MC34063(NE555)

Go To Last Post
24 posts / 0 new
Author
Message
#1
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Hai All

 

This thread related to

https://www.avrfreaks.net/forum/...

https://www.avrfreaks.net/forum/...

 

Probably this simple way to create the DC-DC converter.Since no NE555 as step-up converter.

Cause the HVPP/Parallel programmer only need HV(11.5-12.5 VDC) and required small current only.

 

As replacement for MC34063 for AT89X programmer with "USB"(only 5 VDC from USB for power supply).

buckboostconv

 

Above picture is NE555 DC up converter.

 

Micro-CAP didn't had MCU simulation,So I used on NE-555 and Signal sources to replaced the MCU.

 

Did someone also already made this DC up converter ? Any info will be appreciated.

www.tokopedia.com/madagang for cheap electronics and manuscript

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Search for voltage doubler / trippler circuit, ARRL handbook perhaps! 

 

 

Keys to wealth:

Invest for cash flow, not capital gains!

Wealth is attracted, not chased! 

Income is proportional to how many you serve!

If you want something you've never had...

...you must be willing to do something you've never done!

Lets go Brandon!

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

ki0bk wrote:

Search for voltage doubler / trippler circuit, ARRL handbook perhaps! 

I already read at ARRL but non of that equal.At chapter power supply(for tubes).

www.tokopedia.com/madagang for cheap electronics and manuscript

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

 

Jeckson wrote:

I already read at ARRL but non of that equal.At chapter power supply(for tubes).

The concept is the same, feed in an AC signal, and capture the peaks to boost the voltage up, the more diodes/caps, the higher the voltage.....

 

duplicate this x2 circuit for x3, x4, x5......

Your circuit is x3, so 5v becomes 15v, then zener regulates back to 12v needed for programming.

 

Jim

edit:  added circuit

 

 

Keys to wealth:

Invest for cash flow, not capital gains!

Wealth is attracted, not chased! 

Income is proportional to how many you serve!

If you want something you've never had...

...you must be willing to do something you've never done!

Lets go Brandon!

Last Edited: Fri. Jan 14, 2022 - 02:20 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

ki0bk wrote:

Jeckson wrote:

I already read at ARRL but non of that equal.At chapter power supply(for tubes).

The concept is the same, feed in an AC signal, and capture the peaks to boost the voltage up, the more diodes/caps, the higher the voltage.....

 

Thank’s Ki0bk but look at the P1 and P2 also the entire schematic.

www.tokopedia.com/madagang for cheap electronics and manuscript

Last Edited: Fri. Jan 14, 2022 - 02:21 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0


 

 

Keys to wealth:

Invest for cash flow, not capital gains!

Wealth is attracted, not chased! 

Income is proportional to how many you serve!

If you want something you've never had...

...you must be willing to do something you've never done!

Lets go Brandon!

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Cockroft and Walton called; they want their multiplier back!

 

Neil

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Why not simply use a very low cost/low current booster?

 

https://www.onsemi.com/pdf/datas...

When in the dark remember-the future looks brighter than ever.   I look forward to being able to predict the future!

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

avrcandies wrote:

Why not simply use a very low cost/low current booster?

 

https://www.onsemi.com/pdf/datas...

Another option.Where Exactly  we could found the Chip ?

www.tokopedia.com/madagang for cheap electronics and manuscript

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Good Ol' Pete has ideas:              ChargePumps

 

A Hex inverter may be worth experimenting with. I have 74hc14n 

Brawndo's got what plants crave... It's got electrolytes!

Last Edited: Sun. Jan 16, 2022 - 01:56 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Plexd wrote:

Good Ol' Pete has ideas:              ChargePumps

 

I used AT89 and NE555.yes

www.tokopedia.com/madagang for cheap electronics and manuscript

Last Edited: Mon. Jan 17, 2022 - 07:43 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Jeckson wrote:
Cause the HVPP/Parallel programmer only need HV(11.5-12.5 VDC)
13 volts for older PIC

+5v to +12v converter by Roman Black

...

