Hv anyone built the OSHONSOFT Intelligent NiCd/NiMH Charger/Cycler with 2x16 Ch. Disp - Electronic Circuits Projects Diagrams Free

pasanlaksiri · 29th October 2007, 06:31 AM

Have anyone built the Oshonsoft charger yet. Coz its really looks like it has some intelligence

Link> http://www.oshonsoft.com/picchargerlcd.html

Link> http://www.oshonsoft.com/picchargerlcd.html

Hv any one built this b4 ? How is it? superb or not that much use full?

mvs sarma · 29th October 2007, 06:49 AM

Nice to study one such item. Thanks to Pasanlaksiri. I am reminded of a radio design by Siemens called "Radio receiver with component maximum"
Processor controlled Chargers are always welcome.
Any way, if the battery would have been Li-ion, it might call for tighter charge control and such complex controll would be purposeful..
But when these Ni-cd and Ni-Mh could be charged on Constant current basis and manage well- should we go for one such?

pasanlaksiri · 29th October 2007, 07:02 AM

Quote:

Originally Posted by mvs sarma

Nice to study one such item. Thanks to Pasanlaksiri. I am reminded of a radio design by Siemens called "Radio receiver with component maximum"
Processor controlled Chargers are always welcome.
Any way, if the battery would have been Li-ion, it might call for tighter charge control and such complex controll would be purposeful..
But when these Ni-cd and Ni-Mh could be charged on Constant current basis and manage well- should we go for one such?

Hi is that memory efect thingy is a myth or truth. Coz some guy said it is a myth.

mvs sarma · 29th October 2007, 07:35 AM

There are mixed comments on this subject- nothing is solidified as on date.

similar are general cases like vitamin C reduces cold.\- cofee is dangerous to heart - some times it helps heart.

charging possibility of dry cells- many people beleive this.

let us have our own observations.

Practically we can't manage a battery unrtill it completely discharges and then only charge? such is a case we can'r run our electronic sysytems.

**Nigel Goodwin** · 29th October 2007, 10:58 AM

Quote:

Originally Posted by pasanlaksiri

Hi is that memory efect thingy is a myth or truth. Coz some guy said it is a myth.

No it's not a myth, NiCd's are rerally pretty poor things, mostly because of poor chargers - hopefully a well specified charger like above would extend NiCd life considerably.

As for mvs sarma

Quote:

Originally Posted by mvs sarma

But when these Ni-cd and Ni-Mh could be charged on Constant current basis and manage well- should we go for one such?

Presumably the design above uses constant current charging?, but doing so without dv/dt detection or over temperature detection, is just going to ruin the NiCd's.

blueroomelectronics · 29th October 2007, 01:17 PM

The design does not appear to have a cell temperature sensor. Odd omission for such a complex design.

**Nigel Goodwin** · 29th October 2007, 01:25 PM

Quote:

Originally Posted by blueroomelectronics

The design does not appear to have a cell temperature sensor. Odd omission for such a complex design.

Not really, a cell temperature sensor is really only suitable for batteries permanently built in to something - not standalone batteries.

gregmcc · 29th October 2007, 04:45 PM

I built it a while back - works fine on with all my rechargeable batteries.

v1r05 · 29th October 2007, 04:55 PM

recharging alkaline batteries ??!! everybody got to see this :

http://www.afrotechmods.com/reallych...ries/batts.htm

mvs sarma · 29th October 2007, 05:31 PM

Quote:

Originally Posted by gregmcc

I built it a while back - works fine on with all my rechargeable batteries.

CONGRATULATIONS & THANKS for the performance reports.

pasanlaksiri · 29th October 2007, 05:40 PM

Quote:

Originally Posted by gregmcc

I built it a while back - works fine on with all my rechargeable batteries.

Oh man thank u very much

pasanlaksiri · 29th October 2007, 05:42 PM

Quote:

Originally Posted by v1r05

recharging alkaline batteries ??!! everybody got to see this :

http://www.afrotechmods.com/reallych...ries/batts.htm

Thanks but i think it is a waist of time

**3v0** · 29th October 2007, 11:47 PM

Quote:

Originally Posted by Nigel Goodwin

Not really, a cell temperature sensor is really only suitable for batteries permanently built in to something - not standalone batteries.

It sounds useful. Why is it not suitable? Are you thinking it would be difficult to sense the temperature of removable cells ?

**Nigel Goodwin** · 30th October 2007, 12:26 AM

Quote:

Originally Posted by 3v0

It sounds useful. Why is it not suitable? Are you thinking it would be difficult to sense the temperature of removable cells ?

Perhaps you consider taping a temperature sensor to each cell every time you want to charge it a reasonable procedure?, but I certainly don't!

Gayan Soyza · 30th October 2007, 06:24 AM

All the problem comes in when FAST charging occurs. Unless you charge at a TRICKLE charge something like 10% rate no need to worry at all.

The interesting part is to change the jumper according to the number of cells.
Very useful when charging multiple cells at once.

But I want to verify can this circuit control the charging current?

Anyway thanks for sharing

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29th October 2007, 06:31 AM	(permalink)
pasanlaksiri	Hv anyone built the OSHONSOFT Intelligent NiCd/NiMH Charger/Cycler with 2x16 Ch. Disp Have anyone built the Oshonsoft charger yet. Coz its really looks like it has some intelligence Link> http://www.oshonsoft.com/picchargerlcd.html Link> http://www.oshonsoft.com/picchargerlcd.html Hv any one built this b4 ? How is it? superb or not that much use full? __________________ Digital Voltmeter PIC16F877 Audio CD Player My home made 2.1 System Nokia 3310 Lcd & Pic12F629 3 channel IR remote Controller Project using 12F Pic Pasan...

29th October 2007, 06:49 AM	(permalink)
mvs sarma	Nice to study one such item. Thanks to Pasanlaksiri. I am reminded of a radio design by Siemens called "Radio receiver with component maximum" Processor controlled Chargers are always welcome. Any way, if the battery would have been Li-ion, it might call for tighter charge control and such complex controll would be purposeful.. But when these Ni-cd and Ni-Mh could be charged on Constant current basis and manage well- should we go for one such? __________________ Regards, Sarma.

29th October 2007, 07:35 AM	(permalink)
mvs sarma	There are mixed comments on this subject- nothing is solidified as on date. similar are general cases like vitamin C reduces cold.\- cofee is dangerous to heart - some times it helps heart. charging possibility of dry cells- many people beleive this. let us have our own observations. Practically we can't manage a battery unrtill it completely discharges and then only charge? such is a case we can'r run our electronic sysytems. __________________ Regards, Sarma.

29th October 2007, 01:17 PM	(permalink)
blueroomelectronics	The design does not appear to have a cell temperature sensor. Odd omission for such a complex design. __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com

29th October 2007, 04:45 PM	(permalink)
gregmcc	I built it a while back - works fine on with all my rechargeable batteries.

29th October 2007, 04:55 PM	(permalink)
v1r05	recharging alkaline batteries ??!! everybody got to see this : http://www.afrotechmods.com/reallych...ries/batts.htm

30th October 2007, 06:24 AM	(permalink)
Gayan Soyza	All the problem comes in when FAST charging occurs. Unless you charge at a TRICKLE charge something like 10% rate no need to worry at all. The interesting part is to change the jumper according to the number of cells. Very useful when charging multiple cells at once. But I want to verify can this circuit control the charging current? Anyway thanks for sharing __________________ Gayan My Website http://gsmicro.blogspot.com/