Claims
- 1. A charge/discharge control circuit comprising:
- an overcharge/overdischarge detection means for detecting the overcharge/overdischarge of an electric power source; and
- a control means for receiving and logically processing a signal from said overcharge/overdischarge detection means and for outputting a signal for controlling the charge/discharge of the electric power source;
- wherein when said electric power source is connected with its plus and minus polarities being reversed, said control means always outputs a signal for stopping the charge/discharge of the electric power source.
- 2. A chargeable electric power source apparatus having a secondary cell connected through a switching on means from an external electric power source terminal and a charge/discharge control means connected in parallel to said secondary cell for controlling said switching on means, said charge/discharge control means being characterized in that when said secondary cell is connected to said charge/discharge control means with its plus and minus polarities being reversed, said charge/discharge control means has a function to output a signal for turning off the switching on means.
Priority Claims (18)
Number |
Date |
Country |
Kind |
4-313515 |
Nov 1992 |
JPX |
|
5-3561 |
Jan 1993 |
JPX |
|
5-21110 |
Mar 1993 |
JPX |
|
5-52476 |
Mar 1993 |
JPX |
|
5-56208 |
Mar 1993 |
JPX |
|
5-57563 |
Mar 1993 |
JPX |
|
5-57564 |
Mar 1993 |
JPX |
|
5-62259 |
Mar 1993 |
JPX |
|
5-62260 |
Mar 1993 |
JPX |
|
5-65758 |
Mar 1993 |
JPX |
|
5-67132 |
Mar 1993 |
JPX |
|
5-94677 |
Apr 1993 |
JPX |
|
5-120198 |
Apr 1993 |
JPX |
|
5-126238 |
May 1993 |
JPX |
|
5-220279 |
Sep 1993 |
JPX |
|
5-223647 |
Sep 1993 |
JPX |
|
5-224186 |
Sep 1993 |
JPX |
|
5-261285 |
Oct 1993 |
JPX |
|
Parent Case Info
This application is a division of Ser. No. 08/816,196, filed Mar. 12, 1997, now U.S. Pat. No. 5,841,265.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
5825155 |
Ito et al. |
Oct 1998 |
|
Divisions (1)
|
Number |
Date |
Country |
Parent |
816196 |
Mar 1997 |
|