Jesse Log - Revision history

Telephoneman at 21:06, 11 November 2018

2018-11-11T21:06:47Z

← Older revision		Revision as of 21:06, 11 November 2018
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	<html><iframe width="600" height="600" src="https://osedev.org/wiki/Jesse?start=7/1/2018"></iframe></html>		<html><iframe width="600" height="600" src="https://osedev.org/wiki/Jesse?start=7/1/2018"></iframe></html>
			=Sunday, Nov.11 2018=
			Reading up on low voltage buck boost implementations.

	=Sun, Nov.4 2018=		=Sun, Nov.4 2018=
	De-soldering capacitors from old circuitry to attempt to make small scale buck converter.		De-soldering capacitors from old circuitry to attempt to make small scale buck converter.

Telephoneman at 13:20, 5 November 2018

2018-11-05T13:20:25Z

← Older revision		Revision as of 13:20, 5 November 2018
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	<html><iframe width="600" height="600" src="https://osedev.org/wiki/Jesse?start=7/1/2018"></iframe></html>		<html><iframe width="600" height="600" src="https://osedev.org/wiki/Jesse?start=7/1/2018"></iframe></html>
			=Sun, Nov.4 2018=
			De-soldering capacitors from old circuitry to attempt to make small scale buck converter.
	=Fri, Oct.26 2018=		=Fri, Oct.26 2018=
	Reading [this guide http://electronics-diy.com/12v-power-supply.php] For constructing a 12 volt 20 amp solid state power supply. This guide is much more understandable and its also cheaper (most expensive item is transformer). They require input transformers to be safely used with wall current. This is NOT a buck converter, just what appears to be the simplest and cheapest approach for the power supply specifications required.		Reading [this guide http://electronics-diy.com/12v-power-supply.php] For constructing a 12 volt 20 amp solid state power supply. This guide is much more understandable and its also cheaper (most expensive item is transformer). They require input transformers to be safely used with wall current. This is NOT a buck converter, just what appears to be the simplest and cheapest approach for the power supply specifications required.

Telephoneman: /* Fri, Oct.26 2018 */

2018-10-26T13:20:14Z

Fri, Oct.26 2018

← Older revision		Revision as of 13:20, 26 October 2018
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	Reading [this guide http://electronics-diy.com/12v-power-supply.php] For constructing a 12 volt 20 amp solid state power supply. This guide is much more understandable and its also cheaper (most expensive item is transformer). They require input transformers to be safely used with wall current. This is NOT a buck converter, just what appears to be the simplest and cheapest approach for the power supply specifications required.		Reading [this guide http://electronics-diy.com/12v-power-supply.php] For constructing a 12 volt 20 amp solid state power supply. This guide is much more understandable and its also cheaper (most expensive item is transformer). They require input transformers to be safely used with wall current. This is NOT a buck converter, just what appears to be the simplest and cheapest approach for the power supply specifications required.

	I've seen people on open source ecology using [~~this cctv power supply~~ https://www.amazon.com/Switching-Transformer-Regulated-Computer-Project/dp/B00ANFJ26U/ref=sr_1_9?ie=UTF8&qid=1540559107&sr=8-9&keywords=24+Volt+Dc+Transformer] that can be had for only $20. This is the current price to beat if we want a cheaper built supply, as these things work very well.		I've seen people on open source ecology using [https://www.amazon.com/Switching-Transformer-Regulated-Computer-Project/dp/B00ANFJ26U/ref=sr_1_9?ie=UTF8&qid=1540559107&sr=8-9&keywords=24+Volt+Dc+Transformer this cctv power supply ] that can be had for only $20. This is the current price to beat if we want a cheaper built supply, as these things work very well.

	=Thu, Oct.18 2018=		=Thu, Oct.18 2018=

Telephoneman: /* Fri, Oct.26 2018 */

2018-10-26T13:18:58Z

Fri, Oct.26 2018

← Older revision		Revision as of 13:18, 26 October 2018
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	=Fri, Oct.26 2018=		=Fri, Oct.26 2018=
	Reading [this guide http://electronics-diy.com/12v-power-supply.php] For constructing a 12 volt 20 amp solid state power supply. This guide is much more understandable and its also cheaper (most expensive item is transformer). They require input transformers to be safely used with wall current. This is NOT a buck converter, just what appears to be the simplest and cheapest approach for the power supply specifications required.		Reading [this guide http://electronics-diy.com/12v-power-supply.php] For constructing a 12 volt 20 amp solid state power supply. This guide is much more understandable and its also cheaper (most expensive item is transformer). They require input transformers to be safely used with wall current. This is NOT a buck converter, just what appears to be the simplest and cheapest approach for the power supply specifications required.

