Re: Astec AA9090A power supply

[Brad O'Dell]

The power supply block, according to the one page spec sheet, has battery terminals marked +Batt and -Batt as well as the normal DC input.   The pinouts are:   SK1: 1    +VIN 2    +VIN 3    -VIN 4    -VIN 5    -Vs    \ 6    -Vs    | I don't know what these are for. 7    +Vs   /      SK2: 1    5.1V 2    5.1V 3    -26V 4    +12.6V 5    0V 6    0V 7    Batt-in-use 8    Disable 9    CCFT ADJ 10    CCFT Disable 11    Batt L1 12    Batt L2 13    SW1    \power switch 14    SW2    / 15    POK (power OK)   SK3: (backlight) 1    COM 2    COM 3    NC 4    V01 5    NC 6    V02   SK4: 1    +Batt 2    +Batt 3    -Batt 4    -Batt ----- Original Message ----- From: Fred Townsend To: Multiple recipients of list CHIPDIR-L Sent: Thursday, June 23, 2005 2:53 PM Subject: Re: Astec AA9090A power supply Unless you have some very strange laptop the power supply furnishes raw DC to the laptop down converter which charges the lap top battery. The laptop determines what kind of battery is used, not the plug in the wall power supply. Fred Townsend Brad O'Dell wrote: I have an Astec AA9090A power supply, like the one you can buy from Hosfelt or Jameco.  It is a power supply for an older laptop computer, and I wanted to know what type of battery it charges (NiCd or NiMH, and mA/H charge rate). I have the one page spec sheet from Jameco, but it does not give this info.   Thanks, Brad