I have investigated this possibility too. The problem is locating the
wires that come from the battery terminals. As far as I could test,
these wires run directly to the display side (most likely where power
management occurs between the main batteries and the backup battery).
My original plan was to place a small "Sony" type AC connector in the
Ogo and just have plug and play capability. The AC connector has a
built in "switch" that disconnects the batteries when the plug is
inserted. It would have worked great, but I could not locate the power
supply leads. If someone can, it would be a benefit to those of us in
pursuit of a better AC adapter.
Jeff Hinman
>----------
>From: Marc DeVinney[SMTP:Marc.DeVinney@rockdal.aud.alcatel.com]
>Sent: Monday, July 14, 1997 2:37 PM
>To: Hinman, Jeffrey M
>Cc: 'Martin Adams'; 'ogo@lifelike.com'
>Subject: Re: Ogo Power Supply ,Another way?
>
>If you examine battery-operated devices with AC adapter sockets, there's
>almost always a switch inside the socket that disconnects the battery
>when the adapter is plugged in. If you were to use this type of
>connector when modifying your Ogo, you could leave your batteries in
>when the AC adapter is connected.
>
>MED.
>
>Hinman, Jeffrey M wrote:
>
>> Hi Martin.
>>
>> I would NOT suggest leaving the batteries in and connecting the
>> alligator leads to the terminals. In effect you are setting up a
>> parallel circuit with dissimilar resistance in the sources. Most
>> likely, the AC adapter will try to charge the alkalines - not a good
>> idea. The only way around this is to put a diode or electronic switch
>>
>> in between the batteries and AC adapter connection to keep the current
>>
>> from flowing back to the batteries once the adapter is connected. I
>> have been unable to find a circuit or diode that will work without
>> decreasing the voltage supplied to the Ogo circuitry.
>>
>> Jeff Hinman
>>
>>
>
>
>
>--
>mailto:Marc.DeVinney@bigfoot.com
>http://home.att.net/~Marc.DeVinney
>
>
>
>