I was contacted by hobby PIC programmer legend Myke Predko about designing a simple and cheap circuit to produce the 13v Vpp voltage needed to program PIC chips from a standard 5v regulated supply. This would eliminate the need for an smps 13v converter chip.

...

 

"Dare to be naïve." - Buckminster Fuller

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Last Edited: Sun. Jan 16, 2022 - 04:29 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

The NE555 gebnerated the pulse then microcontroller pin added the ~5 VDC pulse to made the other micro's in program mode(11.5-12.5 VDC).

www.tokopedia.com/madagang for cheap electronics and manuscript

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Jeckson wrote:

Cause the HVPP/Parallel programmer only need HV(11.5-12.5 VDC) and required small current only.

 

Do you know an estimated maximum value of this small current?

 

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Do you know an estimated maximum value of this small current?

Basically nothing, not even 1 ma drawn by the HV reset pin.  There may be loading elsewhere, if you have other things on the pin.   Put your bus bars away! 

When in the dark remember-the future looks brighter than ever.   I look forward to being able to predict the future!

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Think a little about a chip security. If you do, then Vin will be 15V any you will use a 12V regulator.

 

Of course, you can try any petty multiplier, perhaps it will work.

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

KerimF wrote:

Jeckson wrote:

 

Cause the HVPP/Parallel programmer only need HV(11.5-12.5 VDC) and required small current only.

 

 

 

Do you know an estimated maximum value of this small current?

 

At the Attachment

Attachment(s): 

www.tokopedia.com/madagang for cheap electronics and manuscript

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

How you intend to meet this requirements, ie. to hit the right voltage?

Multipliers are notorious high voltage on no current, but drop dead quickly on any current.

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 1


I heard of a tippler that uses NE555. I drew it on LTspice as an example which could be another useful option for the case in question on this thread.

 

Note:

The Add Media button is not displayed on my editor toolbar. Also, copy then paste on the message window didn't work.

 

* Allow me Kerim. Ross *

 

 

Attachment(s): 

Last Edited: Tue. Jan 18, 2022 - 11:46 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

KerimF wrote:
The Add Media button is not displayed on my editor toolbar. Also, copy then paste on the message window didn't work.

See: https://www.avrfreaks.net/forum/image-cut-and-paste-broken-again

Top Tips:

  1. How to properly post source code - see: https://www.avrfreaks.net/comment... - also how to properly include images/pictures
  2. "Garbage" characters on a serial terminal are (almost?) invariably due to wrong baud rate - see: https://learn.sparkfun.com/tutorials/serial-communication
  3. Wrong baud rate is usually due to not running at the speed you thought; check by blinking a LED to see if you get the speed you expected
  4. Difference between a crystal, and a crystal oscillatorhttps://www.avrfreaks.net/comment...
  5. When your question is resolved, mark the solution: https://www.avrfreaks.net/comment...
  6. Beginner's "Getting Started" tips: https://www.avrfreaks.net/comment...
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

KerimF wrote:

I heard of a tippler that uses NE555. I drew it on LTspice as an example which could be another useful option for the case in question on this thread.

 

Note:

The Add Media button is not displayed on my editor toolbar. Also, copy then paste on the message window didn't work.

 

Attachment(s): 

Image icon SuppX3_01-12V-3mA.png

Package icon SuppX3_01-12V-3mA.zip

 

yes Little bit similiar

 

www.tokopedia.com/madagang for cheap electronics and manuscript

Last Edited: Tue. Jan 18, 2022 - 11:13 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Thank you Ross for posting the attached circuit (post #20).

 

I searched and read some of your recent jokes though I didn't comment.

 

(Note: Ross is valusoft)

 

Last Edited: Wed. Jan 19, 2022 - 10:34 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 1

KerimF wrote:

Thank you Ross for posting the attached circuit (post #20).

 

I searched and read some of your recent jokes though I didn't comment.

 

(Note: Ross is valusoft)

yes

www.tokopedia.com/madagang for cheap electronics and manuscript