Click here to Skip to main content
15,902,634 members
Home / Discussions / C / C++ / MFC
   

C / C++ / MFC

 
GeneralRe: how to use memset to fill a char array with space key? Pin
leon de boer26-Jun-17 8:05
leon de boer26-Jun-17 8:05 
QuestionC programming Determine Students grade Pin
hoangtrungl22-Jun-17 22:47
hoangtrungl22-Jun-17 22:47 
AnswerRe: C programming Determine Students grade Pin
OriginalGriff22-Jun-17 22:54
mveOriginalGriff22-Jun-17 22:54 
AnswerRe: C programming Determine Students grade Pin
Jochen Arndt22-Jun-17 23:12
professionalJochen Arndt22-Jun-17 23:12 
QuestionRe: C programming Determine Students grade Pin
David Crow23-Jun-17 4:05
David Crow23-Jun-17 4:05 
AnswerRe: C programming Determine Students grade Pin
Bram van Kampen28-Jun-17 12:35
Bram van Kampen28-Jun-17 12:35 
QuestionHow to solve this compiler error. Pin
pankajkumar21-Jun-17 2:42
pankajkumar21-Jun-17 2:42 
NewsRe: How to solve this compiler error. Pin
Jochen Arndt21-Jun-17 3:23
professionalJochen Arndt21-Jun-17 3:23 
GeneralRe: How to solve this compiler error. Pin
pankajkumar23-Jun-17 2:19
pankajkumar23-Jun-17 2:19 
GeneralRe: How to solve this compiler error. Pin
Jochen Arndt23-Jun-17 2:41
professionalJochen Arndt23-Jun-17 2:41 
AnswerRe: How to solve this compiler error. Pin
Victor Nijegorodov21-Jun-17 8:39
Victor Nijegorodov21-Jun-17 8:39 
GeneralRe: How to solve this compiler error. Pin
pankajkumar23-Jun-17 2:26
pankajkumar23-Jun-17 2:26 
GeneralRe: How to solve this compiler error....changed IDE Pin
pankajkumar23-Jun-17 23:11
pankajkumar23-Jun-17 23:11 
QuestionMessage Closed Pin
21-Jun-17 0:00
东 楷21-Jun-17 0:00 
AnswerRe: How to use LM317T? Pin
Richard MacCutchan21-Jun-17 2:24
mveRichard MacCutchan21-Jun-17 2:24 
AnswerRe: How to use LM317T? Pin
leon de boer21-Jun-17 2:40
leon de boer21-Jun-17 2:40 
Not really a question for a programming site but as it's in my area. You configure the LM317T as a current source you can neglect the voltage totally. There is a formula for trickle charge rate of NiMh an online calculator is here Rechargeable battery charging time and mA current calculator | Convert to units and culinary measures.[^]

For a 2000maH stack maximum trickle charge rate is 66mA which is well within range of your solar panels. You can't charge any faster using a simple LM317T circuit otherwise you will damage the batteries.

Finally the circuit is shown here (second one with the solar panels)
Ni-Cad Battery Charger with LM317 - Jose Pino's Projects and Tidbits.[^]

The 22 Ohms on the circuit will give you 56mA of trickle charge .. if you want exact max 66mA you need 19 Ohm 1/2 Watt resistor.

The diode protect (1N4001) protects the solar panels when they aren't in sunlight

You want a more advanced charger go to a proper electronics hobby site and not here Smile | :)
In vino veritas

GeneralRe: How to use LM317T? Pin
Jochen Arndt21-Jun-17 3:04
professionalJochen Arndt21-Jun-17 3:04 
GeneralRe: How to use LM317T? Pin
leon de boer21-Jun-17 3:39
leon de boer21-Jun-17 3:39 
QuestionNeed Source Code for Decoding _Using algorithm Pin
Member 1326117519-Jun-17 23:29
Member 1326117519-Jun-17 23:29 
QuestionRe: Need Source Code for Decoding _Using algorithm Pin
Richard MacCutchan20-Jun-17 0:03
mveRichard MacCutchan20-Jun-17 0:03 
AnswerRe: Need Source Code for Decoding _Using algorithm Pin
Member 1326117520-Jun-17 1:46
Member 1326117520-Jun-17 1:46 
GeneralRe: Need Source Code for Decoding _Using algorithm Pin
Member 1326117520-Jun-17 1:47
Member 1326117520-Jun-17 1:47 
GeneralRe: Need Source Code for Decoding _Using algorithm Pin
leon de boer20-Jun-17 3:34
leon de boer20-Jun-17 3:34 
GeneralRe: Need Source Code for Decoding _Using algorithm Pin
Member 1326117520-Jun-17 22:32
Member 1326117520-Jun-17 22:32 
GeneralRe: Need Source Code for Decoding _Using algorithm Pin
leon de boer21-Jun-17 2:08
leon de boer21-Jun-17 2:08 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Praise Praise    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.