			I've seen people on open source ecology using [this cctv power supply https://www.amazon.com/Switching-Transformer-Regulated-Computer-Project/dp/B00ANFJ26U/ref=sr_1_9?ie=UTF8&qid=1540559107&sr=8-9&keywords=24+Volt+Dc+Transformer] that can be had for only $20. This is the current price to beat if we want a cheaper built supply, as these things work very well.

	=Thu, Oct.18 2018=		=Thu, Oct.18 2018=

Telephoneman at 13:05, 26 October 2018

2018-10-26T13:05:36Z

← Older revision		Revision as of 13:05, 26 October 2018
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	<html><iframe width="600" height="600" src="https://osedev.org/wiki/Jesse?start=7/1/2018"></iframe></html>		<html><iframe width="600" height="600" src="https://osedev.org/wiki/Jesse?start=7/1/2018"></iframe></html>

			=Fri, Oct.26 2018=
			Reading [this guide http://electronics-diy.com/12v-power-supply.php] For constructing a 12 volt 20 amp solid state power supply. This guide is much more understandable and its also cheaper (most expensive item is transformer). They require input transformers to be safely used with wall current. This is NOT a buck converter, just what appears to be the simplest and cheapest approach for the power supply specifications required.

	=Thu, Oct.18 2018=		=Thu, Oct.18 2018=

Telephoneman at 19:51, 18 October 2018

2018-10-18T19:51:09Z

← Older revision		Revision as of 19:51, 18 October 2018
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	<html><iframe width="600" height="600" src="https://osedev.org/wiki/Jesse?start=7/1/2018"></iframe></html>		<html><iframe width="600" height="600" src="https://osedev.org/wiki/Jesse?start=7/1/2018"></iframe></html>

			=Thu, Oct.18 2018=
			Reading [https://www.powerelectronicsnews.com/problems-solutions/the-buck-regulator-power-supply-design-tutorial-part-2-1 this guide] on buck circuit design.

	=Mon Oct.15 2018=		=Mon Oct.15 2018=

Telephoneman: /* Mon Oct.15 2018 */

2018-10-15T14:36:58Z

Mon Oct.15 2018

← Older revision		Revision as of 14:36, 15 October 2018
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	=Mon Oct.15 2018=		=Mon Oct.15 2018=
	Testing mosfets with arduino pulse and mosfet driver (powered by 9v 1 amp rated transformer rectified to around 12v dc.)		Testing mosfets with arduino pulse and mosfet driver (powered by 9v 1 amp rated transformer rectified to around 12v dc.)

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Telephoneman at 14:36, 15 October 2018

2018-10-15T14:36:42Z

← Older revision		Revision as of 14:36, 15 October 2018
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	<html><iframe width="600" height="600" src="https://osedev.org/wiki/Jesse?start=7/1/2018"></iframe></html>		<html><iframe width="600" height="600" src="https://osedev.org/wiki/Jesse?start=7/1/2018"></iframe></html>

			=Mon Oct.15 2018=
			Testing mosfets with arduino pulse and mosfet driver (powered by 9v 1 amp rated transformer rectified to around 12v dc.)
			{{YoutubePopup\|sglBBMJqtbY\|3}}

	=Fri Oct.12 2018=		=Fri Oct.12 2018=

Telephoneman: /* Fri Oct.12 2018 */

2018-10-13T01:22:02Z

Fri Oct.12 2018

← Older revision		Revision as of 01:22, 13 October 2018
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	Also found [https://www.radio-electronics.com/info/data/capacitor/capacitor_types.php this] page on the different types of capacitors one may use or salvage.		Also found [https://www.radio-electronics.com/info/data/capacitor/capacitor_types.php this] page on the different types of capacitors one may use or salvage.

			Setup a big scary full bridge rectifier capacitor circuit with the 112v from the wall. The capacitor and full bridge rectifier were salvaged from atx power supplies. cap is (560uf 200v electrolytic). This outputs 150 volts DC, and if you make it to this point yourself, always discharge your capacitors or install a bleeder resistor across the terminals, as these things store enough charge to mess you up as well as to blast out a serious spark. Set up small 12V 1 amp power source to drive the IRF540N, which will then drive the IRF250N for the power to our buck circuit.

			[https://www.circuitlab.com/ this site ] is a useful online circuit simulator that allows easy datasheet and search integration.

	=Fri Oct.5 2018=		=Fri Oct.5 2018=

Telephoneman: /* Fri Oct.12 2018 */

2018-10-12T19:27:59Z

Fri Oct.12 2018

← Older revision		Revision as of 19:27, 12 October 2018
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	Today im using a small rectified one amp twelve volt transformer to drive some mosfets with an arduino pulse and observe the results.		Today im using a small rectified one amp twelve volt transformer to drive some mosfets with an arduino pulse and observe the results.

			Also found [https://www.radio-electronics.com/info/data/capacitor/capacitor_types.php this] page on the different types of capacitors one may use or salvage.

	=Fri Oct.5 2018=		=Fri Oct.5 2018=