Claims
- 1. A charge/discharge control circuit comprising:
- overcharge/overdischarge detection means for detecting an overcharged/overdischarged condition of an electric power source; and
- control means for receiving and logically processing an output signal of the overcharge/overdischarge detection means and for outputting a signal for controlling the charge/discharge of the electric power source;
- wherein the overcharge/overdischarge detection means includes means for resetting a level of an overcharge detection voltage by feeding back its output signal.
- 2. A chargeable electric power source apparatus having a secondary cell connected through switch means from an external electric power source terminal, and a charge/discharge control circuit connected in parallel to the secondary cell for controlling the switch means, the charge/discharge control circuit comprising:
- overcharge/overdischarge detection means for detecting an overcharged/overdischarged condition of the secondary cell; and
- control means for receiving and processing an output signal of the overcharge/overdischarge detection means and for outputting a signal for controlling the switch means;
- wherein the overcharge/overdischarge detection means includes means for resetting a level of an overcharge detection voltage by feeding back its output signal.
Priority Claims (18)
Number |
Date |
Country |
Kind |
4-313515 |
Nov 1992 |
JPX |
|
5-3561 |
Jan 1993 |
JPX |
|
5-51110 |
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 |
May 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
The present application is a divisional of prior U.S. application Ser. No. 08/816,196, filed on Mar. 12, 1997 now U.S. Pat. No. 5,841,265, which is hereby incorporated by reference, and priority thereto for common subject matter is hereby claimed.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
5530336 |
Eguchi et al. |
Jun 1996 |
|
5547775 |
Eguchi et al. |
Aug 1996 |
|
Divisions (1)
|
Number |
Date |
Country |
Parent |
816196 |
Mar 1997 |
|