CHARGING APPARATUS FOR SECONDARY BATTERY
First Claim
1. A charging apparatus for a secondary battery, comprising:
- a power supply circuit connected to a primary winding of a transformer;
a main winding and a sub winding connected to a secondary side of the transformer;
a charging circuit connected to the main winding, the charging circuit supplying power to a battery pack to be charged; and
a control circuit connected to the sub winding, the control circuit controlling the charging circuit,wherein the charging circuit comprises a LED indicating a standby state or a charge completion state, the LED being lighted at light-load time of the charging circuit based on a command of the control circuit.
1 Assignment
0 Petitions
Accused Products
Abstract
A charging apparatus for a secondary battery comprises: a power supply circuit connected to a primary winding 11a of a transformer T1; a main winding 11b and a sub winding 11c connected to a secondary side of the transformer T1; a charging circuit 110 connected to the main winding 11b, the charging circuit 110 supplying power to a battery pack 130 to be charged; and a control circuit 120 connected to the sub winding 11c, the control circuit 120 controlling the charging circuit 110, wherein the charging circuit 110 comprises a LED 140 indicating a standby state or a charge completion state, the LED 140 being lighted at light-load time of the charging circuit 110 based on a command of the control circuit 120.
25 Citations
4 Claims
-
1. A charging apparatus for a secondary battery, comprising:
-
a power supply circuit connected to a primary winding of a transformer; a main winding and a sub winding connected to a secondary side of the transformer; a charging circuit connected to the main winding, the charging circuit supplying power to a battery pack to be charged; and a control circuit connected to the sub winding, the control circuit controlling the charging circuit, wherein the charging circuit comprises a LED indicating a standby state or a charge completion state, the LED being lighted at light-load time of the charging circuit based on a command of the control circuit. - View Dependent Claims (2, 3, 4)
-
Specification