Comparing The NE555 Timer And LM386 Amplifier As Inductorless DC To DC Converters

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mediatechnology
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Comparing The NE555 Timer And LM386 Amplifier As Inductorless DC To DC Converters

Post by mediatechnology » Mon Jan 14, 2019 2:02 pm

"Comparing The NE555 Timer And LM386 Amplifier As Inductorless DC To DC Converters," Petre Petrov, Electronic Design, March 6 2015.

https://proaudiodesignforum.com/images/ ... erters.pdf

The author compares the efficiency of 555 timer inductorless converters to those based on the low-cost LM386 audio power amp.

The final figure shows a bipolar supply based on an LM386.

Image
"Comparing The NE555 Timer And LM386 Amplifier As Inductorless DC To DC Converters," Petre Petrov, Electronic Design, March 6 2015.

The NJM386 is available from Japan Radio in DIP packaging: https://www.njr.com/semicon/products/NJM386.html
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JR.
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Re: Comparing The NE555 Timer And LM386 Amplifier As Inductorless DC To DC Converters

Post by JR. » Mon Jan 14, 2019 3:18 pm

ummm why?

JR

[edit-- to get published? /edit]

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Re: Comparing The NE555 Timer And LM386 Amplifier As Inductorless DC To DC Converters

Post by mediatechnology » Mon Jan 14, 2019 4:01 pm

You'll have to ask him. I do see the word inductorless repeated.

You might be surprised to know that this is one of the site's consistent top 50 pdf downloads: viewtopic.php?f=12&t=426

And you'll be pleased to know that the circuits and old datasheets that raise your ire are usually the most popular.
https://ka-electronics.com
Learn to code. Recognize media gaslighting.
Sandmann v. Washington Post Complaint https://proaudiodesignforum.com/images/ ... plaint.pdf
CBS News chief foreign affairs correspondent Lara Logan: "That’s not journalism, it’s horseshit" https://www.zerohedge.com/news/2019-02- ... ts-are-now
"Nick Sandman: The Truth in 15 minutes" https://youtu.be/lSkpPaiUF8s

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JR.
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Re: Comparing The NE555 Timer And LM386 Amplifier As Inductorless DC To DC Converters

Post by JR. » Mon Jan 14, 2019 4:13 pm

mediatechnology wrote:
Mon Jan 14, 2019 4:01 pm
You'll have to ask him. I do see the word inductorless repeated.
There are off the shelf charge pump ICs to make slick PS... Some low voltage digital interface chips build in charge pumps to deliver required output voltage. ...
You might be surprised to know that this is one of the site's consistent top 50 pdf downloads: viewtopic.php?f=12&t=426
the 555 is an iconic chip... I used one as a junior tech back in the 70s to make a time base for a yogurt timer...(I fed the 555 clock to a cmos ripple counter to make a 12 hour timer).

JR

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Re: Comparing The NE555 Timer And LM386 Amplifier As Inductorless DC To DC Converters

Post by mediatechnology » Mon Jan 14, 2019 4:24 pm

There are off the shelf charge pump ICs to make slick PS... Some low voltage digital interface chips build in charge pumps to deliver required output voltage. ...
Tell these guys: https://www.facebook.com/Arduino4Projec ... =2&theater

It's actually a fairly popular article and it looks like Duck Duck Go indexed this site within minutes: https://duckduckgo.com/?q=Comparing+The ... ser&ia=web
https://ka-electronics.com
Learn to code. Recognize media gaslighting.
Sandmann v. Washington Post Complaint https://proaudiodesignforum.com/images/ ... plaint.pdf
CBS News chief foreign affairs correspondent Lara Logan: "That’s not journalism, it’s horseshit" https://www.zerohedge.com/news/2019-02- ... ts-are-now
"Nick Sandman: The Truth in 15 minutes" https://youtu.be/lSkpPaiUF8s

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