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Trickle Charge Rechargeable Battery w/ DC-DC Boost Circuit?

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I have an approximate 0.8 - 1.2V input and wish to BOOST the voltage to at least 1.5V to charge a 1.2V Rechargeable NiCD battery. is this possible? (Does 1.5V make sense?)

What circuit or chip would any of you recommend to accomplish this task?

Thanks for any help or recommendations.:D
 

its possible but the time of battery charge will decrease
 

Re: Trickle Charge Rechargeable Battery w/ DC-DC Boost Circu

Right, that's what I was expecting (lower current, higher voltage)

Do you have any ideas circuits or chips to build/buy to accomplish this?
 

Hi,
Yes, these is a possibility, as extrems:):
LTC3588-1 or LTC3108-1 Ultralow Voltage Step-Up Converter and Power Manager.
K.

Added after 3 hours 29 minutes:

And here is some better selection possible :):
 

Hali,
I have reded yet as newst Microchip information:
"Featuring a start-up voltage of 0.65 V and an operating voltage down to 0.35 V, the MCP1623/4 regulators reduce the number of batteries needed in a typical design--even enabling designs to be powered from a single Alkaline, NiMh, NiCd, or disposable Lithium battery cell."
K.
 

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