>
		<description><![CDATA[U1 7555 is a CMOS version of 555. The 555 here is in Astable Oscillator mode, C1 and C4 are decoupling capacitors 0.1uF value, ceramic disc. The output is around 100kHz, If C3 is plastic or mica the frequency output will be stable with temperature. It is better to use a crystal oscillator. The 555 <a href='http://www.electronics-circuits.com/tech/2004/11/frequency-divider-74hct4040/'>Read More ...</a>]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Astable Multivibrator with 555 Timer</title>
		<link>http://www.electronics-circuits.com/tech/2004/10/astable-multivibrator-with-555-timer/</link>
		<comments>http://www.electronics-circuits.com/tech/2004/10/astable-multivibrator-with-555-timer/#comments</comments>
		<pubDate>Sat, 30 Oct 2004 01:09:00 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[555-Circuits]]></category>
		<category><![CDATA[Oscillators]]></category>

		<guid isPermaLink="false">http://www.electronics-circuits.com/tech/2004/10/astable-multivibrator-with-555-timer/</guid>
		<description><![CDATA[The 555 Astable oscillator gives a square wave output at pin 3, The output drives two LEDs, LED1 lights up when pin 3 is low and LED2 when pin 3 is high. de_gads_top The 555 can source (LED2) or Sink (LED1) upto 200mA. It can even drive a small motor or lamp with diodes added <a href='http://www.electronics-circuits.com/tech/2004/10/astable-multivibrator-with-555-timer/'>Read More ...</a>]]></description>
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		<slash:comments>0</slash:comments>
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