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Author Topic: Solid state Bedini charger from John Peters  (Read 108253 times)

Offline crowclaw

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  • Posts: 324
Re: Solid state Bedini charger from John Peters
« Reply #105 on: June 06, 2010, 08:44:54 PM »
Hi Crowclaw, tx for the reply. I'm keen to try your circuit. As a newbie it's a variation of Daftmans circuit (on energetix) which I've been playing with. Do you have any pics of your working setup? My end goal is to help a poor rural community pulse charge their battery banks using lower power (therefore cost) PV panels. I will need to parallel up those high-side switches! Any advice would be appreciated. Tx for sharing your knowledge as you do!

Hi heathzap, most of my experimental projects tend to be tested and then dismantled as the project progresses, however I have been using a four parallel version of my BSP452 I posted previously. For this design I use four  identical 22R small air cored inductors each connected to it's own BSP452 and each having a diode output. The anodes are all common ed up and each BSP452 inputs  are also common connected to the 555 timer IC's output. This circuit then provides four times the BEMF into the charge cell. The BSP's inputs are high impedance so provide negligible loading from the timers output, and each output is also matched and summed when presented to the charging cell. If you haven't already done so put together a 555 timer with both frequency and mark space ratio control Potts. The timer circuit then gives you maximum flexability in controlling the best charging method for the type of cell in use. I will post a pic of this set up as soon as I can.

Free Energy | searching for free energy and discussing free energy


Offline heathzap

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Re: Solid state Bedini charger from John Peters
« Reply #106 on: June 07, 2010, 07:42:26 PM »
Hi Crowclaw, thanks for the added info. I'll be trying this config during the next couple of weeks and hope to post some results. Thanks once again for sharing your expertise!

Offline heathzap

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Re: Solid state Bedini charger from John Peters
« Reply #107 on: June 07, 2010, 08:40:19 PM »
@Crowclaw: Further to my last, I have access to the ITS4140 high-side switch. Here is the link: http://www.infineon.com/dgdl/ITS4140N_DS_Rev21.pdf?folderId=db3a304412b407950112b408e8c90004&fileId=db3a304412b407950112b4298dc34130

Seems that it should do the business but any thoughts would be appreciated.

Regards

Free Energy | searching for free energy and discussing free energy

Re: Solid state Bedini charger from John Peters
« Reply #107 on: June 07, 2010, 08:40:19 PM »
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Offline crowclaw

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Re: Solid state Bedini charger from John Peters
« Reply #108 on: June 07, 2010, 09:22:25 PM »
@Crowclaw: Further to my last, I have access to the ITS4140 high-side switch. Here is the link: http://www.infineon.com/dgdl/ITS4140N_DS_Rev21.pdf?folderId=db3a304412b407950112b408e8c90004&fileId=db3a304412b407950112b4298dc34130

Seems that it should do the business but any thoughts would be appreciated.

Regards
Hi heathzap, Yes worth a try... these devices adapt easily. Make sure your drive signal switches at or very near ground, a general purpose signal type mosfet would be ideal at the input to achieve this purpose. These devices draw very little gate current and are high impedance of course so can be paralleld up if needed. One last point... depending on power dissipation include a heatsink. I've used short lengths of copper water pipe with a flattened tab formed out of one end and soldered to the tab. You can use plastic type pipe fittings to secure the pipe to the project chassis, remember the tab is electrically connected. Have fun

Offline heathzap

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Re: Solid state Bedini charger from John Peters
« Reply #109 on: June 08, 2010, 12:30:56 PM »
@Crowclaw: as always, thanks for the advice!

Free Energy | searching for free energy and discussing free energy

Re: Solid state Bedini charger from John Peters
« Reply #109 on: June 08, 2010, 12:30:56 PM »
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Offline mscoffman

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Re: Solid state Bedini charger from John Peters
« Reply #110 on: June 08, 2010, 04:18:01 PM »
cycle time = time "on" + time "off"

ITS4140  cycle tm = 300us = .30ms =>  3.3KHz.
BSP452   cycle tm = 250us = .25ms =>  4.0KHz.


Offline heathzap

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  • Posts: 6
Re: Solid state Bedini charger from John Peters
« Reply #111 on: June 16, 2010, 12:06:06 PM »
@Crowclaw: I have ordered some BSP's. Just one further question is that in an earlier thread you mention inductors of 2R2 and elsewhere you said 22R. Could you clarify this? Maybe you have some further details on what you have tried? Appreciate it. Tx

Free Energy | searching for free energy and discussing free energy

Re: Solid state Bedini charger from John Peters
« Reply #111 on: June 16, 2010, 12:06:06 PM »
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Offline guruji

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    • http://andyborg.tripod.com
Re: Solid state Bedini charger from John Peters
« Reply #112 on: August 13, 2010, 01:06:49 PM »
Hi Alpesh this is the solid bedini circuit

Offline guruji

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    • http://andyborg.tripod.com
Secondary
« Reply #113 on: November 08, 2010, 09:04:40 PM »
Is there someone who did a secondary coil to the solid state bedini?

Free Energy | searching for free energy and discussing free energy

Secondary
« Reply #113 on: November 08, 2010, 09:04:40 PM »
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