DIY vertical grip for my 5d... vertical shutter release works:):)
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greenieadi
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I don't have the NP800 or the BP200 but I can do it if I have those items is available. Cutting open the batteries is a bit labour intensive. Other than that, ie. soldering is simple.
I can try to do it for you, FOC. But u supply the items. And if can't work, don't blame me lah! But it looks really, it is straight forward, No-brainer diagram.
Anyone?;p
I can try to do it for you, FOC. But u supply the items. And if can't work, don't blame me lah! But it looks really, it is straight forward, No-brainer diagram.
Anyone?;p
smtan24
Senior Member
muko said:
Why don't you buy 1.5V rechargable batteries from:
http://www.cetsolar.com/accuram.htm.
Don't need to disassemble NP800. The 1.5V battery looses it charge at o.5% a month way better than other rechargable batteries
greenieadi
Member
One issue is the inventor uses 2 7.4v Li-ion batts but the input DC is 6V. The current is not an issue here but voltage is.
Normally a NimH rechargeable batts is rated at 1.2V, so meaning 1.2v x 5pcs = 6V.
I prefer to match voltage required by the equipment.
"External Power Source: 6 V DC (with AC adapter AC-11)" from manual.
Any thoughts anyone?
Normally a NimH rechargeable batts is rated at 1.2V, so meaning 1.2v x 5pcs = 6V.
I prefer to match voltage required by the equipment.
"External Power Source: 6 V DC (with AC adapter AC-11)" from manual.
Any thoughts anyone?
greenieadi
Member
TME said:
Yes, via the 6V DC jack.
S@!tt man...!!
Cannot find li ion batery in simlim...
need to order online...
guys... normally a power supply block has a regulator.. in this case is the 6v regulator...
plus... battery 7.4v is rating only and open circuit voltage.. if loaded sure will drop...
but too make sure about regulator need to check what is inside...
that is why if have such technical spec do let me know...
Cannot find li ion batery in simlim...
need to order online...
guys... normally a power supply block has a regulator.. in this case is the 6v regulator...
plus... battery 7.4v is rating only and open circuit voltage.. if loaded sure will drop...
but too make sure about regulator need to check what is inside...
that is why if have such technical spec do let me know...
greenieadi
Member
muko said:
UPDATE : Formula for Output voltage should be this : Vout = 12 (1 + (R1/R2)) PLEASE NOTE !!!!!!
Hope this helps. The simplest type I know. Max input voltage is 35V, so I see no problem. Anyway, what output voltage should we set?
greenieadi
Member
derelictz said:
U can use for the Pana FZ20 or any camera. Main purpose is to have constant desired output voltage.
muko brought up the issue of voltage drop with load, so this circuit should arrest the problem.
derelictz, I believe u can get the stuffs at Sim Lim Tower. If I'm free to go down, I will get stuff and do a protoype of the circuit. But don't wait for me. Anybody free can try lah.:sweat:
If Vout = Vin x (1 + R1/R2), than Vout is always larger than Vin
greenieadi said:
UPDATE : Formula for Output voltage should be this : Vout = Vin (1 + (R1/R2)) PLEASE NOTE !!!!!!
Hope this helps. The simplest type I know. Max input voltage is 35V, so I see no problem. Anyway, what output voltage should we set?
greenieadi said:
i'm incredibly stupid at this kinda stuff... can anyone actually put in the effort to do 1 for me? :embrass: i'll pay for the materials n maybe a token sum for the effort..
not urgent... cos im broke now too.. but i think it'll come in handy for me cos sometimes when i wan to take portrait shots instead of landscape i feel very uncomfortable bout my hand positions n stuff like tat.. :sweat:
greenieadi
Member
weikee said:
Ooops not Vin, should be the value 12. Bro, to spare further confusion -
LM7812 Max voltage is 35V. Voltage output design is a constant 12V, thus the circuit formula is use to output anything less than 12V. Do check the datasheet for clarification
Again, formula : Desired voltage = 12( 1 + R1/R2)
weikee, thanks.
i try the 6v to the minolta 7hi, and it will not power up.. need to increase till 6.5v to power up the 7hi...and after some stupid things i did on the regulator, plug in and i blow the 7hi power board... and thats the end of my 7hi 
learn an expensive lesson.
Please use this to get variable voltage.
http://www.circuit-innovations.co.uk/LM317.html
learn an expensive lesson.Please use this to get variable voltage.
http://www.circuit-innovations.co.uk/LM317.html
what stupid things bro?weikee said:i try the 6v to the minolta 7hi, and it will not power up.. need to increase till 6.5v to power up the 7hi...and after some stupid things i did on the regulator, plug in and i blow the 7hi power board... and thats the end of my 7hi
Please use this to get variable voltage.
http://www.circuit-innovations.co.uk/LM317.html
can share?
sure...
I build an A/C 220V to DC "adjustable" adaptor using the IC i mention, it was doing fine for my 7Hi. I really need the adaptor cause the 7Hi drain power like drinking water.
I left the adaptor on the wall plug for sometime "not knowing it was fry by lightning/thunder".. plug my 7Hi... kaboom..... smoke coming out from the CF slot, end of 7Hi start of 5D
I build an A/C 220V to DC "adjustable" adaptor using the IC i mention, it was doing fine for my 7Hi. I really need the adaptor cause the 7Hi drain power like drinking water.
I left the adaptor on the wall plug for sometime "not knowing it was fry by lightning/thunder".. plug my 7Hi... kaboom.....
smoke coming out from the CF slot, end of 7Hi start of 5DTrigger Happy
New Member
ok guys, i finally!!! managed to get hold of a BP-200. this weekend i will try muko's suggestion to remove the screws instead of cutting away the battery insert section. i'll shelf the plan for added batteries in the grip for now. the plan is to link the shutter wires to the CD-ROM adaptor (cut already), with a branch for each of the three connections, to cater for a remote later on in the AA battery cavity. wish me luck!
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